Sciences, Beijing, China b China Huadian Engineering CO., Ltd (CHEC), Beijing, China

Size: px
Start display at page:

Download "Sciences, Beijing, China b China Huadian Engineering CO., Ltd (CHEC), Beijing, China"

Transcription

1 This article was downloaded by: [Institute of Engineering Thermophysics] On: 17 April 2013, At: 02:20 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: Registered office: Mortimer House, Mortimer Street, London W1T 3JH, UK International Journal of Green Energy Publication details, including instructions for authors and subscription information: Design of the First Chinese 1 MW Solar- Power Tower Demonstration Plant Wei Han a, Jin Hongguang a, Su Jianfeng b, Lin Rumou a & Wang Zhifeng c a Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, China b China Huadian Engineering CO., Ltd (CHEC), Beijing, China c Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China Version of record first published: 07 Oct To cite this article: Wei Han, Jin Hongguang, Su Jianfeng, Lin Rumou & Wang Zhifeng (2009): Design of the First Chinese 1 MW Solar-Power Tower Demonstration Plant, International Journal of Green Energy, 6:5, To link to this article: PLEASE SCROLL DOWN FOR ARTICLE Full terms and conditions of use: This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

2 International Journal of Green Energy, 6: , 2009 Copyright Ó Taylor & Francis Group, LLC ISSN: print / online DOI: / DESIGN OF THE FIRST CHINESE 1 MW SOLAR-POWER TOWER DEMONSTRATION PLANT Wei Han 1, Jin Hongguang 1, Su Jianfeng 2, Lin Rumou 1, and Wang Zhifeng 3 1 Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, China 2 China Huadian Engineering CO., Ltd (CHEC), Beijing, China 3 Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China This article presents thermodynamic performance of a solar-power tower plant, DAHAN, which is constructed in Beijing as the first Chinese solar-power tower demonstration plant. Different from the existing solar-power tower plant, the DAHAN configuration includes a twostage thermal-energy storage system consisting of a high-temperature oil accumulator and a low-temperature steam accumulator. The sensible heat and latent heat of steam are stored in the high- and low-temperature accumulators, respectively. The new plant is designed in such a way that during the operation the receiver can be connected to a steam turbine or energystorage system. Software that simulates the performance of the plant has been developed and the thermodynamic performance of the plant was investigated. The results show that the annual thermal efficiency from solar to power of the plant can reach 8.35%. The annual efficiency of plant can be increased by 0.65 percentage points at the optimal condition. The results provide a better understanding for the design and operation of solar-power tower plant. Keywords: Solar-power tower; Two-stage thermal energy storage; Operating mode; Optimization INTRODUCTION Facing fossil-fuel shortage, concentrating solar-power (CSP) technologies, including parabolic troughs, power towers, and dish/engines, have the potential to provide the world with clean, renewable, cost-competitive power in the future (Durrschmidt and Zimmermann 2006; Kalogirou 2004). Solar-power tower plants stand out as having largescale and high-efficiency potential. Power tower plants operate by focusing a field of thousands of mirrors into a receiver located at the top of a tower. The receiver collects the sunlight in a heat transfer fluid, which is used to generate steam for a conventional steam turbine for production of electricity (Casal 1987). Currently a number of experimental or commercial systems have been built around the world in the last twenty years. Solar One (USA) and PS10 (Spain) are the demonstration plants using water/steam as the heat-transfer fluid. In Solar One, the superheated steam is Address correspondence to Wei Han, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, , China. hanwei@mail.etp.ac.cn 414

3 DESIGN OF THE FIRST CHINESE 1 MW SOLAR-POWER TOWER 415 generated in the receiver to the drive stream turbine directly. The thermal-storage unit has adopted oil/rock as the thermal-storage material, and large exergy destruction occurred during the processes of heat transfer. The steam generated from the energy-storage unit with low temperature was used to pipeline preservation and startup of the steam turbine (Reilly and Kolb 2001). The running of the steam turbine in such a system completely depends on the weather conditions. The turbine would drop offline each time a cloud came by (Tyner 1996). PS10 is the first commercial solar-power tower plant in the world. Different from Solar One, the receiver of the PS10 generated saturated steam, which was used by a saturated-steam turbine for power production. The surplus saturated steam was stored in a steam tank, which can provide steam to the turbine for power generation. This way, PS10 decouples solar-energy collection from electricity production. But the thermal efficiency of PS10 can not be increased much in the near future because of the low thermal efficiency of the saturated-steam turbine (Osuna et al. 2000, 2006). Solar Two (USA) is a demonstration plant using molten salt as the heat-transfer fluid, which represents one of the most cost effective methods and is a leading candidate in this technology. The working fluid for heat transfer and heat storage is the same, and the large exergy destruction during the thermal-energy storage and release process that occurs in Solar One is avoided. But the molten salt technology is new especially in China, as there are now no commercial solar power plants with molten salt used as the heat-transfer fluid in in the world. Several problems, including tube freezing, leaking, pipeline corrosion, and salt decomposing, should be studied. China will establish the first 1 MW demonstration solar-power tower plant in Beijing with water/steam as the heat transfer fluid. The aims of this article are to identify the features of the plant and to investigate and optimize the thermodynamic performance. CONFIGURATION OF THE NEW SOLAR-POWER TOWER PLANT Figure 1 is a flowchart of the new solar-power tower plant, which is composed of a solar concentration and steam-generation subsystem, a thermal-energy storage subsystem, and a power-generation subsystem. The sunlight is collected by concentrating solar radiation on a tower-mounted heat exchanger (receiver) by reflection of a hundred of suntracking mirrors called heliostats. In this plant, the height of the tower is about 100 m, and the mirror area of each heliostat is 100 m 2. Superheated steam is generated in the receiver, and then is fed to a steam turbine for electricity production. The exhaust steam is introduced to a condenser, and then the condensed water is pressed by a condensing pump and enters a deacrator, where the deliquescent air in the water is separated. Finally the feed water is pumped to the receiver again (Wang et al. 2007). When the steam generated by the receiver is more than the steam turbine s requirement, the surplus steam enters the thermal-energy storage subsystem, which is composed of a high-temperature oil heat accumulator and a low-temperature steam heat accumulator. In the oil accumulator, the thermal-storage material is synthetic oil. The cold oil from a cold tank is pumped by an oil pump to a steam-oil heat exchanger (a), where the superheated steam heats the low-temperature oil from 240 C to about 350 C, and then the hot oil is stored in a hot tank. After the heat-exchange process, the superheated steam is converted to near-saturated steam and then is fed to the steam accumulator (b) in which the saturated steam heats the supercooled water to saturated water at high pressure, and at the same time the saturated steam itself also is converted into saturated water.

4 416 HAN ET AL. Figure 1 System configuration of the DAHAN solar power tower plant. When a cloud shades the sun and the receiver can not provide enough steam to the steam turbine, the thermal energy stored in the thermal-energy storage system will be released. The steam accumulator will generate saturated steam by pressure drop (throttling), and then it is heated in an oil-steam heat exchanger (c) by the hot oil from the hot tank. After successive heating in a steam heater with natural gas as fuel, the superheated steam is fed to the steam turbine for electricity production. Since the pressure of the steam generated by the steam accumulator will decrease gradually, the steam turbine will run under off-design condition. Besides the receiver and the thermal-energy storage system, there is an auxiliary boiler fueled by natural gas. This boiler can drive the steam turbine and provide steam to the energy-storage system even no sunlight. In the previous description the receiver and the steam turbine are coupled, and a system running in this manner is in the coupling mode. In the new system, the receiver can also be decoupled from the steam turbine (decoupling mode). As shown in Figure 1, when the valve (d) is closed, all of the superheated steam generated in the receiver enters the thermal-energy storage subsystem. At the same time the saturated steam is generated by the high-pressure water accumulator, and then it is introduced to a heat exchanger, where it is superheated by the hot oil from the hot tank. At last the superheated steam is heated continually in a heater firing natural gas and then provided to the steam turbine. EVALUATION OF SOLAR THERMAL TOWER PLANT Assumption of System Simulation The mirror field of the DAHAN plant is designed by the co-workers from the Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science. They provided the hourly mirror-field efficiency data. The designed optical

5 DESIGN OF THE FIRST CHINESE 1 MW SOLAR-POWER TOWER 417 efficiency of the mirror field of the DAHAN plant is 81.72%, and the annual field efficiency is about 74.9% (Wei et al. 2007). The loss of mirror cleanliness should be considered, because the heliostats become dirty and lose reflectivity. Since the measured annual average clean efficiency in Solar Two plant respectively were 0.9 (Israel 2006) and 0.95 (Pacheco 2002), we assumed the annual average efficiency of mirror reflectivity and mirror cleanliness in the DAHAN plant were similar to those in the Solar Two plant. The area of mirror is m 2 including 100 heliostats with a field availability of 95%. The receivers are cavity pipes generating superheated steam of 2.8 MP, 400 C, and the efficiency from solar to heat is about 90%. The rated power of the nonreheated steam turbine is 1.0 MW, and the thermal efficiency is about 24.0% because of the small scale and the low inlet temperature. Figure 2 shows the off-design performance of the steam turbine. The main assumptions throughout all calculations of the DAHAN plant are reported in Table 1. Simulation of DAHAN Plant In order to evaluate the thermodynamic performance of the DAHAN plant, a program simulating the processes from solar energy to power was developed. The inputs of the program are the hourly solar direct normal irradiance (DNI) and the mirror-field efficiency, which will be dispersed per 0.01 hour linearly before simulation. During the calculation from solar to thermal energy, we directly use the mirror-field efficiency data provided by the co-workers of Changchun Institute. Then the plant will be simulated automatically day by day according to the operation mode. The solar-energy input and power output will be accumulated and the performance of the DAHAN plant in a whole year can be obtained. In both operating modes, if the DNI of solar radiation is higher than 300 W/m 2, the mirror field starts working. The superheated steam generated by the receiver is first stored in the energy storage system until half of the steam accumulator is filled. When the system is running in coupling mode, the steam generated in the receiver is provided to the steam turbine directly to start it up, and the output work of turbine is increased by about 15% every 10 minutes. About one hour later, the steam turbine runs under rated conditions. If the steam generated Flux of steam Steam consumption rate Thermal efficiency Steam consumption rate (kg/kwh) Ratio of actual power output to rated power output Figure 2 Off-design performance of the steam turbine.

6 418 HAN ET AL. Table 1 Main assumption throughout all calculations. Item Value Area of mirrors, m Outlet pressure of receiver, MPa 2.8 Outlet temperature of receiver, C 400 Specific heat of oil, kj/(kg C) 3.25 Density of oil, t/m Temperature of cold tank, C 240 Temperature of hot tank, C 350 Volume of cold and hot tank, m 3 10 Weight of oil, t 8 High pressure of water tank, MPa 2.5 Low pressure of water tank, MPa 1.05 Volume of water tank, m Volume availability of water tank 0.85 Outlet pressure of feed water pump, MPa 3.98 Outlet pressure of condensing pump, MPa 0.15 by the receiver is more than the requirement of the steam turbine, the surplus steam is introduced to the energy-storage system and stored in it. When the receiver can not provide enough steam to the turbine, the turbine will run under off-design conditions. Until the output of the turbine is decreased by 10%, the energy-storage subsystem begins to work and provides steam along with the receiver to the steam turbine. When the system is running in decoupling mode, the steam generated by the receiver still enters the energy-storage subsystem; however, the energy-storage subsystem will generate superheated steam to the turbine. If the receiver generates more steam than the requirement of the turbine, the surplus steam will be stored in the oil accumulator and steam accumulator. Otherwise the energy-storage system will provide enough steam to the steam turbine. If the energy-storage system can not generate enough steam, the steam turbine will work under the off-design condition. Figures 3a and 3b respectively showed the simulation results of the DAHAN plant under coupling and decoupling mode in a typical day. The profile of DNI, electric power output of the steam turbine, thermal energy stored in the oil accumulator and steam accumulator, and natural gas consumption according to time were illustrated. Comparing Figure 3a and 3b, the natural gas consumption in decoupling mode is higher than that in coupling mode, because all of the steam generated by the energy-storage subsystem needed to be heated in the steam superheater. When the DNI is lower than 200 W/m 2 the mirror field will be shut down and the turbine will continue to run, driving by the energy-storage subsystem until the pressure in steam accumulator decreases to 1.05 MPa. The temperature and pressure of the key point in Figure 1 under the design condition were reported in Table 2. The estimated peak efficiencies for the DAHAN subsystems and the Solar Two subsystems (Tyner et al. 1996) were listed in Table 3. Comparing the DAHAN and the Solar Two, the field efficiency of DAHAN is higher 13.7 percentage points than that of the Solar Two. The main reason is the scale of the mirror field. The total reflective surface of the DAHAN is 10,000 m 2, however it is 81,400 m 2 in the Solar Two. Since a cavity receiver is adopted in the DAHAN system instead of a cylindrical shell, the receiver efficiency of the DAHAN is increased by 3 percentage points compared with that of the Solar Two. The inlet temperature and pressure of steam turbine in the DAHAN respectively are 390 C and 2.354

7 DESIGN OF THE FIRST CHINESE 1 MW SOLAR-POWER TOWER 419 a Energy stored in steam accumulator (MJ)/40 Electricity (kw) Value DN I(W/m 2 ) Energy stored in oil accumulator(mj)/40 b Value Fuel consumption (kw) Hr (h) Energy stored in steam accumulator (MJ)/40 DN I(W/m 2 ) Electricity (kw) Fuel consumption (kw) Energy stored in oil accumulator(mj)/ Hr (h) Figure 3 (a) Profile of system operating in coupling mode. (b) Profile of system operating in decoupling mode. Table 2 Temperature and pressure of points in figure 1. Points Temperature ( C) Pressure (MPa) Points Temperature ( C) Pressure (MPa) MPa, which are much lower than those in the Solar Two (510 C and 10MPa). Hence, the efficiency of the power-generation system (EPGS) of the DAHAN is 10 percentage points lower than that of the Solar Two. The overall peak efficiency of the DAHAN is 1.9 percentage points lower than that of the Solar Two. Since the solar-power tower plant under decoupling mode is much dependant on fossil fuel, the annual performance of the DAHAN plant under coupling mode is

8 420 HAN ET AL. Table 3 Estimated peak efficiencies for the DAHAN subsystems in comparison to those for the solar two. Items DAHAN Solar Two Mirror reflectivity 90% 90% Field efficiency 81.7% 68% Mirror cleanliness 95% 95% Receiver 90% 87% Storage 99% 99% EPGS 24% 34% Parasitics 88% 88% Overall peak efficiency 13.1% 15.0% investigated in detail. The annual solar irradiance in Beijing is 5712 MJ/(m 2 -year). The annual net electricity output of the DAHAN is about 1338 MWh, and the net annual thermal efficiency under coupling mode is about 8.35%. The natural gas accounts for about 1% of total energy input. ADVANTAGE OF TWO-STAGE THERMAL-ENERGY STORAGE SYSTEM In the new system, the two-stage thermal-energy storage system is adopted to store the surplus thermal energy. Compared with the conventional one-stage storage system, the two-stage one can achieve lower temperature difference during the heat-exchanging processes during energy storage and release. Figures 4a and 4b respectively are the t-q diagrams of the energy-storage and release processes in two-stage and one-stage energystorage systems. During the energy-storage process in the two-stage system, the superheated steam first enters the high-temperature oil accumulator and the sensible heat of steam is transferred to synthetic oil (Dowtherm RP fluid) shown as lines B and D in Figure 4a. During this process the temperature of steam is decreased from 390 C to 265 C, and at the same time the temperature of synthetic oil rises from 240 C to 350 C. The near saturated steam is injected into the low-temperature steam accumulator, where the latent heat of steam is used to heat the unsaturated water (2.5 MPa) to saturated status as line A and C show. In the energy-release process, the saturated steam is generated in the steam accumulator through throttling, and the pressure of steam will gradually decrease from 2.5 MPa to 1.05 MPa along with steam output. In order to represent the energy release process in the t-q diagram, we assume that the steam accumulator only generates saturated steam at 1.05 MPa shown by lines C and E, and then the saturated steam is superheated to 310 Cby the synthetic oil in the oil accumulator shown by lines D and F. During the energy-storage process in the one-stage energy-storage system, the thermal energy of the superheated steam is transferred to the synthetic oil shown as lines A and B. The temperature of steam is decreased from 390 C to 220 C, and the temperature of synthetic oil rises from 190 C to 223 C at the same time. In the energy-release process, the thermal energy stored in the synthetic oil only generates the superheated steam at 1.05 MPa and 190 C. Although the steam introduced to the two types of energy-storage systems is same, the two-stage system can generate steam of 310 C, which is 120 C higher than that of the one-stage one. In the one-stage system, the heat transferred from steam to oil is limited by the pinch-point temperature difference (T pp in Figure 4b), which limits the temperature of

9 DESIGN OF THE FIRST CHINESE 1 MW SOLAR-POWER TOWER 421 a B D 280 t ( C) C A F b t ( C) B the oil rise. In the two-stage system, the sensible and latent heat of steam is stored separately, and so the temperature difference between the steam and oil is decreased obviously. Comparing Figures 4a and 4b, we can find that the irreversibility of the heattransfer processes in the two-stage system is decreased obviously compared with that of the one-stage one. E Q (kw) Q (kw) Figure 4 (a) t-q diagram of energy storage and release process in two-stage system. (b) t-q diagram of energy storage and release process in one-stage system. A C ΔT pp OPTIMIZATION OF DAHAN PLANT As in previous description, the DAHAN plant comprises three subsystems: the solarconcentration and steam-generation subsystem, the thermal-energy storage subsystem, and

10 422 HAN ET AL. the power-generation subsystem. The match these of three subsystems will influence the annual performance. Since the ratio of energy stored in the oil accumulator to that in the steam accumulator is constant, the volume of the oil accumulator or steam accumulator can indicate the capacity of the energy-storage subsystem. In this article the optimization of the key parameters were investigated, which include the area of heliostats (A), the volume of steam accumulator (V), and the rated capacity of steam turbine (P). The objective of optimization is the annual thermal efficiency of the DAHAN plant. When one parameter varies, the other two parameters stay constant. Here we assumed that the profile shape of the off-design performance of steam turbine is invariable versus the change of the rated capacity of steam turbine. The annual thermal efficiency is also calculated by the ratio of annual power output to the annual solar input. Optimization of the Area of Heliostats In this optimization process we assumed that the electric power of the steam turbine is a constant of 1 MW. Figure 5 shows the effect of the area of the heliostats on the annual thermal efficiency of the DAHAN plant. When the area of the heliostats is increased from 6,500 m 2 to 11,000 m 2, the annual thermal efficiency rises first and then decreases at a certain area of heliostats. The main reason is that more solar energy will be collected with the increase of the heliostat area, which will make the steam turbine run longer under the rated status at higher efficiency. But if the area of the heliostats is too large, the collected solar energy can not be consumed by the steam turbine nor can it be stored in the energystorage subsystem, which means that the surplus solar energy has to be released to the environment. Given a volume of the steam accumulator of 135 m 3, the optimal area of heliostats is about 8,500 m 2, and the annual thermal efficiency can reach 8.8%, which is an increase of 0.45 percentage points over that of the basic case. The volume of steam accumulator has a greater effect in the large area range of the heliostats. When the area of heliostats is smaller than 7,500 m 2, the volume of the steam accumulator has little effect Annual thermal efficiency (%) % 8.8% V = 125 m 3 V = 135 m 3 V = 150 m 3 V = 165 m 3 V = 180 m 3 P = 1MW Area of heliostats (m 2 ) Figure 5 Effect of area of heliostats on annual thermal efficiency.

11 DESIGN OF THE FIRST CHINESE 1 MW SOLAR-POWER TOWER 423 on the annual thermal efficiency as shown in Figure 5. The optimal area of heliostats and the according annual thermal efficiency will rise with the increase of the volume of the steam accumulator. Optimization of the Volume of Steam Accumulator Figure 6 illustrates the influence of the volume of steam accumulator on the annual thermal efficiency when the power output of the steam turbine is 1 MW. As the volume of the steam accumulator is increased from 70 m 3 to 300 m 3, the annual thermal efficiency of the plant is increased quickly, and then the efficiency is almost unchangeable with the further rise of the volume of the steam accumulator. The rise in the volume of the steam accumulator means more surplus solar energy can be stored instead of released to environment. But if the volume of steam accumulator is too large, then no surplus solar energy can be stored in it. Given the area of heliostats of 10,000 m 3, the optimal volume of the steam accumulator is about 180 m 3, and the annual thermal efficiency that can be reached is 8.95%, which is an increase of 0.6 percentage points over that of the basic case. The optimal volume of the steam accumulator and the according annual thermal efficiency of the plant will rise with the increase of the area of heliostats as shown in Figure 6. Optimization of the Rated Capacity of the Steam Turbine Figure 7 shows the effects of the rated steam turbine capacity on the annual thermal efficiency of the DAHAN plant when the volume of the steam accumulator is 135 m 3.As the rated steam turbine capacity is increased from 0.75 MW to 1.5 MW, the annual thermal efficiency rises first, and then decreases gradually. The main reason is that more steam will be consumed with the increase of the turbine capacity, which means more collected solar energy is converted into electricity instead of stored. But if the turbine power is large enough, the collected solar energy can not fulfill the turbine, and the turbine has to run in the off-design condition at lower efficiency. Given the area of the heliostats of 10,000 m 2, the optimal turbine power is about 1.1 MW and the annual thermal efficiency that can be Annual thermal efficiency (%) % 8.95% A = 8000 m 2 A = 9000 m 2 A = m 2 A = m 2 A = m 2 P = 1MW Volume of steam accumulator (m 3 ) Figure 6 Influence of volume of steam accumulator on annual thermal efficiency.

12 424 HAN ET AL. Annual thermal efficiency (%) % 9.0% A = 8000 m 2 A = 9000 m 2 A = m 2 A = m 2 A = m 2 V = 135 m Steam turbine power (MW) Figure 7 Effect of steam turbine power on annual thermal efficiency. reached is 9.0%, which is an increase of 0.65 percentage points over that of the basic case. The optimal steam turbine capacity and the according annual thermal efficiency of the plant will rise with the increase of the area of heliostats as shown in Figure 7. FURTHER CONSIDERATION The DAHAN plant almost depends only on solar energy because the natural gas consumption only accounts for about 1% of total energy input. Comparing with conventional power plants based on fossil fuels, the advantage of the DAHAN is that it reduces emissions of greenhouse gas and acid gases (CO 2, Sox, and NOx). Little pollutants are emitted to environment during the operation stage; there are some emissions connected with energy use in the preoperation life-cycle stages such as the manufacturing and construction of systems. Life cycle emissions of several solar thermal power plants have been investigated (Groenendaal 2002), which have indicated that the emissions from solar thermal-power technologies, including the emissions during the manufacturing of the needed materials, are a magnitude less than the emissions from conventional fossil-fuel technologies. As for the DAHAN plant, more detailed studies of the recovery of the embedded energy consumed in the preoperation life cycle-stages are needed. Both the heat-transfer fluid and the working fluid are water/steam, which is safe for the environment, except the synthetic oil using in the oil accumulator. If used and maintained properly, the synthetic oil has little negative effect on the environment (Dow Chemical Company 1996). Even if the synthetic oil leaks into the atmosphere, the leaking fluids have usually cooled and can be burnt out successively to avoid polluting the environment. CONCLUSIONS This article investigated the thermodynamic performance of the first Chinese 1 MW solar-power tower demonstration plant, and the advantages of the two-stage energy storage

13 DESIGN OF THE FIRST CHINESE 1 MW SOLAR-POWER TOWER 425 system were identified. Software that can simulate the performance of the plant in coupling mode during the whole year was developed. The DAHAN plant can generate 1338 MWh electricity each year under Beijing s climatic conditions, and the annual thermal efficiency can reach 8.35%. The key parameters including area of the heliostats, the volume of the steam accumulator, and the steam turbine power were optimized based on the software. After optimization the annual thermal efficiency might be increased by percentage points further. This study provides an improved understanding for the design and operation of solar-power tower plants. ACKNOWLEDGMENTS The research is supported by the Key Project of National High Technology Research and Development program (No. 2006AA ) and the Natural Science Foundation of China (No ). In addition, thanks are due to Prof. Zhenwu Lu and Dr. Xiudong Wei for sharing their research results on mirror field. REFERENCES Casal, F. G Solar thermal power plants. New York: Springer-Verlag. Dow Chemical Company Dowtherm RP heat transfer fluid product technical data. Accessed May 10, Durrschmidt, W., and G. Zimmermann Renewable energies innovation for the future. Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU). Public Relations Division, D-11055, Berlin. Groenendaal, B. J Solar thermal power technologies. Available at library/report/2002/c02062.pdf. Accessed August 15, Israel, J Edison technology solutions: Final report for the Solar Two project. Accessed August 1, Kalogirou, S. A Solar thermal collectors and applications. Process in Energy and Combustion Science 30: Osuna, R., V. Fernandez, M. Romero, and M. J. Marcos PS10: A 10MW solar thermal power plant for southern Spain. Proceedings of 10th Solar PACES International Symposium, March 8 10, Sydney, Australia, pp ed. Peter Catania, Boca Raton: CRC Press. Osuna, R., R. Olavarria, and R. Morillo PS10 construction of a 11MW solar thermal tower plant in Seville, Spain. Proceedings of 13th Solar PACES Symposium, Seville, Spain, June Pacheco, J. E Final Test and Evaluation Results from the Solar Two Project. SAND Solar Thermal Technology. Sandia National Laboratories, Alburquerque, NM, USA. Reilly, H. E., and G. J. Kolb An evaluation of molten-salt power towers including results of the solar tow project. SAND Sandia National Laboratories, Alburquerque, NM, USA. Tyner, C., G. Kolb, M. Prairie, G. Weinrebe, A. Valverde, and M. Sanchez Solar power tower development: recent experiences. SAN C. Wang, Z., Yao, Z., and J. Dong The design of a 1MW solar thermal tower plant in Beijing, China. Proceedings of ISES Solar World Congress. September 18 21, 2007, Beijing, China. Wei, X., Z. Lu, Z. Lin, H. Zhang, and Z. Ni Optimization procedure for design of heliostat field layout of a 1MWe solar tower thermal power plant. Proceedings of Photonics Asia 2007, Beijing, SPIE, 6841B.

Available online at ScienceDirect. Energy Procedia 49 (2014 ) SolarPACES 2013

Available online at  ScienceDirect. Energy Procedia 49 (2014 ) SolarPACES 2013 Available online at www.sciencedirect.com ScienceDirect Energy Procedia 49 (2014 ) 993 1002 SolarPACES 2013 Thermal storage concept for solar thermal power plants with direct steam generation M. Seitz

More information

OVERVIEW OF SOLAR THERMAL TECHNOLOGIES

OVERVIEW OF SOLAR THERMAL TECHNOLOGIES Introduction There are three solar thermal power systems currently being developed by U.S. industry: parabolic troughs, power towers, and dish/engine systems. Because these technologies involve a thermal

More information

Fractionation and Characterization of Waxes A. K. Gupta a ; K. M. Agrawal a ;D. Severin b a

Fractionation and Characterization of Waxes A. K. Gupta a ; K. M. Agrawal a ;D. Severin b a This article was downloaded by: [CSIR ejournals Consortium] On: 25 May 2010 Access details: Access Details: [subscription number 919661628] Publisher Taylor & Francis Informa Ltd Registered in England

More information

Solar thermal energy: A promising source for Energy Intensive Industries

Solar thermal energy: A promising source for Energy Intensive Industries Solar thermal energy: A promising source for Energy Intensive Industries Abhilash S G Lecturer, Department of Mechanical Engineering, University of Gondar, Ethiopia. Abstract: Sun is the basic source for

More information

Solar Boiler Concept for Concentrating Solar Power Plants. Ulrich Hueck, Dr.-Ing. Co-Founder

Solar Boiler Concept for Concentrating Solar Power Plants. Ulrich Hueck, Dr.-Ing. Co-Founder Solar Boiler Concept for Concentrating Solar Power Plants Ulrich Hueck, Dr.-Ing. Co-Founder ulrich.hueck@desertec.org www.desertec.org Frankfurt am Main June 5, 2013 Different designs exist for CSP units

More information

ASI funded Solar Thermal Storage and Steam Programs at the CSIRO and ANU

ASI funded Solar Thermal Storage and Steam Programs at the CSIRO and ANU ASI funded Solar Thermal Storage and Steam Programs at the CSIRO and ANU R. McNaughton 1, R. Benito 1, G Burgess 2, G.J. Duffy 1, J.H. Edwards 1, J.S. Kim 1, K Lovegrove 2, J Pye 2, and W. Stein 1 1 CSIRO

More information

Funded by. EU GCC CLEAN ENERGY NETWORK II Join us: Contact us:

Funded by. EU GCC CLEAN ENERGY NETWORK II Join us:   Contact us: EU GCC CLEAN ENERGY NETWORK II Join us: www.eugcc-cleanergy.net Contact us: contact@eugcc-cleanergy.net The sun as energy source The sun as energy source The sun as energy source The solar components Radiation

More information

Solar Tower Receivers. The Power to Change the World

Solar Tower Receivers. The Power to Change the World Solar Tower Receivers The Power to Change the World Solar Receiver Heliostats Hot Salt Tank Cold Salt Tank Steam Generator Steam Condensor 7 Central Tower Steam Turbine Absorber Tubes Heat Transfer Fluid

More information

Hristo Kyuchukov a b a St. Elizabet University, Bratislava, Slovakia

Hristo Kyuchukov a b a St. Elizabet University, Bratislava, Slovakia This article was downloaded by: [Hristo Kyuchukov] On: 11 October 2012, At: 22:49 Publisher: Routledge Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer

More information

Tilburg University. Published in: International Public Management Journal. Document version: Publisher's PDF, also known as Version of record

Tilburg University. Published in: International Public Management Journal. Document version: Publisher's PDF, also known as Version of record Tilburg University A Review of: Organization development: Principles, processes, performance by Gary N. McLean. [Review of the book Organization development: Principles, processes, performance, G.N. McLean,

More information

20-CSP Technologies. ECEGR 452 Renewable Energy Systems

20-CSP Technologies. ECEGR 452 Renewable Energy Systems 20-CSP Technologies ECEGR 452 Renewable Energy Systems Overview Parabolic Trough Collector (PTC) Centralized Receiver Systems (solar towers) Dish Thermal Energy Storage Hybrid Systems Dr. Louie 2 PTC Technology

More information

NREL CSP WORKSHOP. Bright Source Energy Inc. Oakland, CA

NREL CSP WORKSHOP. Bright Source Energy Inc. Oakland, CA NREL CSP WORKSHOP Central Receiver Panel Presented by Yoel Gilon Bright Source Energy Inc. Oakland, CA LUZ II Ltd. - Israel A wholly owned subsidiary of Bright Source Energy March 7, 2007 1 Bright Source

More information

NOTICE CONCERNING COPYRIGHT RESTRICTIONS

NOTICE CONCERNING COPYRIGHT RESTRICTIONS NOTICE CONCERNING COPYRIGHT RESTRICTIONS This document may contain copyrighted materials. These materials have been made available for use in research, teaching, and private study, but may not be used

More information

UNIT FOUR SOLAR COLLECTORS

UNIT FOUR SOLAR COLLECTORS ME 476 Solar Energy UNIT FOUR SOLAR COLLECTORS Concentrating Collectors Concentrating Collectors 2 For many applications it is desirable to deliver energy at temperatures higher than those possible with

More information

SIMULATION OF SOLAR THERMAL CENTRAL RECEIVER POWER PLANT AND EFFECT OF WEATHER CONDITIONS ON THERMAL POWER GENERATION

SIMULATION OF SOLAR THERMAL CENTRAL RECEIVER POWER PLANT AND EFFECT OF WEATHER CONDITIONS ON THERMAL POWER GENERATION International Journal of Mechanical Engineering and Technology (IJMET) Volume 8, Issue 2, February 217, pp. 27 33, Article ID: IJMET_8_2_4 Available online at http://www.iaeme.com/ijmet/issues.asp?jtype=ijmet&vtype=8&itype=2

More information

Design and Construction of Molten Salt Parabolic Trough HPS Project in Évora, Portugal

Design and Construction of Molten Salt Parabolic Trough HPS Project in Évora, Portugal Design and Construction of Molten Salt Parabolic Trough HPS Project in Évora, Portugal Christian Müller-Elvers 1, Michael Wittmann 2, Anne-Claire Schubert 1, Matthias Übler 1, Ralph Ernst 3, Stephan Hillebrand

More information

Guidance page for practical work 1: modeling of a thermodynamic solar plant

Guidance page for practical work 1: modeling of a thermodynamic solar plant Guidance page for practical work 1: modeling of a thermodynamic solar plant 1) Objectives of the practical work The project objective is to study the operation of thermodynamic solar plants, to show how

More information

Solar Thermal Power Generation and Its Application. Guozhu Weng

Solar Thermal Power Generation and Its Application. Guozhu Weng International Conference on Advances in Materials, Machinery, Electrical Engineering (AMMEE 2017) Solar Thermal Power Generation and Its Application Guozhu Weng Department of Power Engineering, North China

More information

CONCENTRATING SOLAR POWER, THE PANACEA TO NIGERIA S POWER SUPPLY

CONCENTRATING SOLAR POWER, THE PANACEA TO NIGERIA S POWER SUPPLY CONCENTRATING SOLAR POWER, THE PANACEA TO NIGERIA S POWER SUPPLY Idongesit Archibong, MIEEE MNSE Vice Chair, GOLD Institute of Electrical Electronics Engineers. Nigeria Concentrating Solar Power Concentrating

More information

Future Concepts in Solar Thermal Electricity Technology. Marc Röger. World Renewable Energy Congress XIV Bucharest, Romania, June 08-12, 2015

Future Concepts in Solar Thermal Electricity Technology. Marc Röger. World Renewable Energy Congress XIV Bucharest, Romania, June 08-12, 2015 Future Concepts in Solar Thermal Electricity Technology Marc Röger World Renewable Energy Congress XIV Bucharest, Romania, June 08-12, 2015 www.dlr.de Chart 2 > Future Concepts in Solar Thermal Electricity

More information

Chapter Two. The Rankine cycle. Prepared by Dr. Shatha Ammourah

Chapter Two. The Rankine cycle. Prepared by Dr. Shatha Ammourah Chapter Two The Rankine cycle Prepared by Dr. Shatha Ammourah 1 The Ideal Rankine Cycle Schematic Diagram of ideal simple Rankine 2 Superheater Economizer line 3 Heat Addition Types In The Steam Generator

More information

Prof Wikus van Niekerk Director of CRSES Prof Frank Dinter Eskom Chair in CSP Stellenbosch University

Prof Wikus van Niekerk Director of CRSES Prof Frank Dinter Eskom Chair in CSP Stellenbosch University Prof Wikus van Niekerk Director of CRSES Prof Frank Dinter Eskom Chair in CSP Stellenbosch University Fact not fiction: The true potential of concentrating solar thermal power 19/05/14 Prof JL (Wikus)

More information

A Novel LNG and Oxygen Stoichiometric Combustion Cycle without CO 2 Emission

A Novel LNG and Oxygen Stoichiometric Combustion Cycle without CO 2 Emission Proceedings of the International Gas urbine Congress 2003 okyo November 2-7, 2003 IGC2003okyo S-087 A Novel LNG and Oxygen Stoichiometric Combustion Cycle without CO 2 Emission Wei WANG, Ruixian CAI, Na

More information

FICHTNER SOLAR GmbH a company of the Fichtner group

FICHTNER SOLAR GmbH a company of the Fichtner group FICHTNER SOLAR mbh ISCC Kuraymat Integrated Solar Combined Cycle Power Plant in Egypt Paper FA4-S7 presented at 13th International Symposium on Concentrating Solar Power and Chemical Energy Technologies,

More information

CMR Journal of Engineering and Technology Vol.2 Issue.2 April, 2018

CMR Journal of Engineering and Technology Vol.2 Issue.2 April, 2018 Desalination using Concentrated solar thermal plants with thermal energy storage systems 1.0 Introduction Pavan Kumar Bhagavathula PG Student, Rhine-Waal University of Applied Sciences Kleve, Germany Desalination

More information

Solar Thermal Energy

Solar Thermal Energy Solar Thermal Energy PHYS 4400, Principles and Varieties of Solar Energy Instructor: Randy J. Ellingson The University of Toledo February 13, 2014 What is solar thermal energy? Solar thermal energy refers

More information

Draft proposals for Test methods for close-coupled solar water heating systems - Reliability and safety

Draft proposals for Test methods for close-coupled solar water heating systems - Reliability and safety IEA/SHC Task 57, Subtask B Draft proposals for new test procedures B4: Final Draft Draft proposals for Test methods for close-coupled solar water heating systems - Reliability and safety HE Zinian Beijing

More information

Chapter 10 VAPOR AND COMBINED POWER CYCLES

Chapter 10 VAPOR AND COMBINED POWER CYCLES Thermodynamics: An Engineering Approach, 6 th Edition Yunus A. Cengel, Michael A. Boles McGraw-Hill, 2008 Chapter 10 VAPOR AND COMBINED POWER CYCLES Copyright The McGraw-Hill Companies, Inc. Permission

More information

Optimization of parameters for heat recovery steam generator (HRSG) in combined cycle power plants

Optimization of parameters for heat recovery steam generator (HRSG) in combined cycle power plants Optimization of parameters for heat recovery steam generator (HRSG) in combined cycle power plants Muammer Alus, Milan V. Petrovic - Faculty of Mechanical Engineering Laboratory of Thermal Turbomachinery

More information

Solar boilers Evolving issues with an evolving technology

Solar boilers Evolving issues with an evolving technology Solar boilers Evolving issues with an evolving technology May 14, 2012 Tim Zoltowski Zurich Services Corporation Risk Engineering Introduction How is Concentrated Solar Power (CSP) used today What are

More information

Available online at ScienceDirect. Energy Procedia 81 (2015 )

Available online at   ScienceDirect. Energy Procedia 81 (2015 ) Available online at www.sciencedirect.com ScienceDirect Energy Procedia 81 (2015 ) 390 398 69th Conference of the Italian Thermal Engineering Association, ATI 2014 Optimization of solar integration in

More information

Partial Load Characteristics of the Supercritical CO2 Gas Turbine System for the Solar Thermal Power System with the Na-Al- CO2 Heat Exchanger

Partial Load Characteristics of the Supercritical CO2 Gas Turbine System for the Solar Thermal Power System with the Na-Al- CO2 Heat Exchanger The 6th International Symposium - Supercritical CO2 Power Cycles March 27 29, 2018, Pittsburgh, Pennsylvania Partial Load Characteristics of the Supercritical CO2 Gas Turbine System for the Solar Thermal

More information

OPTIMIZATION OF PARAMETERS FOR HEAT RECOVERY STEAM GENERATOR (HRSG) IN COMBINED CYCLE PLANTS

OPTIMIZATION OF PARAMETERS FOR HEAT RECOVERY STEAM GENERATOR (HRSG) IN COMBINED CYCLE PLANTS OPTIMIZATION OF PARAMETERS FOR HEAT RECOVERY STEAM GENERATOR (HRSG) IN COMBINED CYCLE PLANTS Muammer Alus, Milan V. Petrovic University of Belgrade-Faculty of Mechanical Engineering, Laboratory of Thermal

More information

Overview of Concentrating Solar Power and Research Needs

Overview of Concentrating Solar Power and Research Needs Overview of Concentrating Solar Power and Research Needs Clifford K. Ho Concentrating Solar Technologies Dept. Sandia National Laboratories Albuquerque, New Mexico ckho@sandia.gov, (505) 844-2384 SAND2016-2950

More information

Concentrated Solar Power (CSP)

Concentrated Solar Power (CSP) Concentrated Solar Power (CSP) A World Energy Solution NATIONAL BOARD MEMBERS TECHNICAL PROGRAM October 7, 2009 Steve Torkildson, P.E. Principal Engineer Concentrated Solar Power (CSP) Clean, sustainable

More information

Thermodynamic Simulation of an Advanced Hybrid Solar-Gas Seawater Desalination System

Thermodynamic Simulation of an Advanced Hybrid Solar-Gas Seawater Desalination System SolarPACES 24 Oaxaca, Mexico 12th International Symposium on October 6-8, 24 Solar Power and Chemical Energy Systems Thermodynamic Simulation of an Advanced Hybrid Solar-Gas Seawater Desalination System

More information

Simulation of the dynamic behaviour of steam turbines with Modelica

Simulation of the dynamic behaviour of steam turbines with Modelica Simulation of the dynamic behaviour of steam turbines with Modelica Juergen Birnbaum a, Markus Joecker b, Kilian Link a, Robert Pitz-Paal c, Franziska Toni a, Gerta Zimmer d a Siemens AG, Energy Sector,

More information

Available online at ScienceDirect. Energy Procedia 69 (2015 )

Available online at  ScienceDirect. Energy Procedia 69 (2015 ) Available online at www.sciencedirect.com ScienceDirect Energy Procedia 69 (2015 ) 737 747 International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2014 Economic evaluation

More information

MARAMA Webinar August 7, Angelos Kokkinos Chief Technology Officer Babcock Power, Inc.

MARAMA Webinar August 7, Angelos Kokkinos Chief Technology Officer Babcock Power, Inc. MARAMA Webinar August 7, 2014 Angelos Kokkinos Chief Technology Officer Babcock Power, Inc. Rankine cycle is a thermodynamic cycle which converts heat into work. The heat is supplied externally to a closed

More information

Heat exchangers and thermal energy storage concepts for the off-gas heat of steelmaking devices

Heat exchangers and thermal energy storage concepts for the off-gas heat of steelmaking devices Journal of Physics: Conference Series Heat exchangers and thermal energy storage concepts for the off-gas heat of steelmaking devices To cite this article: T Steinparzer et al 2012 J. Phys.: Conf. Ser.

More information

PI Heat and Thermodynamics - Course PI 25 CRITERION TEST. of each of the following a. it

PI Heat and Thermodynamics - Course PI 25 CRITERION TEST. of each of the following a. it Heat and Thermodynamics - Course PI 25 CRITERION TESTS PI 25-1 - 1. Define: heat temperature (c) enthalpy 2. State the applies to meaning water: of each of the following a. it saturation temperature subcooled

More information

FLATE Hillsborough Community College - Brandon (813)

FLATE Hillsborough Community College - Brandon (813) The Florida Advanced Technological Education (FLATE) Center wishes to make available, for educational and noncommercial purposes only, materials relevant to the EST1830 Introduction to Alternative/Renewable

More information

Thermal Performances of U Shape Molten Salt Steam Generator

Thermal Performances of U Shape Molten Salt Steam Generator Proceedings of the Asian Conference on Thermal Sciences 17, 1st ACTS March 26-, 17, Jeju Island, Korea Thermal Performances of U Shape Molten Salt Steam Generator Canming He, Jianfeng Lu*, Jing Ding *,

More information

Design Features of Combined Cycle Systems

Design Features of Combined Cycle Systems Design Features of Combined Cycle Systems 1.0 Introduction As we have discussed in class, one of the largest irreversibilities associated with simple gas turbine cycles is the high temperature exhaust.

More information

Chapter 8. Vapor Power Systems

Chapter 8. Vapor Power Systems Chapter 8 Vapor Power Systems Introducing Power Generation To meet our national power needs there are challenges related to Declining economically recoverable supplies of nonrenewable energy resources.

More information

Sustainable Energy Science and Engineering Center. Concentrating Collectors - Power Generation

Sustainable Energy Science and Engineering Center. Concentrating Collectors - Power Generation Concentrating Collectors - Power Generation Solar Dish-Engine SAIC System SAIC Dish-Sterling System in Phoenix, Arizona Source: Dish Sterling Systems - overview, Thomas Mancini, ASME Journal of Solar Energy

More information

The Study on Application of Integrated Solar Combined Cycle(ISCC) Power Generation System in Kuwait. Summary of Reports.

The Study on Application of Integrated Solar Combined Cycle(ISCC) Power Generation System in Kuwait. Summary of Reports. Commissioned by the Ministry of Economy, Trade and Industry The Study on Application of Integrated Solar Combined Cycle(ISCC) Power Generation System in Kuwait Summary of Reports January, 2008 Japan External

More information

Yokohama, Japan b School of Environmental Sciences, University of East Anglia,

Yokohama, Japan b School of Environmental Sciences, University of East Anglia, This article was downloaded by: [University of East Anglia Library], [N Keith Tovey] On: 12 March 2013, At: 14:37 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number:

More information

Advanced Thermal Energy Storing with the most efficient use of the ressources. Peter Badstue Jensen Vice President - Partner

Advanced Thermal Energy Storing with the most efficient use of the ressources. Peter Badstue Jensen Vice President - Partner Advanced Thermal Energy Storing with the most efficient use of the ressources Peter Badstue Jensen Vice President - Partner November 30, 2017 BUSINESS AREAS CSP power plant technologies Integrated Energy

More information

The Status and Prospects of CSP Technologies

The Status and Prospects of CSP Technologies International Executive Conference on Expanding the Market for Concentrating Solar Power (CSP) - Moving Opportunities into Projects 19-20 June 2002 Berlin, Germany The Status and Prospects of CSP Technologies

More information

Renewable Energy Technology MJ2411

Renewable Energy Technology MJ2411 Energy Technology EXAMINATION Renewable Energy Technology MJ2411 2015/01/14 14 00-18 00 This exam paper contains five problems. You need to attempt all these problems. Total points allocated for this examination

More information

Rankine cycle. Contents. Description

Rankine cycle. Contents. Description Page 1 of 7 Rankine cycle From Wikipedia, the free encyclopedia The Rankine cycle is a model that is used to predict the performance of steam turbine systems. The Rankine cycle is an idealized thermodynamic

More information

Published online: 13 Aug 2012.

Published online: 13 Aug 2012. This article was downloaded by: [University of Qatar] On: 26 January 2014, At: 17:18 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office:

More information

A Review On Power Generation Methods Using Concentrating Solar Power.

A Review On Power Generation Methods Using Concentrating Solar Power. IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e- ISSN: 2278-1684,p-ISSN: 2320-334X PP. 05-15 www.iosrjournals.org A Review On Power Generation Methods Using Concentrating Solar Power. 1

More information

Chapter 10 POWER CYCLES. Department of Mechanical Engineering

Chapter 10 POWER CYCLES. Department of Mechanical Engineering Chapter 10 VAPOR AND COMBINED POWER CYCLES Dr Ali Jawarneh Department of Mechanical Engineering Hashemite University it 2 Objectives Analyze vapor power cycles in which h the working fluid is alternately

More information

Full terms and conditions of use:

Full terms and conditions of use: This article was downloaded by:[g arcía-c asillas, P. E.] [G arcía-c asillas, P. E.] On: 27 March 2007 Access Details: [subscription number 773569151] Publisher: Taylor & Francis Informa Ltd Registered

More information

Professor George Stavrakakis (www.elci.tuc.gr) Dr Apostolos Apostolou(www.unitech-hellas.gr)

Professor George Stavrakakis (www.elci.tuc.gr) Dr Apostolos Apostolou(www.unitech-hellas.gr) Professor George Stavrakakis (www.elci.tuc.gr) Dr Apostolos Apostolou(www.unitech-hellas.gr) CONCENTRATED SOLAR THERMAL POWER PLANTS (CSPPS) CSPPs utilize solar thermal power to produce electricity The

More information

Low Emission Water/Steam Cycle A Contribution to Environment and Economics. Peter Mürau Dr. Michael Schöttler Siemens Power Generation, (PG) Germany

Low Emission Water/Steam Cycle A Contribution to Environment and Economics. Peter Mürau Dr. Michael Schöttler Siemens Power Generation, (PG) Germany Low Emission Water/Steam Cycle A Contribution to Environment and Economics Peter Mürau Dr. Michael Schöttler Siemens Power Generation, (PG) Germany Page 1 of 17 Abstract Avoiding emissions is a general

More information

OUTCOME 2 TUTORIAL 2 STEADY FLOW PLANT

OUTCOME 2 TUTORIAL 2 STEADY FLOW PLANT UNIT 47: Engineering Plant Technology Unit code: F/601/1433 QCF level: 5 Credit value: 15 OUTCOME 2 TUTORIAL 2 STEADY FLOW PLANT 2 Be able to apply the steady flow energy equation (SFEE) to plant and equipment

More information

Full terms and conditions of use:

Full terms and conditions of use: This article was downloaded by:[george Mason University] [George Mason University] On: 26 March 2007 Access Details: [subscription number 768492716] Publisher: Taylor & Francis Informa Ltd Registered in

More information

The standards would cover all of the current different types of systems in the STE field, as follows:

The standards would cover all of the current different types of systems in the STE field, as follows: SMB/6202/SBP STRATEGIC BUSINESS PLAN (SBP) IEC/TC OR SC: SECRETARIAT: DATE: 117 SPAIN 2017-06-29 Please ensure this form is annexed to the Report to the Standardization Management Board if it has been

More information

CSP Summit USA. San Francisco 29 January Bill Gould Chief Technical Officer Solar Reserve, LLC

CSP Summit USA. San Francisco 29 January Bill Gould Chief Technical Officer Solar Reserve, LLC CSP Summit USA San Francisco 29 January 2008 Molten Salt Power Towers Bill Gould Chief Technical Officer Solar Reserve, LLC Bill Gould, Chief Technology Officer, Solar Reserve Formerly Bechtel s Project

More information

K. Shimakawa a, K. Hayashi a, T. Kameyama a, T. Watanabe a & K. Morigaki b a Department of Electronics and Computer Engineering, Gifu

K. Shimakawa a, K. Hayashi a, T. Kameyama a, T. Watanabe a & K. Morigaki b a Department of Electronics and Computer Engineering, Gifu This article was downloaded by: [University of Cambridge] On: 01 June 2012, At: 05:11 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office:

More information

Unit 7 Overview of Solar Thermal Applications

Unit 7 Overview of Solar Thermal Applications ELTR 1223 Survey of Renewable Energy Technology Unit 7 Overview of Solar Thermal Applications REEC 120 Sustainability and Renewable Energy Source: Use Policy This material was developed by Timothy J. Wilhelm,

More information

Performance Analysis of a Solar Powered Adsorption Cooling System

Performance Analysis of a Solar Powered Adsorption Cooling System Paper ID: ET-263 Performance Analysis of a Solar Powered Adsorption Cooling System Sai Yagnamurthy 1 Dibakar Rakshit *1 Sanjeev Jain 2 1 Centre for Energy Studies, Indian Institute of Technology, Delhi-110016,

More information

From Concept to Product

From Concept to Product From Concept to Product Solar Thermal Development at the Weizmann Institute Jacob Karni Environmental & Energy Research Department Weizmann October 30, 2011 1 The Problem Solar radiation is the most abundant

More information

Jes Donneborg Executive Vice President

Jes Donneborg Executive Vice President Jes Donneborg Executive Vice President jdo@aalborgcsp.com Our Vision i Our Mission i Changing Energy accelerating the world s renewable energy transition, by making more competitive green energy solutions.

More information

Risk Assessment Techniques

Risk Assessment Techniques This article was downloaded by: [Stephen N. Luko] On: 27 May 2014, At: 08:21 Publisher: Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer

More information

The Promise of Concentrating Solar Power Technology

The Promise of Concentrating Solar Power Technology The Promise of Concentrating Solar Power Technology a Mature and Utility-Scale Renewable Peaking Power Option Eckhard Lüpfert, Robert Pitz-Paal DLR Solar Research Division, Cologne Stuttgart Almería Concentrating

More information

Case Study: Masen NOOR Ouarzazate Solar Complex

Case Study: Masen NOOR Ouarzazate Solar Complex Case Study: Masen NOOR Ouarzazate Solar Complex 25/07/2017 NOOR OUARZAZATE CSP POWER PLANTS NOOR OUARZAZATE COMPLEX Ouarzazate NOORo III Under construction 150 MW NOOR OUARZAZATE COMPLEX, A GRADUAL DEPLOYMENT

More information

AORA SOLAR S TULIP SYSTEM A HYBRID SOLAR THERMAL SOLUTION

AORA SOLAR S TULIP SYSTEM A HYBRID SOLAR THERMAL SOLUTION AORA SOLAR S TULIP SYSTEM A HYBRID SOLAR THERMAL SOLUTION COMPANY PROFILE COMPANY PROFILE AORA SOLAR commercializes its own solar thermal technology the TULIP system, based on a solar receiver heating

More information

Efficiency improvement of steam power plants in Kuwait

Efficiency improvement of steam power plants in Kuwait Energy and Sustainability V 173 Efficiency improvement of steam power plants in Kuwait H. Hussain, M. Sebzali & B. Ameer Energy and Building Research Center, Kuwait Institute for Scientific Research, Kuwait

More information

Welcome! Webinar #7: MODELLING SOLAR THERMAL SYSTEMS 27 JULY 2017

Welcome! Webinar #7: MODELLING SOLAR THERMAL SYSTEMS 27 JULY 2017 Welcome! Webinar #7: MODELLING SOLAR THERMAL SYSTEMS 27 JULY 2017 Agenda: * Introduction * Solar Components in Thermoflex-PEACE * Design Mode * Off-design simulation: controls @ operating points * Link

More information

A. the temperature of the steam at the turbine exhaust increases. B. additional moisture is removed from the steam entering the turbine.

A. the temperature of the steam at the turbine exhaust increases. B. additional moisture is removed from the steam entering the turbine. P77 Overall nuclear power plant thermal efficiency will decrease if... A. the temperature of the steam at the turbine exhaust increases. B. additional moisture is removed from the steam entering the turbine.

More information

Dimensioning a small-sized PTC solar field for heating and cooling of a hotel in Almería (Spain)

Dimensioning a small-sized PTC solar field for heating and cooling of a hotel in Almería (Spain) Available online at www.sciencedirect.com Energy Procedia 30 (2012 ) 967 973 SHC 2012 Dimensioning a small-sized PTC solar field for heating and cooling of a hotel in Almería (Spain) Manuel Quirante a,

More information

Novatec Solar s direct molten salt technology, dispatchable power to perfectly match energy demand in Northern Chile 27 th May 2014 T.

Novatec Solar s direct molten salt technology, dispatchable power to perfectly match energy demand in Northern Chile 27 th May 2014 T. Novatec Solar s direct molten salt technology, dispatchable power to perfectly match energy demand in Northern Chile 27 th May 2014 T. Stetter 1 1 Bankable Utility Scale Fresnel Technology 30 MW el Puerto

More information

Handal, Alvarenga, Recinos GRC Transactions. Volume

Handal, Alvarenga, Recinos GRC Transactions. Volume GEOTHERMAL STEAM PRODUCTION BY SOLAR ENERGY Handal, S., Alvarenga Y., Recinos, M. LaGeo, S.A. de C.V. El Salvador, Central América Keywords: Ahuachapán geothermal field, geothermal facilities, steam fraction,

More information

MODELING THERMODYNAMIC ANALYSIS AND SIMULATION OF ORGANIC RANKINE CYCLE USING GEOTHERMAL ENERGY AS HEAT SOURCE

MODELING THERMODYNAMIC ANALYSIS AND SIMULATION OF ORGANIC RANKINE CYCLE USING GEOTHERMAL ENERGY AS HEAT SOURCE MODELING THERMODYNAMIC ANALYSIS AND SIMULATION OF ORGANIC RANKINE CYCLE USING GEOTHERMAL ENERGY AS HEAT SOURCE Colak L.* and Bahadir T. *Author for correspondence Department of Mechanical Engineering,

More information

CHAPTER 1 BASIC CONCEPTS

CHAPTER 1 BASIC CONCEPTS GTU Paper Analysis CHAPTER 1 BASIC CONCEPTS Sr. No. Questions Jan 15 Jun 15 Dec 15 May 16 Jan 17 Jun 17 Nov 17 May 18 Differentiate between the followings; 1) Intensive properties and extensive properties,

More information

Solar Thermal Power Plant Technology. Workshop for Investors. New and Renewable Energy Authoriy (NREA)

Solar Thermal Power Plant Technology. Workshop for Investors. New and Renewable Energy Authoriy (NREA) Solar Thermal Power Plant Technology Workshop for Investors New and Renewable Energy Authoriy (NREA) Cairo, Egypt, 8-9 January Georg Brakmann Fichtner Solar GmbH Egypt workshop 3.ppt Nr. MW Power Production

More information

DE-TOP User s Manual. Version 2.0 Beta

DE-TOP User s Manual. Version 2.0 Beta DE-TOP User s Manual Version 2.0 Beta CONTENTS 1. INTRODUCTION... 1 1.1. DE-TOP Overview... 1 1.2. Background information... 2 2. DE-TOP OPERATION... 3 2.1. Graphical interface... 3 2.2. Power plant model...

More information

Operation Experience of a 50 MW Solar Thermal Parabolic Trough Plant in Spain

Operation Experience of a 50 MW Solar Thermal Parabolic Trough Plant in Spain Operation Experience of a 50 MW Solar Thermal Parabolic Trough Plant in Spain Frank Dinter Eskom Chair in Concentrating Solar Power (CSP) and Solar Thermal Energy Research Group (STERG), Department of

More information

SYLLABUS OF THE ONLINE COURSE ABOUT SOLAR THERMAL POWER PLANTS. TOWER, FRESNEL & DISH

SYLLABUS OF THE ONLINE COURSE ABOUT SOLAR THERMAL POWER PLANTS. TOWER, FRESNEL & DISH SYLLABUS OF THE ONLINE COURSE ABOUT SOLAR THERMAL POWER PLANTS. TOWER, FRESNEL & DISH Teacher: FRANK RODRÍGUEZ TROUWBORST I. DETAILED PROGRAM OF THE ONLINE COURSE 1. GENERAL PURPOSE: The purpose of this

More information

An Exploration of the Present and Future State of Concentrated Solar Power in the U.S. Southwest. Reber, Joseph E. 12/11/2012

An Exploration of the Present and Future State of Concentrated Solar Power in the U.S. Southwest. Reber, Joseph E. 12/11/2012 An Exploration of the Present and Future State of Concentrated Solar Power in the U.S. Southwest Reber, Joseph E. 12/11/2012 Table of Contents Abstract...1 Introduction...1 CSP Technology...2 Parabolic

More information

ScienceDirect. Thermal performance of a quartz tube solid particle air receiver

ScienceDirect. Thermal performance of a quartz tube solid particle air receiver Available online at www.sciencedirect.com ScienceDirect Energy Procedia 49 (2014 ) 284 294 SolarPACES 2013 Thermal performance of a quartz tube solid particle air receiver F. Bai a *, Y. Zhang a, X. Zhang

More information

CENTRAL RECEIVER SYSTEM (CRS) SOLAR POWER PLANT USING MOLTEN SALT AS HEAT TRANSFER FLUID

CENTRAL RECEIVER SYSTEM (CRS) SOLAR POWER PLANT USING MOLTEN SALT AS HEAT TRANSFER FLUID CENTRAL RECEIVER SYSTEM (CRS) SOLAR POWER PLANT USING MOLTEN SALT AS HEAT TRANSFER FLUID J.Ignacio Ortega (1), J.Ignacio Burgaleta (2), Félix M. Téllez (3) (1) SENER, Severo Ochoa 4, P.T.M., 28760 Tres

More information

A Review of Solar Collectors in Solar Thermal Applications

A Review of Solar Collectors in Solar Thermal Applications A Review of Solar Collectors in Solar Thermal Applications Kartik Somalwar Department of Mechanical Engineering,G.H. Raisoni College of Engineering, Nagpur, India Abstract - Thermal applications are drawing

More information

Feedwater Heaters (FWH)

Feedwater Heaters (FWH) Feedwater Heaters (FWH) A practical Regeneration process in steam power plants is accomplished by extracting or bleeding, steam from the turbine at various points. This steam, which could have produced

More information

INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY

INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY INTERNATIONAL JOURNAL OF PURE AND APPLIED RESEARCH IN ENGINEERING AND TECHNOLOGY A PATH FOR HORIZING YOUR INNOVATIVE WORK CONCENTRATED SOLAR POWER SHUBHAM MORE, NIVRUTTI UBHAD Prof. Ram Meghe Institute

More information

ScienceDirect. Experimental study of a single quartz tube solid particle air receiver

ScienceDirect. Experimental study of a single quartz tube solid particle air receiver Available online at www.sciencedirect.com ScienceDirect Energy Procedia 69 (2015 ) 600 607 International Conference on Concentrating Solar Power and Chemical Energy Systems, SolarPACES 2014 Experimental

More information

Thermal Storage for STE Plants. Markus Eck. 3 rd SFERA Summer School, Almería, June

Thermal Storage for STE Plants. Markus Eck. 3 rd SFERA Summer School, Almería, June Thermal Storage for STE Plants 3 rd SFERA Summer School, Almería, June 27-28 2012 Markus Eck German Aerospace Center Institute of Technical Thermodynamics www.dlr.de/tt slide 2 > Thermal Storage for STE

More information

PESIT Bangalore South Campus Hosur road, 1km before Electronic City, Bengaluru -100 Department of Basic Science and Humanities

PESIT Bangalore South Campus Hosur road, 1km before Electronic City, Bengaluru -100 Department of Basic Science and Humanities USN 1 P E PESIT Bangalore South Campus Hosur road, 1km before Electronic City, Bengaluru -100 Department of Basic Science and Humanities INTERNAL ASSESSMENT TEST 1 Date : 28/08/2017 Marks: 40 Subject &

More information

Receivers for Solar Tower Systems

Receivers for Solar Tower Systems Receivers for Solar Tower Systems Prof. Dr. Bernhard Hoffschmidt June 25-27, 2014 Font Romeu, France CSP Characteristics η max = η th,carnot * η absorber Parabolic Dish Solar tower systems: higher concentration

More information

Experimental Study on the Performance of Single Screw Expander with 195 mm Diameter Screw Yeqiang Zhang

Experimental Study on the Performance of Single Screw Expander with 195 mm Diameter Screw Yeqiang Zhang Experimental Study on the Performance of Single Screw Expander with 195 mm Diameter Screw Yeqiang Zhang Key Lab of Enhanced Heat Transfer & Energy Conservation of Education Ministry Key Lab of Heat Transfer

More information

Performance Optimization of Steam Power Plant through Energy and Exergy Analysis

Performance Optimization of Steam Power Plant through Energy and Exergy Analysis I NPRESSCO NTERNATIONAL PRESS CORPORATION International Journal of Current Engineering and Technology, Vol.2, No.3 (Sept. 2012) ISSN 2277-4106 Research Article Performance Optimization of Steam Power Plant

More information

DESIGN AND EXPERIMENT OF PARABOLIC TROUGH COLLECTOR WITH NORTH-SOUTH ORIENTATION

DESIGN AND EXPERIMENT OF PARABOLIC TROUGH COLLECTOR WITH NORTH-SOUTH ORIENTATION DESIGN AND EXPERIMENT OF PARABOLIC TROUGH COLLECTOR WITH NORTH-SOUTH ORIENTATION Mr. Shailesh Prajapati 1 and Mr. Dip Shah 2 1,2 Assistant Proffesor,Mechanical Enginnering Department,Institute of Technolgy

More information

PS10 Solar Power Tower. Xi Jing, Fang

PS10 Solar Power Tower. Xi Jing, Fang PS10 Solar Power Tower Xi Jing, Fang Overview Magnitudes, Cost & Technologies Project use & Social and Economic Benefits Why is it Green Project Innovations Compared to Common practice Technological,Social

More information

Available online at ScienceDirect. Energy Procedia 70 (2015 )

Available online at  ScienceDirect. Energy Procedia 70 (2015 ) Available online at www.sciencedirect.com ScienceDirect Energy Procedia 7 (215 ) 4 9 International Conference on Solar Heating and Cooling for Buildings and Industry, SHC 214 Experimental study of a parabolic

More information

Wang, E., Yu, Z., Collings, P., Zhang, H., Yang, F., and Bei, C. (2016) Thermodynamic analysis of a dual-loop organic Rankine cycle (ORC) for waste heat recovery of a petrol engine. In: Heat Powered Cycles

More information

Advanced Supercritical Carbon Dioxide Power Cycle Configurations for Use in Concentrating Solar Power Systems

Advanced Supercritical Carbon Dioxide Power Cycle Configurations for Use in Concentrating Solar Power Systems Advanced Supercritical Carbon Dioxide Power Cycle Configurations for Use in Concentrating Solar Power Systems Preprint Zhiwen Ma and Craig S. Turchi To be presented at the Supercritical CO2 Power Cycle

More information