ADVANCED CO 2 OCEAN SEQUESTRATION TECHNOLOGY FOR GLOBAL WARMING

Size: px
Start display at page:

Download "ADVANCED CO 2 OCEAN SEQUESTRATION TECHNOLOGY FOR GLOBAL WARMING"

Transcription

1 ISTP-16, 005, PRAGUE 16 TH INTERNATIONAL SYMPOSIUM ON TRANSPORT PHENOMENA ADVANCED CO OCEAN SEQUESTRATION TECHNOLOGY FOR GLOBAL WARMING Shuichiro Hirai 1*, Shohji Tsushima 1*, Ryoichi Muraoka 1*, Hisashi Sanda 1* and Masahiko Ozaki ** * Research Center for Carbon Recycling and Energy, Tokyo Institute of Technology, ** Nagasaki R & D Center, Mitsubisi Heavy Industries, Ltd. Corresponding author: hirai@mes.titech.ac.jp, phone& fax Abstract CO sequestration in the ocean would be a highly advanced countermeasure to global warming if biological impact induced by CO dissolution into ocean water is sufficiently small. Releasing liquid CO droplets from a pipe towed by a ship is effective because of dilution due to the moving release point. If liquid CO droplet sizes are controlled, dissolution into ocean water while rising up due to buoyancy, would take a long distance, which leads to vertical dilution. Dilution could be enhanced by a multi-nozzle array placed in the direction of ship width. Here we show that CO dilution could be effectively further promoted by dispersing liquid CO droplets horizontally by a turbulent wake formed by bodies placed at upper part of the multi-nozzle array. Turbulence formed at the downstream of the bodies could enlarge the width of rising liquid CO droplets by turbulent mixing between sea water and droplets. We made a measurement of flow and statistical turbulent properties needed for numerical simulation behind a body. Based on the measured data, CO enhanced dilution was simulated. Increase of partial CO pressure ( pco ) and acidification ( ph ) are drastically decreased as compared with the case without dilution. pco larger than 1000µ atm decrease to 56.1% to 10.% using the present dilution technology. 1 Introduction Modern civilization is being maintained by a large consumption of the fossil fuel, and it is being predicted that CO concentration, now at 365 ppm, would become several times larger in future, if fossil fuels are continued to burned at the present rate. Therefore, it is immediately required to take global warming measures to restrict the increase of atmospheric CO concentration. One of such measures is to increase the storage of CO in the ocean by direct artificial injection of CO removed from flue gas at fossil-fuel-fired power plants, which was first proposed by Marchetti [1]. For implementation of CO sequestration in the ocean, it is needed to suppress variation that is caused by injecting a large quantity of CO in the ocean artificially. It is acidification ( ph decrease ) and pco of increase of partial pressure of CO ( ) seawater caused by injecting CO that influences marine life in the ocean. The estimation was made by Caufield et al [] and Sato [3]. The extent of influence is strongly related to the releasing methods, which was also estimated by Caufield et al []. To release CO droplets from pipeline outlet directly introduced from power plant induces significant acidification since a large amount of CO is successively released from a fixed position of pipeline outlet. Biological impact induced by ph decrease and pco increase would be smaller by a technology to release CO droplets from a pipe of moving ship [4]. 1

2 Shuichiro Hirai, Shohji Tsushima, Ryoichi Muraoka, Hisashi Sanda, Masahiko Ozaki Released CO from towed pipe of moving ship, tip of pipe at the depth around m, dissolve in the process of rising upward due to buoyancy in the sea water. Dissolved CO in sea water is diluted due to both the motion of moving releasing point and the vertical distance that is needed for droplet dissolution. If could be further diluted using nozzle array expanded in ship-width direction. Following Sato [3], pco needs to be less than 1000µ atm considering biological impact. Dilution using three directions, 100kg/s of injected CO would cause pco that is larger than 1000µ atm to be 56% of CO dissolved seawater. Therefore, further dilution technology is now essential for implementation of CO ocean sequestration. The present paper presents a new advanced technology to further enhance dilution of CO in moving ship technology. Liquid CO droplets in rising motion due to buoyancy could be effectively dispersed in the horizontal direction (ship-width direction) by turbulent wake flow over a body placed at upper part of CO release nozzle array. We measured flow and turbulence statistics behind a body (cylinder),which would be useful covering wide various conditions, i.e., wide range of Reynolds number. The measured data are employed for a simulation of turbulent mixing between CO droplets and seawater. Decrease of ph ( ph ) and increase of pco ( pco) are quantitatively estimated to be sufficiently small. pco larger than1000µ atm reduces to 10.%. by dispersing liquid CO droplets horizontally by a turbulent wake formed by bodies placed at upper part of the multi-nozzle array. It is schematically show in Fig.1. In Fig.1, cylinders are employed for a typical shape of the bodies. CO droplets are released from nozzle array and rise upward. Turbulent wake is formed by cylinders at the upper part of nozzle array and the droplets encounter turbulent wake (A-1 and A-) where they are dispersed in horizontal (ship width) direction by an intensive turbulent mixing of wake. Because CO droplet rise speed is small, approximately 0.1m/s, and ship speed is large, 3m/s, distance between cylinders and droplets become large and wake effect becomes small rapidly, so next wake (B-1 and B-), cylinders to form wakes are positioned downstream than (A-1 and A-), to enhance dilution. Therefore, turbulence formed at the downstream of the bodies could successively enlarge the width of rising liquid CO droplets by turbulent mixing between seawater and droplets. In order to estimate the present dilution technology quantitatively and precisely, we made an experiment and numerical simulation. 3 Experimental Methods and Results Although, turbulent mixing behind cylinders plays a key role on horizontal dispersion of released CO, it is known that drag coefficient over the critical Reynolds number An Advanced Technology for CO Dilution We propose a new advanced technology to enhanced CO dilution of moving ship. In addition to two dilution effects, one in the ship direction by the moving release point and the other in the vertical direction by controlling releasing size of CO droplet to obtain large distance for dissolution, dilution could be enhanced by a multi-nozzle array placed in the direction of ship width. We propose that CO dilution could be effectively further promoted Figure 1. Schematic view of the present advanced technology to enhance CO dilution

3 ADVANCED CO OCEAN SEQUESTRATION TECHNOLOGY FOR GLOBAL WARMING (Re=350,000) sharply decreases. Reynolds number (Re) is defined as Re U d ship cyl = (1) ν sea When we use the ship speed U = 3 m/ s, diameter of cylinder d = 0.m, ship Re equals to critical Reynolds number. Turbulent flow over the cylinder might in the range, below and over the critical Reynolds number depending on the cylinder diameter. However, flow characteristics and turbulent properties that are vital for prediction of CO droplet dispersion are not fully investigated in detail. Therefore, it is needed to characterize turbulent flow fields below and over the critical Reynolds number. Re number, especially over 350,000 is a high Reynolds number flow and, it is by no means of ease to construct experimental apparatus because of its handling. We constructed laboratory-scaled experimental apparatus to carry out measurements under the condition of Reynolds number of which were 70,000 and 500,000, below and over critical Reynolds number 350,000, respectively. We measured statistical turbulent properties by applying time-resolved particle image velocimetry (PIV). Figure shows an experimental apparatus we constructed together with an applied measurement system. The apparatus consists of cyl a square reservoir tank and a receiver tank. In the test section with 0.5m square channel, a circular cylinder with 0.1m in diameter was assembled. Once a gate is opened, reserved 3 water with volume of about 3m starts to fall and is accelerated by gravity force. In the case of Re number equals to 70,000, we equipped a resistance at the outlet of the test section to control the flow rate. Visualization and PIV results of Re = 500,000 and 70,000 are depicted in Fig. 3 and Fig. 4, respectively. In the experiments, nylon particles, averaged diameter of which is about 30 particle was illuminated by laser light sheet emitted from an Ar-ion laser and motion of illuminated particle was captured by high-speed CCD camera with frame rate of 1000 (frames/sec) after amplifying scattered light intensity by an image intensifier with shuttering speed of 50 µ s. The visualization results ((Fig. (a) Visualized flow field (b) Instantaneous velocity vectors Figure 3. Visualization of turbulent flow over a cylinder and its PIV results (Re=500,000). Figure. Experimental apparatus and measuring system of turbulent wake over a cylinder. (a) Visualized flow field (b) Instantaneous velocity vectors Figure 4. Visualization of turbulent flow over a cylinder and its PIV results (Re=70,000). 3

4 Shuichiro Hirai, Shohji Tsushima, Ryoichi Muraoka, Hisashi Sanda, Masahiko Ozaki 3 (a), Fig. 4 (a)) are analyzed to get instantaneous velocity field ((Fig. 3 (b), Fig. 4 (b)). As shown in an instantaneous velocity field (Fig. 3 (b)) in the case of Re = 500,000, zigzag motion of turbulent flow associated with vortex shedding is packed into narrow region behind the cylinder. On the other hand, in the case of Re = 70,000, relatively large vortex and wide zigzag motion of the flow can be recognized (Fig. 4 (b)). This distinct difference observed between their flow patterns leads to difference on turbulent properties as the followings. To examine turbulent properties in detail, we measured profiles of mean velocity and relative turbulent intensities from time-resolved PIV results. Turbulent properties measured at the downstream of 1.5 times of the cylinder diameter (x/d=1.5) are shown in Fig. 5 for both Reynolds numbers. As shown in Fig. 5 (a), width of wake in case of Re=500,000 is narrow as much as the cylinder diameter. On the other hand, in case of Re=70,000, wake width is twice as much as the cylinder diameter. Furthermore, turbulent intensities normalized by surrounding flow velocity along main flow and transversal directions were also very distinctive as shown in Fig. 5 (b) and 5 (c). Relative turbulent intensities in case of Re=500,000 are weaker than the ones Re=70,000 in both direction. These differences between the two Reynolds number flows must be explained from the flow visualization results shown in Fig. 3 and Fig. 4. Compared the flow pattern with Re = 500,000 with 70,000, size of vortex and zigzag motion of the flow is distinctively different each other. In the case of Re = 500,000, vortex marching is limited to narrow region behind the cylinder and vortex size seems to be small compared to the one in the intermediate Reynolds number flow. The data presented in Fig.5 could be used for the turbulent mixing simulation covering below and over critical Reynolds number. (a) Mean velocity profiles (c) relative turbulent intensity of transversal component (b) relative turbulent intensity of main (d) Reynolds shear stress flow component Figure 5. Turbulent properties measured at x/d=1.5 4

5 ADVANCED CO OCEAN SEQUESTRATION TECHNOLOGY FOR GLOBAL WARMING 4 Calculation Method Calculation Method of CO dissolution for both cases, with and without dilution by wake is presented in this section. Firstly, dissolution behavior of a single droplet covered with hydrate is presented. The dissolution behavior of liquid CO droplets is described by the relation d ( ρco V) dt ( C ) = ka C () 0 The measured surface concentration C0 of hydrate-covered CO droplet, which prescribes and determines dissolution rate due to the existence of hydrate, was employed [5]. The mass transfer coefficient k in eq () for high Schmidt number flows satisfies the relation [6]. ( ) Sh= 1+ Sc+ 1/ Re 0.75Re (3) Here, ρco is the liquid CO density, V and A are the volume and surface area of a liquid CO droplet, respectively, C 0 and C are, respectively, the surface concentration at the CO droplet and the concentration at infinity; the Sherwood number is Sh= kd / D, the Reynolds number is Re= ud / CO ν, the Schmidt number is Sc = ν / D,ν is the kinematic viscosity, u the velocity, dco the CO droplet diameter, and D the diffusion coefficient. Introducing the coordinate z that represents the vertical distance from the release point, we obtain from Eq. () ( CO) ( 0 ) ( ) d ρco CO dd kc C d = (4) dz u ρ dz 3ρ z CO CO The rise velocity u z was estimated using the following equation, u z = 4d ( ρ ρ ) CO sea CO 3C D ρ sea g CO D ( )/ ( 1,000, ) 0.5 ( ) ( ) C = + Re Re Re < C = / Re Re < 10,000. (5) D In the case of without dilution using turbulent mixing behind the cylinders, CO droplets rise upward keeping the same width set by the nozzle array. We obtained quantitative CO dissolution behavior by solving eq. (4) with boundary conditions, i.e., released droplet size. As for the dissolution behavior of a CO droplet that rise upward in the wake region it is described as follows. Number density of CO droplets C along with velocity fields are solved with the dissolution of a single droplet. The calculation in the wake region is based on the time-averaged conservation equations of mass, momentum and CO droplet number density in which boundary layer approximation is applied. The basic equations are U V ρ + = 0 x y ( ρ ) U U p ρ U + V = uv x y x y C C ρ U + V = ρvc x y y (6) (7) (8) where xy, are the coordinates in the flow, perpendicular to flow directions, respectively. UVand, uvare, the time-mean and fluctuating velocity components in the xy, directions, respectively. ρ is the fluid density, p the pressure. ( ) denotes the time average. The correlations of velocity fluctuations in equation (7), (8), are evaluated from the turbulence models. The turbulence models applied to the present calculations is the k ε two equation model. In the k ε two equation model, kinetic energy of turbulence k and its dissipation rate ε are calculated from the following transport equations[7]. 5

6 Shuichiro Hirai, Shohji Tsushima, Ryoichi Muraoka, Hisashi Sanda, Masahiko Ozaki k k µ k U U V x y y y y T ρ + = µ + + µ T σk 0.5 k ρε µ y ε ε µ T ε ρ U + V = µ + x y y σ ε y ε U C + µ ε Cε1 T k y k ρε (9) µµ T U + 0 (10) ρ y The turbulent viscosity µ t is determined from the relation, µ t = ρc f k µ µ / ε (11) { ( )} fµ = exp.5/1 + R t /50 (1) The empirical constants in equations (9)-(11) are adopted from Jones and Launder (1973), and are listed as follows. C µ = 0.09, C ε 1 = 1.45, C ε = 1.95, σ k = 1.0, σ = 1.3. The terms ρ uv and ρ vc in equation (7) and (8) are modeled by the turbulent viscosity as 5 Estimation of the Present Dilution Technology We simulated a case in which 100 kg/s of liquid CO is released from the pipe towed by a moving ship at the depth of 1500m. The ship is assumed to move at a speed of 6 knots (3.09m/s) which is now considered to be a maximum ship speed. The released CO droplets are assumed to disperse in 10m width at the releasing point by multi-nozzle array for both cases with and without dilution of the present method. Dissolved CO follows the reactions, between carbonic acid ( ) 3 HCO, bicarbonate ion ( HCO 3 ) and carbonate ion ( CO 3 ) with the hydrogen ions ( H + ) in seawater: ph and pco were calculated under these conditions. CO + HO HCO 3 (15) HCO H + HCO (16) HCO H + CO (17) Fig.6 shows the two-dimensional contour profiles of pco in cross section vertical to ship moving direction. CO droplets of 1.5cm diameter released at 1500m depth, could travel U ρ uv = µ t y (13) C ρ vc = µ t y (14) Ukε,, are given at the cross section 1.5 diameter downstream from the cylinder using the measured data presented in Fig.5. Initial (upstream) condition of C is given by the width of nozzle array. Because equations (7)-(10) are boundary-layer type, they are solved downstream. (a) without dilution (b) with dilution Figure 6. Two-dimensional contour profiles of pco 6

7 ADVANCED CO OCEAN SEQUESTRATION TECHNOLOGY FOR GLOBAL WARMING distance of 84m (top of the figure) in both cases. In the case of dilution, we simulated the case that 6 cylinders of 0.m in diameter and.5m in length are placed in 0 sections (Fig. 1 depict the case of cylinders placed in sections). 0.m is the largest diameter to use large turbulence intensities (below critical Reynolds number) depicted in Fig.5. Dilution induced by turbulent wake of multi-cylinders are noted as dilution zone in Fig.6. Because pco profiles are symmetric with respect to the vertical line on the center of the nozzle arrays, the area of blocked line in Fig.1 is depicted in the figure. 5m depicted in the figure is the position of half-width of nozzle array. For the case without active dilution, CO droplets rises upward straightly, so pco shows an stripe-like profile. Large pco at the deep region originates in the fact that CO droplet size is large that leads to large amount of CO dissolution. In the case of with active dilution, CO droplets would disperse in ship width direction, so pco becomes diffusive profiles. It can be seen from the figure that the active dilution effect is distinctive. Two-dimensional contour profiles of ph is depicted in Fig.7 for both cases with and without dilution. Acidification is also drastically reduced by the present dilution technology. Figs. 6 and 7 demonstrates that dilution is effective but could not directly make an quantitative estimation, since Sato s data (004) depicts biological impact as function of pco and exposure time. Figs. 8 and 9 show probability density function (p.d.f.) of pco and ph, respectively. We can see from these figure the extent of CO dissolution effect on pco and ph. For example, if we want to know volume rate that pco larger than 1000µ atm adding the plots those are larger than 1000µ atm leads to 56.1% for without dilution and 10.% for with dilution. Biological impact data (Sato, 004) show that biological impact would be negligibly small under the condition of pco less than several hundreds µ atm (less than 1000µ atm ). Therefore present advanced technology reduces volume rate of CO Figure 8. Probability density function (p.d.f.) of pco (a) without dilution (b) with dilution Figure 7. Two-dimensional contour profiles of ph Figure 9. Probability density function (p.d.f.) of ph 7

8 Shuichiro Hirai, Shohji Tsushima, Ryoichi Muraoka, Hisashi Sanda, Masahiko Ozaki dissolved water of less than 1000µ atm from 56.1% to 10.%. If we use a criteria of 500µ atm, present technology reduces volume rate from 84.0% to 43.%. 6 Concluding Remarks The present paper reports a new advanced technology of CO sequestration in the ocean that CO would be effectively diluted to drastically reduce biological impact. It is based on the moving ship technology to dilute CO by (1) moving release point, () vertical distance by controlling droplet size and (3) nozzle array system. Further dilution could be achieved by the present technology that applies turbulent wake active dispersion of CO droplet. Before making the simulation, experiment of flow over cylinder was made to obtain valuable data, i,e., turbulence statistics, to make the simulation correct. We used cylinders to form turbulent wake due to the reason that turbulent statistics are fundamental and simple to use (only Reynolds number is the parameter). But if we use other body, like a flat plate placed vertical to ship direction and its drag coefficient is larger than that of cylinder, turbulent mixing would be further enhanced and dilution promoted. Because CO droplets released from nozzle initially dispersed (near the nozzle, not at shallow depth), droplets rise upward keeping the dispersed profile. So length of the bodies to form wake need not be long so it would not be a drag to drive ship. The present paper shows a concept to further dilution of CO. Size, position and numbers of the bodies are not optimized sufficiently, so it is expected that further study could promote further dilution. References [1] Marchetti, C., 1977, Climate Change, Vol. 1: [] Caulfield, J. A., Auerbach, D. I., Adams, E. E. and Herzog, H. J., 1997, Energy Convers. Mgmt, Vol. 38: [3] Sato, T J. Oceanography, in print. [4] Nakashiki, N., Ohsumi, T. and Katano, N., 1995, "Technical View on CO Transportation onto the Deep Ocean Floor and Dispersion at Intermediate Depths", Direct Ocean Disposal of Carbon Dioxide, N. Handa and T. Ohsumi, eds. Tokyo; Terrapub: [5] Hirai, S., Okazaki, K., Tabe, Y., Hijikata, K. and Mori, Y., 1997, Energy Int. J., Vol., No. /3: [6] Clift, R., Grace, J. R. and Weber, M. E., 1978, "Bubbles, Drops and Particles", Academic Press, New York. [7] Jones, W. P. and Launder, B. E Int. J. Heat Mass Transfer Vol.16: Acknowledgement The authors would like to express our thanks that a part of this work was supported by RITE (Research Institute of Innovative Technology for the Earth). 8

Dr. J. Wolters. FZJ-ZAT-379 January Forschungszentrum Jülich GmbH, FZJ

Dr. J. Wolters. FZJ-ZAT-379 January Forschungszentrum Jülich GmbH, FZJ Forschungszentrum Jülich GmbH, FZJ ZAT-Report FZJ-ZAT-379 January 2003 Benchmark Activity on Natural Convection Heat Transfer Enhancement in Mercury with Gas Injection authors Dr. J. Wolters abstract A

More information

Visualization of the tip vortices in a wind turbine wake

Visualization of the tip vortices in a wind turbine wake J Vis (2012) 15:39 44 DOI 10.1007/s12650-011-0112-z SHORT PAPER Zifeng Yang Partha Sarkar Hui Hu Visualization of the tip vortices in a wind turbine wake Received: 30 December 2010 / Revised: 19 September

More information

Measurement of Turbulence in Pressurized Pipe Flow Using Particle Image Velocimetry

Measurement of Turbulence in Pressurized Pipe Flow Using Particle Image Velocimetry Utah State University DigitalCommons@USU International Junior Researcher and Engineer Workshop on Hydraulic Structures Jun 17th, 12:00 AM - Jun 20th, 12:00 AM Measurement of Turbulence in Pressurized Pipe

More information

Numerical Simulation of the Flue Gas Desulfurization in the Sieve Tray Tower

Numerical Simulation of the Flue Gas Desulfurization in the Sieve Tray Tower 52 China Steel Technical Report, No. Numerical 28, pp.52-57, Simulation (2015) of the Flue Gas Desulfurization in the Sieve Tray Tower Numerical Simulation of the Flue Gas Desulfurization in the Sieve

More information

CFD Analysis of a Mixture Flow in a Producer Gas Carburetor for optimizing the design configuration

CFD Analysis of a Mixture Flow in a Producer Gas Carburetor for optimizing the design configuration CFD Analysis of a Mixture Flow in a Producer Gas Carburetor for optimizing the design configuration T.R.Ani1 l, S.D.Ravi 2, M.Shashikanth 2, P.G.Tewari 3 and N.K.S.Rajan 4 l Research student, and Assistant

More information

INVESTIGATIONS ON PERFORMANCE OF A SAVONIUS HYDROKINETIC TURBINE

INVESTIGATIONS ON PERFORMANCE OF A SAVONIUS HYDROKINETIC TURBINE INVESTIGATIONS ON PERFORMANCE OF A SAVONIUS HYDROKINETIC TURBINE Ph.D. THESIS by ANUJ KUMAR ALTERNATE HYDRO ENERGY CENTRE INDIAN INSTITUTE OF TECHNOLOGY ROORKEE ROORKEE-247667 (INDIA) AUGUST, 2017 INVESTIGATIONS

More information

Experimental Validation of a Computational Fluid Dynamics Model for IAQ applications in Ice Rink Arenas

Experimental Validation of a Computational Fluid Dynamics Model for IAQ applications in Ice Rink Arenas Yang, C., Demokritou, P., Chen Q., and Spengler, J. 2001. Experimental validation of a computational fluid dynamics model for IAQ applications in ice rink arenas, Indoor Air, 11(2), 120-126. Experimental

More information

CFD on Small Flow Injection of Advanced Accumulator in APWR

CFD on Small Flow Injection of Advanced Accumulator in APWR 54 CFD on Small Flow Injection of Advanced Accumulator in APWR TOMOSHIGE TAKATA TAKAFUMI OGINO TAKASHI ISHIBASHI TADASHI SHIRAISHI The advanced accumulator in the advanced pressurized-water reactor is

More information

Appendix. Liquid Wall Science in other Scientific Pursuits and Applications

Appendix. Liquid Wall Science in other Scientific Pursuits and Applications Appendix Liquid Wall Science in other Scientific Pursuits and Applications Liquid Wall Science is important in many scientific pursuits and applications Liquid Jet and Film Stability and Dynamics: fuel

More information

MODELING OF REOXIDATION INCLUSION FORMATION IN STEEL SAND CASTING

MODELING OF REOXIDATION INCLUSION FORMATION IN STEEL SAND CASTING MODELING OF REOXIDATION INCLUSION FORMATION IN STEEL SAND CASTING A.J. Melendez 1, K.D. Carlson 1, C. Beckermann 1, M.C. Schneider 2 1 Dep. Mechanical and Industrial Engineering, University of Iowa, Iowa

More information

Woodside Energy Ltd, Perth, AUSTRALIA.

Woodside Energy Ltd, Perth, AUSTRALIA. Comparing CFD and CORMIX for Buoyant Wastewater Near-Field Dispersion Modeling Simon Mortensen 1, Carl Jackson 2, Ole Petersen 3 and Geoff Wake 4 1 DHI Water & Environment, Gold Coast, AUSTRALIA, email:

More information

CFD model of an aerating hydrofoil

CFD model of an aerating hydrofoil IOP Conference Series: Earth and Environmental Science OPEN ACCESS CFD model of an aerating hydrofoil To cite this article: D Scott et al 214 IOP Conf. Ser.: Earth Environ. Sci. 22 628 View the article

More information

INVESTIGATION OF SUPERHEATED LIQUID CARBON DIOXIDE JETS FOR CUTTING APPLICATIONS

INVESTIGATION OF SUPERHEATED LIQUID CARBON DIOXIDE JETS FOR CUTTING APPLICATIONS INVESTIGATION OF SUPERHEATED LIQUID CARBON DIOXIDE JETS FOR CUTTING APPLICATIONS L. Engelmeier, S. Pollak*, E. Weidner Chair of Particle Technology, Ruhr-University Bochum Universitätsstraße 150, 44801

More information

Erik Lindeberg and Per Bergmo. SINTEF Petroleum Research, NO-7465 Trondheim, Norway

Erik Lindeberg and Per Bergmo. SINTEF Petroleum Research, NO-7465 Trondheim, Norway THE LONG-TERM FATE OF CO 2 INJECTED INTO AN AQUIFER Erik Lindeberg and Per Bergmo SINTEF Petroleum Research, NO-7465 Trondheim, Norway ABSTRACT Assuming that an underground aquifer is capped by a capillary

More information

Visualization of Unsteady Behavior of Cavitation in Circular Cylindrical Orifice with Abruptly Expanding Part

Visualization of Unsteady Behavior of Cavitation in Circular Cylindrical Orifice with Abruptly Expanding Part Visualization of Unsteady Behavior of Cavitation in Circular Cylindrical Orifice with Abruptly Expanding Part Yasuhiro Sugimoto and Keiichi Sato Kanazawa Institute of Technology 7-1 Oogigaoka, Nonoichi-machi,

More information

Simulazione. Numerical Simulation of Magnetic Field and Flow Control in Mold with Vertical Combination Electromagnetic Brake

Simulazione. Numerical Simulation of Magnetic Field and Flow Control in Mold with Vertical Combination Electromagnetic Brake Numerical Simulation of Magnetic Field and Flow Control in Mold with Vertical Combination Electromagnetic Brake F. Li, E. Wang, M. Feng VC-EMBr (vertical combination electromagnetic Brake) technology which

More information

CFD Modelling of an Aerosol Exposure Chamber for Medical Studies G. Manenti, M. Derudi, G. Nano, R. Rota

CFD Modelling of an Aerosol Exposure Chamber for Medical Studies G. Manenti, M. Derudi, G. Nano, R. Rota CFD Modelling of an Aerosol Exposure Chamber for Medical Studies G. Manenti, M. Derudi, G. Nano, R. Rota Dip. di Chimica, Materiali e Ingegneria Chimica G. Natta, Politecnico di Milano, via Mancinelli

More information

Numerical and Experimental Modeling of Producer Gas Carburettor

Numerical and Experimental Modeling of Producer Gas Carburettor Numerical and Experimental Modeling of Producer Gas Carburettor S.S.Vinay l, S.D.Ravi 2, G PremaKumar 3 and N.K.S.Rajan 4 l M.E Student, Bangalore University, Bangalore. 2 Project Assistant, CGPL, Dept

More information

Computational Fluid Dynamics (CFD) Simulations of Dispersed Flow of Viscous Oil in Water in a Horizontal Pipe

Computational Fluid Dynamics (CFD) Simulations of Dispersed Flow of Viscous Oil in Water in a Horizontal Pipe Computational Fluid Dynamics (CFD) Simulations of Dispersed Flow of Viscous Oil in Water in a Horizontal Pipe *Robin Yap Miao Sin, Cary K Turangan Institute of High Performance Computing, 1 Fusionopolis

More information

Application of Particle Image Velocimetry in Hydraulic Engineering Research. Michael Horst, Ph.D., P.E., ASCE 1

Application of Particle Image Velocimetry in Hydraulic Engineering Research. Michael Horst, Ph.D., P.E., ASCE 1 Application of Particle Image Velocimetry in Hydraulic Engineering Research Michael Horst, Ph.D., P.E., ASCE 1 Particle Image Velocimetry (PIV) is a non-intrusive method used for ascertaining hydraulic

More information

Open Channel Flow. Ch 10 Young, Handouts

Open Channel Flow. Ch 10 Young, Handouts Open Channel Flow Ch 10 Young, Handouts Introduction Many Civil & Environmental engineering flows have a free surface open to the atmosphere Rivers, streams and reservoirs Flow in partially filled pipes

More information

Designing Low Impact Wastewater Discharge from Solar Distillation Site to Sea

Designing Low Impact Wastewater Discharge from Solar Distillation Site to Sea Environmental Resources Research Vol. 4, No. 2, 2016 GUASNR Designing Low Impact Wastewater Discharge from Solar Distillation Site to Sea M. Nezhad Naderi 1*, E. Hadipour 2 1 Asisstant Professor, Department

More information

Spray Characteristics of Prefilming Type of Airblast Atomizer

Spray Characteristics of Prefilming Type of Airblast Atomizer ICLASS 1, 1 th Triennial International Conference on Liquid Atomization and Spray Systems, Heidelberg, Germany, September 6, 1 Spray Characteristics of Prefilming Type of Airblast Atomizer T. Inamura*,

More information

NUMERICAL STUDY ON FILM COOLING AND CONVECTIVE HEAT TRANSFER CHARACTERISTICS IN THE CUTBACK REGION OF TURBINE BLADE TRAILING EDGE

NUMERICAL STUDY ON FILM COOLING AND CONVECTIVE HEAT TRANSFER CHARACTERISTICS IN THE CUTBACK REGION OF TURBINE BLADE TRAILING EDGE S643 NUMERICAL STUDY ON FILM COOLING AND CONVECTIVE HEAT TRANSFER CHARACTERISTICS IN THE CUTBACK REGION OF TURBINE BLADE TRAILING EDGE by Yong-Hui XIE *, Dong-Ting YE, and Zhong-Yang SHEN School of Energy

More information

Numerical modelling of shielding gas flow and heat transfer in laser welding process

Numerical modelling of shielding gas flow and heat transfer in laser welding process Numerical modelling of shielding gas flow and heat transfer in laser welding process Alireza Javidi Shirvan 1, Isabelle Choquet 1, Håkan Nilsson 2 1 University West, Department of Engineering Science,

More information

VALLIAMMAI ENGINEERING COLLEGE DEPARTMENT OF MECHANICAL ENGINEERING CE6451-FLUID MECHANICS AND MACHINERY UNIT- I: FLUID PROPERTIES AND FLOW CHARACTERISTICS PART-A 1. Find the surface tension in a soap

More information

SLUDGE TREATMENT USING GAS-LIQUID TWO-PHASE SWIRLING JET AND OZONE

SLUDGE TREATMENT USING GAS-LIQUID TWO-PHASE SWIRLING JET AND OZONE ISTP-6, 5, PRAGUE 6 TH INTERNATIONAL SYMPOSIUM ON TRANSPORT PHENOMENA SLUDGE TREATMENT USING GAS-LIQUID Moriyoshi Shitara *, Manabu Iguchi **, and Taku Tamamori * *Huens Co., Ltd., Obihiro, Hokkaido 8-8,

More information

Simulation of Flameless Combustion of Natural Gas in a Laboratory Scale Furnace

Simulation of Flameless Combustion of Natural Gas in a Laboratory Scale Furnace Turkish J. Eng. Env. Sci. 30 (2006), 135 143. c TÜBİTAK Simulation of Flameless Combustion of Natural Gas in a Laboratory Scale Furnace Sébastien MURER, Barbara PESENTI and Paul LYBAERT Thermal Engineering

More information

6.5 THE INFLUENCE OF OBSTACLES ON THE FLOW AND POLLUTANT DISPERSION IN AN URBAN ENVIRONMENT

6.5 THE INFLUENCE OF OBSTACLES ON THE FLOW AND POLLUTANT DISPERSION IN AN URBAN ENVIRONMENT 6.5 THE NFLUENCE OF OBSTACLES ON THE FLOW AND POLLUTANT DSPERSON N AN URBAN ENVRONMENT Mohamed F. Yassin a, *, Masaaki Ohba b, Hideyuki Tanaka b a Faculty of Engineering, Assiut University, Assiut, Egypt

More information

Tereah J. Hendricks IN SITU MEASUREMENTS OF INITIAL DILUTION

Tereah J. Hendricks IN SITU MEASUREMENTS OF INITIAL DILUTION Tereah J. Hendricks IN SITU MEASUREMENTS OF INITIAL DILUTION During the past year, the Project participated in studies of initial dilution processes at the four major ocean outfalls in the southern California

More information

HORIZONTAL SHELL SIDE FLUIDIZED BED HEAT EXCHANGER, DESIGN CONSIDERATIONS AND EXPERIENCES FROM A PILOT UNIT

HORIZONTAL SHELL SIDE FLUIDIZED BED HEAT EXCHANGER, DESIGN CONSIDERATIONS AND EXPERIENCES FROM A PILOT UNIT HORIZONTAL SHELL SIDE FLUIDIZED BED HEAT EXCHANGER, DESIGN CONSIDERATIONS AND EXPERIENCES FROM A PILOT UNIT M.C. van Beek 1, M. Cancela Vallespin 1, 1 Klaren International, Hanzeweg 35N, 3771 NG, Barneveld,

More information

Effect of air flowrate on particle velocity profile in a circulating fluidized bed

Effect of air flowrate on particle velocity profile in a circulating fluidized bed Korean J. Chem. Eng., 24(5), 851-855 (2007) SHORT COMMUNICATION Effect of air flowrate on particle velocity profile in a circulating fluidized bed Sansanee Kumthanasup and Suchaya Nitivattananon Fuel Research

More information

Particle Injection and Mixing Experiments in a One Quarter Scale Model Bubbling Fluidized Bed

Particle Injection and Mixing Experiments in a One Quarter Scale Model Bubbling Fluidized Bed Particle Injection and Mixing Experiments in a One Quarter Scale Model Bubbling Fluidized Bed Leon Glicksman, Ezra Carr and Peter Noymer Massachusetts Institute of Technology Abstract One significant factor

More information

A three-dimensional numerical model of air pollutant dispersion

A three-dimensional numerical model of air pollutant dispersion Air Pollution XIII 39 A three-dimensional numerical model of air pollutant dispersion K. Kaminski, W. Kaminski & J. Petera Faculty of Process and Environmental Engineering, Technical University of Lodz,

More information

A New Analytical Approach to Improving the Aerodynamic Performance of the Gyromill Wind Turbine

A New Analytical Approach to Improving the Aerodynamic Performance of the Gyromill Wind Turbine A New Analytical Approach to Improving the Aerodynamic Performance of the Gyromill Wind Turbine Eiji Ejiri 1,*, Tomoya Iwadate 2 1 Department of Mechanical Science and Engineering, Chiba Institute of Technology,

More information

H POLLUTANT DISPERSION OVER TWO-DIMENSIONAL IDEALIZED STREET CANYONS: A LARGE-EDDY SIMULATION APPROACH. Colman C.C. Wong and Chun-Ho Liu*

H POLLUTANT DISPERSION OVER TWO-DIMENSIONAL IDEALIZED STREET CANYONS: A LARGE-EDDY SIMULATION APPROACH. Colman C.C. Wong and Chun-Ho Liu* H14-117 POLLUTANT DISPERSION OVER TWO-DIMENSIONAL IDEALIZED STREET CANYONS: A LARGE-EDDY SIMULATION APPROACH Colman C.C. Wong and Chun-Ho Liu* Department of Mechanical Engineering, The University of Hong

More information

3D JET FLOW BEHAVIOUR AROUND A PILE IN A SCOUR HOLE

3D JET FLOW BEHAVIOUR AROUND A PILE IN A SCOUR HOLE Thirteenth International Water Technology Conference, IWTC 13 2009, Hurghada, Egypt 911 3D JET FLOW BEHAVIOUR AROUND A PILE IN A SCOUR HOLE Aye YÜKSEL OZAN * and Yalçın YÜKSEL ** Yildiz Technical University,

More information

Numerical analysis of eccentric orifice plate using ANSYS Fluent software

Numerical analysis of eccentric orifice plate using ANSYS Fluent software IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Numerical analysis of eccentric orifice plate using ANSYS Fluent software To cite this article: D Zahariea 2016 IOP Conf. Ser.:

More information

Thermal Management of Densely-packed EV Battery Set

Thermal Management of Densely-packed EV Battery Set EVS28 KINTEX, Korea, May 3-6, 2015 Thermal Management of Densely-packed EV Battery Set Abstract Z. Lu 1, X.Z. Meng 1, W.Y. Hu 2, L.C. Wei 3, L.Y. Zhang 1, L.W. Jin 1* 1 Building Environment and Equipment

More information

EFFECT OF COMBINED HOLE CONFIGURATION ON FILM COOLING WITH AND WITHOUT MIST INJECTION

EFFECT OF COMBINED HOLE CONFIGURATION ON FILM COOLING WITH AND WITHOUT MIST INJECTION THERMAL SCIENCE: Year 2018, Vol. 22, No. 5, pp. 1923-1931 1923 EFFECT OF COMBINED HOLE CONFIGURATION ON FILM COOLING WITH AND WITHOUT MIST INJECTION by Ke TIAN a, Jin WANG a*, Chao LIU a, Jakov BALETA

More information

OINTRODUCTION. Technology Overview for Oil Services Companies: Using Flow Modeling to Lower Costs, Increase Reliability, and Reduce Risks

OINTRODUCTION. Technology Overview for Oil Services Companies: Using Flow Modeling to Lower Costs, Increase Reliability, and Reduce Risks W H I T E P A P E R - 1 1 9 Technology Overview for Oil Services Companies: Using Flow Modeling to Lower Costs, Increase Reliability, and Reduce Risks David Schowalter, PhD, ANSYS, Inc. OINTRODUCTION Oil

More information

Investigating Two Configurations of a Heat Exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System

Investigating Two Configurations of a Heat Exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System Journal of Energy and Power Engineering 7 (2013) 66-73 D DAVID PUBLISHING Investigating Two Configurations of a Heat Exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System

More information

PERFORMANCE ANALYSIS OF NATURAL DRAFT WET COOLING TOWER AT OPTIMIZED INJECTION HEIGHT

PERFORMANCE ANALYSIS OF NATURAL DRAFT WET COOLING TOWER AT OPTIMIZED INJECTION HEIGHT PERFORMANCE ANALYSIS OF NATURAL DRAFT WET COOLING TOWER AT OPTIMIZED INJECTION HEIGHT 1 ALOK SINGH, 2 SANJAY SONI, 3 R. S. RANA 1 Assistant Professor, 2 Associate Professor, 3 Mechanical Engineering Department

More information

Experimental Research on the Heat Transfer and Flow Performance of a Composite Heat Sink

Experimental Research on the Heat Transfer and Flow Performance of a Composite Heat Sink Experimental Research on the Heat Transfer and Flow Performance of a Composite Heat Sink Yu Xiaoling, Wang Qianlong, Feng Quanke School of Energy and Power Engineering, Xi an Jiaotong University, Xi an

More information

Thermal Imaging for Discharge and Velocity Measurements in Open Channels. PKI 205C, Omaha, NE ;

Thermal Imaging for Discharge and Velocity Measurements in Open Channels. PKI 205C, Omaha, NE ; Thermal Imaging for Discharge and Velocity Measurements in Open Channels E. Jackson 1, D. Admiraal 2, D. Alexander 3, J. Stansbury 4, J. Guo 5, D. Rundquist 6, and M. Drain 7 1 Dept. of Electrical Engineering,

More information

Experimental Study on the Performance of a Fluid-Sloshing Type Energy Conversion System (FSECS)

Experimental Study on the Performance of a Fluid-Sloshing Type Energy Conversion System (FSECS) Experimental Study on the Performance of a Fluid-Sloshing Type Energy Conversion System (FSECS) Hsien Hua LEE and T.-Y. WU Department of Marine Environment and Engineering, National Sun Yat-sen University

More information

Numerical Simulation of the Aerodynamic Performance of a H-type Wind Turbine during Self-Starting

Numerical Simulation of the Aerodynamic Performance of a H-type Wind Turbine during Self-Starting Numerical Simulation of the Aerodynamic Performance of a H-type Wind Turbine during Self-Starting Wei Zuo a, Shun Kang b Key Laboratory of Condition Monitoring and Control for Power Plant Equipment, Ministry

More information

Numerical tracking of methane gas/hydrate and oil droplet in deep water spill

Numerical tracking of methane gas/hydrate and oil droplet in deep water spill Numerical tracking of methane gas/hydrate and oil droplet in deep water spill Y. Takagi 1), T. Ban 1), Y. Okano 1), S. Kunikane 2), S. Kawahara 2), N. Kato 2), K. Ohgaki 1) 1) Osaka University, Department

More information

UNIT I FLUID PROPERTIES AND FLUID STATICS

UNIT I FLUID PROPERTIES AND FLUID STATICS SIDDHARTH GROUP OF INSTITUTIONS :: PUTTUR Siddharth Nagar, Narayanavanam Road 517583 QUESTION BANK (DESCRIPTIVE) Subject with Code : FM & HM (16CE112) Year & Sem: II-B.Tech & I-Sem Course & Branch: B.Tech

More information

CHARACTERISTICS OF HYPOXIC WATER MASS IN ISAHAYA BAY

CHARACTERISTICS OF HYPOXIC WATER MASS IN ISAHAYA BAY Annual Journal of Hydraulic Engineering, JSCE, Vol.5, 1, February CHARACTERISTICS OF HYPOXIC WATER MASS IN ISAHAYA BAY Ami ZAIZEN 1, Hongyuan LI, Yuji SUGIHARA 3 and Nobuhiro MATSUNAGA 1 Student Member

More information

HYDRAULIC DEMONSTRATION CHANNEL

HYDRAULIC DEMONSTRATION CHANNEL HYDRAULIC DEMONSTRATION CHANNEL PACKING LIST Pitot-Static Tube and Manometer Tube Flow Meters 1. 48 Long Differential Manometer 2. Clear Tubing 3. Pitot-static Tube Clamp 4. Pitot-static Tube 1. Venturi

More information

NUTC R203. Safety Risks of Hydrogen Fuel for Applications in Transportation Vehicles. Shravan K. Vudumu

NUTC R203. Safety Risks of Hydrogen Fuel for Applications in Transportation Vehicles. Shravan K. Vudumu Safety Risks of Hydrogen Fuel for Applications in Transportation Vehicles by Shravan K. Vudumu NUTC R203 A National University Transportation Center at Missouri University of Science and Technology Disclaimer

More information

Experiments and volume-of-fluid (VOF) simulations of a three-fluid dam-break

Experiments and volume-of-fluid (VOF) simulations of a three-fluid dam-break Advanced Computational Methods and Experiments in Heat Transfer XIII 363 Experiments and volume-of-fluid (VOF) simulations of a three-fluid dam-break M. Furuya 1, Y. Oka 2, M. Satoh 3, S. Lo 4 & T. Arai

More information

Computational Analysis of Blast Furnace Pulverized Coal Injection For Iron Making

Computational Analysis of Blast Furnace Pulverized Coal Injection For Iron Making Computational Analysis of Blast Furnace Pulverized Coal Injection For Iron Making 1 Gourav Kumar Thakur, 2 Kawal lal Kurrey, 3 Abhishek bhushan 1 M.tech scholar Ccet Bhilai 2 Assistant professor ccet Bhilai

More information

K.Fujinawa 1 ABSTRACT

K.Fujinawa 1 ABSTRACT The Second International Conference on Saltwater Intrusion and Coastal Aquifers Monitoring, Modeling and Management. Merida, Yucatan, Mexico, March 30-April 2, 2003 The Impact of Future Possible Sea Level

More information

Establishment of Evaluation Method, and Extension of Knowledge for Vortex Induced Vibration of Riser

Establishment of Evaluation Method, and Extension of Knowledge for Vortex Induced Vibration of Riser 27 Establishment of Evaluation Method, and Extension of Knowledge for Vortex Induced Vibration of Riser SHUNICHI IKESUE *1 YOSHITO ANDO *1 HIROYUKI YAMAMOTO *2 AKIO USAMI *3 HIDEYUKI SUZUKI *4 MASANORI

More information

heat exchanger modelling for generator ventilation systems

heat exchanger modelling for generator ventilation systems heat exchanger modelling for generator ventilation systems This paper discusses how the heat exchanger/cooler is modelled using CFD (Computational Fluid Dynamics) as a porous medium and the associated

More information

CFD Modelling and Analysis of Different Plate Heat Exchangers

CFD Modelling and Analysis of Different Plate Heat Exchangers CFD Modelling and Analysis of Different Plate Heat Exchangers Ahmed Y Taha Al-Zubaydi a *, Guang Hong b and W. John Dartnall c Faculty of Engineering and Information Technology, UTS, Sydney, Australia

More information

Heat transfer modelling of slot jet impinging on an inclined plate

Heat transfer modelling of slot jet impinging on an inclined plate Heat transfer modelling of slot jet impinging on an inclined plate A. Ramezanpour 1, H. Shirvani 1 & I. Mirzaee 2 1 School of Design and Communication Systems, APU University, UK 2 CFD Research Centre,

More information

Spacing dependence on wind turbine array boundary layers

Spacing dependence on wind turbine array boundary layers Spacing dependence on wind turbine array boundary layers Raúl Bayoán Cal 1,*, Angelisse Ramos 2, Nicholas Hamilton 1, and Dan Houck 3 1 Department of Mechanical and Materials Engineering, Portland State

More information

Experimental and Numerical Studies of Liquid Dispersal from a Soft Projectile Impacting a Wall

Experimental and Numerical Studies of Liquid Dispersal from a Soft Projectile Impacting a Wall Experimental and Numerical Studies of Liquid Dispersal from a Soft Projectile Impacting a Wall Ari Silde 1), Simo Hostikka 1), Ari Kankkunen 2), Juhani Hyvärinen 3) and Ilkka Hakola 1) 1) Technical Research

More information

CFD investigation of coal gasification: Effect of particle size

CFD investigation of coal gasification: Effect of particle size CFD investigation of coal gasification: Effect of particle size Sonal Bhadauria #%, Sreepriya Vedantam *, Shriram Prasad $1, Anish P. Jacob $2 # PG scholar, Madhav Institute of Science and Technology,

More information

Form of waste water discharge in Khamir port solar distillation for environmental management by the empirical equations

Form of waste water discharge in Khamir port solar distillation for environmental management by the empirical equations Available online at www.pelagiaresearchlibrary.com Advances in Applied Science Research, 23, 4(4):76-8 ISSN: 976-86 CODEN (USA): AASRFC Form of waste water discharge in Khamir port solar distillation for

More information

MODELING THE PERFORMANCE OF ULTRAVIOLET REACTOR IN EULERIAN AND LAGRANGIAN FRAMEWORKS

MODELING THE PERFORMANCE OF ULTRAVIOLET REACTOR IN EULERIAN AND LAGRANGIAN FRAMEWORKS Fifth International Conference on CFD in the Process Industries CSIRO, Melbourne, Australia 13-15 December 2006 MODELING THE PERFORMANCE OF ULTRAVIOLET REACTOR IN EULERIAN AND LAGRANGIAN FRAMEWORKS Angelo

More information

Bladeless Wind Turbine

Bladeless Wind Turbine Bladeless Wind Turbine Pratik Oswal 1, Abhishek Patil 2 1, 2 Final Year Students, Mechanical Engineering, SMT Kashibai Navale College Of Engineering, Maharashtra, India Abstract: A wind turbine is a device

More information

Investigating two configurations of a heat exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System (IHICSSWHS)

Investigating two configurations of a heat exchanger in an Indirect Heating Integrated Collector Storage Solar Water Heating System (IHICSSWHS) European Association for the Development of Renewable Energies, Environment and Power Quality (EA4EPQ) International Conference on Renewable Energies and Power Quality (ICREPQ 12) Santiago de Compostela

More information

Optimization and control of working parameters of hot blast furnace

Optimization and control of working parameters of hot blast furnace Optimization and control of working of hot blast furnace Heng Wang 1, Shukun Cao 1, QuanchengDong 1, Yi Cui 1, Zijian Cao 1, Shuqiang Xu 1 Xiangwen Song 1, Hao Shen 1 1 336 West Road Jinan, School of Mechanical

More information

Lecture 26. Contents: Exercise 1. Exercise 2. Exercise 3

Lecture 26. Contents: Exercise 1. Exercise 2. Exercise 3 Lecture 26 Contents: Exercise 1 Exercise 2 Exercise 3 Key Words: Fluid flow, Macroscopic Balance, Frictional Losses, Turbulent Flow, Venturimeter, Orifice Meter, Pitot Tube, Stack, Chimney, raft, Natural

More information

Observation and numerical simulation of melt pool dynamic and beam powder interaction during selective electron beam melting

Observation and numerical simulation of melt pool dynamic and beam powder interaction during selective electron beam melting Observation and numerical simulation of melt pool dynamic and beam powder interaction during selective electron beam melting T. Scharowsky, A. Bauereiß, R.F. Singer, C. Körner *Department of Materials

More information

Visualization Study of Flow Stability in Reverse Roll Coating

Visualization Study of Flow Stability in Reverse Roll Coating ISIJ International, Vol. 55 (015), No. 4, pp. 863 869 Visualization Study of Flow Stability in Reverse Roll Coating Masato SASAKI, 1) * Masaru MIYAKE ) and Naoki NAKATA ) 1) JFE Steel Corporation, 1-1,

More information

Fluidised bed for stripping sand casting process. Guido Belforte, Massimiliana Carello, Vladimir Viktorov

Fluidised bed for stripping sand casting process. Guido Belforte, Massimiliana Carello, Vladimir Viktorov Fluidised bed for stripping sand casting process Guido Belforte, Massimiliana Carello, Vladimir Viktorov Dipartimento di Meccanica - Politecnico di Torino C.so Duca degli Abruzzi, 24 10129 Torino Italy

More information

NUMERICAL SIMULATION AND OPTIMIZATION OF SOLID-LIQUID TWO-PHASE FLOW IN A BACK-SWEPT AXIAL FLOW PUMP

NUMERICAL SIMULATION AND OPTIMIZATION OF SOLID-LIQUID TWO-PHASE FLOW IN A BACK-SWEPT AXIAL FLOW PUMP THERMAL SCIENCE, Year 2017, Vol. 21, No. 4, pp. 1751-1757 1751 NUMERICAL SIMULATION AND OPTIMIZATION OF SOLID-LIQUID TWO-PHASE FLOW IN A BACK-SWEPT AXIAL FLOW PUMP by De-Sheng ZHANG *, Qiang PAN, Hu ZHANG,

More information

Numerical Investigation of Swirl's Effects in the Outer Annulus of a Reverse-flow Gas Turbine Combustor

Numerical Investigation of Swirl's Effects in the Outer Annulus of a Reverse-flow Gas Turbine Combustor Numerical Investigation of Swirl's Effects in the Outer Annulus of a Reverse-flow Gas Turbine Combustor Mostafa Ghanei Tayeblou and Kavous Ariafar Department of Civil Engineering Islamic Azad University,

More information

Investigation of the Discharge Flow of a Reciprocating Compressor Using PIV

Investigation of the Discharge Flow of a Reciprocating Compressor Using PIV Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2000 Investigation of the Discharge Flow of a Reciprocating Compressor Using PIV H. J. Myung

More information

Available online at ScienceDirect. Procedia Engineering 89 (2014 )

Available online at   ScienceDirect. Procedia Engineering 89 (2014 ) Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 89 (2014 ) 143 150 16th Conference on Water Distribution System Analysis, WDSA 2014 Drinking Water Temperature Modelling in

More information

CONFIGURATION OF MICRO-LAYER IN BOILING IN NARROW GAPS FOR WATER

CONFIGURATION OF MICRO-LAYER IN BOILING IN NARROW GAPS FOR WATER ISTP-16, 5, PRAGUE 16 TH INTERNATIONAL SYMPOSIUM ON TRANSPORT PHENOMENA CONFIGURATION OF MICRO-LAYER IN BOILING Yoshio UTAKA *, Yutaka TASAKI ** & Shuhei Okuda * * Division of Systems Research, Faculty

More information

RESULTS OF EXPERIMENTAL MEASUREMENTS AND CALCULATIONS OF PRESSURE LOSSES IN HD-PE PIPES. Pavel Mosler, Jan Melichar

RESULTS OF EXPERIMENTAL MEASUREMENTS AND CALCULATIONS OF PRESSURE LOSSES IN HD-PE PIPES. Pavel Mosler, Jan Melichar 18th International Conference on TRANSPORT AND SEDIMENTATION OF SOLID PARTICLES 11-15 September 2017, Prague, Czech Republic ISSN 0867-7964 ISBN 978-83-7717-269-8 RESULTS OF EXPERIMENTAL MEASUREMENTS AND

More information

Theory Comparison between Propane and Methane Combustion inside the Furnace

Theory Comparison between Propane and Methane Combustion inside the Furnace International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2015 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Theory

More information

Thermal and Fluid-dynamical Optimisation of Passengers Comfort in a Touring Bus Cabin

Thermal and Fluid-dynamical Optimisation of Passengers Comfort in a Touring Bus Cabin Excerpt from the Proceedings of the COMSOL Conference 2008 Hannover hermal and Fluid-dynamical Optimisation of Passengers Comfort in a ouring Bus Cabin Petrone G. (*), Fichera G. (**), Scionti M. (*) (*)

More information

CFD SIMULATION AND EXPERIMENTAL VALIDATION OF FLUID FLOW IN LIQUID DISTRIBUTORS

CFD SIMULATION AND EXPERIMENTAL VALIDATION OF FLUID FLOW IN LIQUID DISTRIBUTORS CFD SIMULATION AND EXPERIMENTAL VALIDATION OF FLUID FLOW IN LIQUID DISTRIBUTORS Marc Heggemann 1, Sebastian Hirschberg 1, Lothar Spiegel 2, Christian Bachmann 2 1 Sulzer Innotec, Sulzer Markets & Technology

More information

Modeling of Transport Phenomena in Metal Foaming

Modeling of Transport Phenomena in Metal Foaming Modeling of Transport Phenomena in Metal Foaming B. Chinè 1,3 and M. Monno 2,3 1 Instituto Tecnològico de Costa Rica, Costa Rica; 2 Politecnico di Milano, Italy; 3 Laboratorio MUSP, Macchine Utensili e

More information

By Kimbal A. Hall, PE. Submitted to: WESTFALL MANUFACTURING COMPANY. May ALDEN RESEARCH LABORATORY, INC. 30 Shrewsbury Street Holden, MA 01520

By Kimbal A. Hall, PE. Submitted to: WESTFALL MANUFACTURING COMPANY. May ALDEN RESEARCH LABORATORY, INC. 30 Shrewsbury Street Holden, MA 01520 COMPUTATIONAL FLOW MODEL OF WESTFALL'S 36 3050 THREE STAGE MIXER TO BE INSTALLED IN THE PERCHLORATE BLENDING STATION FOR THE CITY OF REDLANDS, CALIFORNIA GFS-411507-1R2 By Kimbal A. Hall, PE Submitted

More information

Estimation of drag coefficient of trees considering the tree bending or overturning situations

Estimation of drag coefficient of trees considering the tree bending or overturning situations Estimation of drag coefficient of trees considering the tree bending or overturning situations T. Morinaga 1, N. Tanaka 1, 2, J. Yagisawa 1, 2, S. Karunaratne 3 and W.M.S.B. Weerakoon 3 1 Graduate School

More information

Optimization of embedded Heat Exchanger in a flat plate Integrated Collector Storage Solar Water Heater (ICSSWH), with indirect heat withdrawal.

Optimization of embedded Heat Exchanger in a flat plate Integrated Collector Storage Solar Water Heater (ICSSWH), with indirect heat withdrawal. World Renewable Energy Congress (WRECX) Editor A. Sayigh 2008 WREC. All rights reserved. 1815 Optimization of embedded Heat Exchanger in a flat plate Integrated Collector Storage Solar Water Heater (ICSSWH),

More information

Data File. May Contacts Details:

Data File. May Contacts Details: Adelaide Jet Flame 3 Data File May 2016 Adelaide Jet Flame 3 C2H4-H2-N2-D80-15K Contacts Details: Prof Bassam Dally School of Mechanical Engineering The University of Adelaide South Australia, 5005, SA

More information

Data File. May Contacts Details:

Data File. May Contacts Details: Adelaide Jet Flame 2 Data File May 2016 Adelaide Jet Flame 2 C2H4-H2-N2-D58-15K Contacts Details: Prof Bassam Dally School of Mechanical Engineering The University of Adelaide South Australia, 5005, SA

More information

Haiqi YU and Miaoyong ZHU

Haiqi YU and Miaoyong ZHU , pp. 584 591 Numerical Simulation of the Effects of Electromagnetic Brake and Argon Gas Injection on the Three-dimensional Multiphase Flow and Heat Transfer in Slab Continuous Casting Mold Haiqi YU and

More information

Theoretical Modeling of Protective Oxide Layer Growth in Non-isothermal Lead-Alloys Coolant Systems: Quarterly Progress Report (01/01/05-03/31/05)

Theoretical Modeling of Protective Oxide Layer Growth in Non-isothermal Lead-Alloys Coolant Systems: Quarterly Progress Report (01/01/05-03/31/05) Transmutation Sciences Materials (TRP) Transmutation Research Program Projects 3-31-005 Theoretical Modeling of Protective Oxide Layer Growth in Non-isothermal Lead-Alloys oolant Systems: Quarterly Progress

More information

ON THE FLOW DYNAMICS AND OUT-OF-PHASE PHENOMENA IN ORBITALLY SHAKEN BIOREACTORS

ON THE FLOW DYNAMICS AND OUT-OF-PHASE PHENOMENA IN ORBITALLY SHAKEN BIOREACTORS 14 th European Conference on Mixing Warszawa, 10-13 September 2012 ON THE FLOW DYNAMICS AND OUT-OF-PHASE PHENOMENA IN ORBITALLY SHAKEN BIOREACTORS W. Weheliye, M. Yianneskis and A. Ducci University College

More information

Research on the Trajectory of Oil Spill in Near-shore Area

Research on the Trajectory of Oil Spill in Near-shore Area International Journal of Engineering Science Invention ISSN (Online): 2319 6734, ISSN (Print): 2319 6726 Volume 4 Issue 4 April 2015 PP.68-74 Research on the Trajectory of Oil Spill in Near-shore Area

More information

Plating HIGH ASPECT RATIO PCBs

Plating HIGH ASPECT RATIO PCBs Plating HIGH ASPECT RATIO PCBs Achieving proper copper deposition in holes on thicker boards is no easy task, even with reverse pulse plating. Understanding the ins and outs of electrolyte agitation is

More information

Flow and Heat Transfer Characteristics in High Porosity Metal Foams

Flow and Heat Transfer Characteristics in High Porosity Metal Foams Proceedings of the World Congress on Mechanical, Chemical, and Material Engineering (MCM 2015) Barcelona, Spain July 20-21, 2015 Paper No. 333 Flow and Heat Transfer Characteristics in High Porosity Metal

More information

Inkjet. A microtool for Nanotechnology

Inkjet. A microtool for Nanotechnology Nanotechnology for engineers Winter semester 2004-2005 A microtool for Nanotechnology Nanotechnology for Engineers : J. Brugger (LMIS-1) & P. Hoffmann (IOA) Why 1. Data-driven 2. Non-contact 3. Precise

More information

DETERMINATION OF DROP BREAKAGE MECHANISMS BY EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF SINGLE DROP BREAKAGES

DETERMINATION OF DROP BREAKAGE MECHANISMS BY EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF SINGLE DROP BREAKAGES 14 th European Conference on Mixing Warszawa, 1-13 September 212 DETERMINATION OF DROP BREAKAGE MECHANISMS BY EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF SINGLE DROP BREAKAGES S. Nachtigall a, D. Zedel

More information

Level 6 Graduate Diploma in Engineering Hydraulics and hydrology

Level 6 Graduate Diploma in Engineering Hydraulics and hydrology 910-103 Level 6 Graduate Diploma in Engineering Hydraulics and hydrology Sample Paper You should have the following for this examination one answer book ordinary graph paper pen, pencil, ruler Work sheet

More information

WATER QUALITY MODELING FOR BOD and COD CONTROL STRATEGIES FOR THE BURIGANGA RIVER OF BANGLADESH

WATER QUALITY MODELING FOR BOD and COD CONTROL STRATEGIES FOR THE BURIGANGA RIVER OF BANGLADESH Proceedings of the 13 th International Conference of Environmental Science and Technology Athens, Greece, 5-7 September 13 WATER QUALITY MODELING FOR BOD and COD CONTROL STRATEGIES FOR THE BURIGANGA RIVER

More information

Measurements of Carbon Dioxide in the Seto Inland Sea of Japan

Measurements of Carbon Dioxide in the Seto Inland Sea of Japan Journal of Oceanography Vol. 49, pp. 559 to 569. 1993 Measurements of Carbon Dioxide in the Seto Inland Sea of Japan EIJI YAMASHITA 1, FUKUICHI FUJIWARA 2, XIAOHU LIU 3 * and EIJI OHTAKI 4 1 Environmental

More information

Investigation on Core Downward Flow by a Passive Residual Heat Removal System of Research Reactor

Investigation on Core Downward Flow by a Passive Residual Heat Removal System of Research Reactor Investigation on Core Downward Flow by a Passive Residual Heat Removal System of Research Reactor W.K. Lee 1, S.J. Kim 1, D.Y. Lee 1, W.K. Hwang 1, K.Y. Lee 1 1) Department of Mechanical and Control Engineering,

More information

Design of a new wind tunnel facility at Industrial Engineering School in Badajoz (Spain)

Design of a new wind tunnel facility at Industrial Engineering School in Badajoz (Spain) Design of a new wind tunnel facility at Industrial Engineering School in Badajoz (Spain) F. Zayas Hinojosa Department of Electronics and Electromechanical Engineering, University of Extremadura, Spain

More information

Investigation of Non-Premixed Opposed Flow H 2 /Air Laminar Flames using Coherent Anti-Stokes Raman Scattering (CARS)

Investigation of Non-Premixed Opposed Flow H 2 /Air Laminar Flames using Coherent Anti-Stokes Raman Scattering (CARS) 8 th US National Technical Meeting of the Combustion Institute Hosted by University of Utah, Park City, Utah May 19-22, 2013 Investigation of Non-Premixed Opposed Flow H 2 /Air Laminar Flames using Coherent

More information