Organic Rankine Cycle Technology

Transcription

1 Power Systems Pratt & Whitney Power Systems Organic Rankine Cycle Technology TM It s in our power.

2 Pratt & Whitney Organic Rankine Cycle Technology Quality High-volume components produced to strict tolerances allow for tightly controlled assembly processes, yielding a standardized power plant that is ready for site installation. Pratt & Whitney quality tools, such as mistake proofing, process certification and relentless root cause analysis (RRCA), are promoted throughout the supply chain. Key quality and production certifications, including ISO 9001:2001 are maintained throughout the supply base. Pratt & Whitney, a division of United Technologies Corporation (UTC), is committed to providing clean, efficient and reliable power within the renewable energy market. Its Organic Rankine Cycle (ORC) product line, developed by Pratt & Whitney Power Systems (PWPS), harnesses heat to generate electricity from a variety of sources including biomass, geothermal, reciprocating engines, industrial waste heat, incinerators, oil and gas fields, etc. Ease of installation and maintenance Fully integrated and assembled, modular, skidmounted packages that can be sized to match the resource and rapidly deployed according to need 100% remote monitoring and operation 1) Hot water enters the evaporator to heat the ORC system working fluid. 2) High-pressure, hot, vaporized working fluid then enters the power module and drives a turbine to produce electrical power. PWPS developed the PureCycle power system (280 kw) for low-to moderate-temperature heat streams, particularly in the smaller (1 MW or lower) size range. Turboden, a PWPS company is an ORC manufacturer based in Italy with over 30 years of experience. They manufacture ORC product lines suitable for moderate and higher temperature heat streams, particularly in the larger (1 MW 7 MW, and up) size range. Pratt & Whitney. It s in our power. TM The Organic Rankine Cycle Technology Delivers a Variety of Performance Characteristics that Make It Unique: Organic Rankine Cycle Thermodynamic Process *Ref. Figure 1 Variety of working fluids available ORC turbines are built upon 30 years of industry experience and, in some applications, derived from a standard centrifugal vapor compressor used in today s water-cooled chillers 3) Low-pressure, expanded vapor cycles through a condenser where it is cooled and condensed into liquid form. 4) The cooled liquid is then sent to the pump, boosted in pressure and sent back to the evaporator to repeat the cycle. Speed of Delivery High-volume flow lines at multiple industry-leading integrators are designed for and dedicated to the ORC product. Supplier input, incorporated from early in the design process, maximizes producibility. Standardized assembly processes allow for seamless production to rapidly meet customerunique requirements. Pratt & Whitney continuous improvement tools are implemented throughout the supply chain. Overall Value Units are manufactured and tested in tightly controlled factory environments. Modular design, standardized components and high volume lead to a higher value proposition for the customer. Benefits Renewable power generation 195 F to 660 F (90 C to 350 C) resource range Modular and scalable for larger plants 24/7/365 remote monitoring High availability Standardized components and assembly processes *Figure 1: Organic Rankine Cycle Thermodynamic Process Backed by Pratt & Whitney Power Systems

3 Pratt & Whitney PureCycle Power System Overview The PureCycle power system solution is built with the proven technology and components of commercial centrifugal chillers, ensuring product quality and reliability. This system operates with a non-flammable working fluid refrigerant called R245fa. The PureCycle power system provides a low maintenance cost-effective option, which creates revenue, reduces process cost and supports an intelligent energy strategy. The PureCycle power system is supplied as a complete, fully integrated and assembled unit. PureCycle Power System Facts Physical Data Operating weight Shipping weight Dimensions (L x W x H) Maximum shipping height 33,300 lbs (15,104 kg) 27,600 lbs (12,519 kg) 19 x 7-6 x 11-3 (5790 x 2290 x 3430 mm) 10-3 (3200 mm) Performance Characteristics Electric power (gross) V/3-phase/60Hz, V/3-phase/50Hz Electric power (net) Hz, Hz Ambient operation -22 F to 122 F (-30 C to 50 C) Power factor > 0.95 lagging Total harmonic distortion < 5% Emissions Zero (closed binary cycle) Noise 78 dba at 33 ft (10m) Design Attributes Plumbing ASME B31.1/PED Turbine Radial inflow Generator Induction Heat exchangers ASME Section VIII/PED Enclosure, electrical NEMA 4/IP65 Design life 20 years Lubrication Integrated internal oil lubrication UL/CE components UL 1995, 984 and 1741 Transient voltage/surge suppression at utility interface IEEE C (R1995) Utility grid-connect protective relaying function IEEE1547

4 PureCycle Power System Dimensions Side Views Top View 7 ft, 6 in. (229 cm) 9 ft (274 cm) 7 ft, 6 in. (229 cm) Maximum 3 ft, 4 in. (104 cm) 2 ft, 1 in. (63.5 cm) 3 ft, 6 in. (108 cm) Back View 11 ft, 3 in. (343 cm) Maximum Front View 19 ft (579 cm) Maximum Typical Performance Characteristics with Carbon Steel Evaporator and Copper Condenser PureCycle Model 280 Temperature and Flow Required for Rated Power Resource Temperature ( F) Resource Flow - Liters Per Second (l/s) F (26.6 C) Cooling Water Inlet Temperature F (21 C) Cooling Water Inlet Temperature F (15.5 C) Cooling Water Inlet Temperature F (10 C) Cooling Water Inlet Temperature Resource Flow - Gallons Per Minute (gpm) Assumption: 18 F (10 C) Cooling Water DT Resource Temperature ( C) PureCycle Model 280 Cooling Flow Requirements Cooling Flow Rate (Gallons Per Minute) Resource Temperature ( C) Resource Temperature ( F) Cooling Flow Rate (Liters Per Second)

5 Pratt & Whitney Turboden Overview A Pratt & Whitney Power System Company Turboden, a PWPS company provides ORC units that can Applicable Heat Sources for Turboden Product Line operate utilizing medium to high temperature heat sources (120 C to more than 350 C, 250 F to more than 660 F) in a variety of applications. ORC product size varies from 400 kw to 5 MW for standard heat recovery and combined heat and power (CHP) units, and higher for utility scale geothermal applications. Standard Sizes and Typical Performance (CHP and High-Efficiency Units) Turboden, a PWPS company provides ORC units that can operate in CHP mode with electrical efficiencies in the percent range or in the high-efficiency configuration where electrical efficiencies can be as high as 24 percent. Typical schematic in CHP mode for a biomass application example.

6 Typical Performance Characteristics for Turboden Heat Recovery (HR) Units* TD4 HR TD6 HR TD7 HR TD10 HR TD14 HR TD18 HR TD22 HR TD27 HR Input Thermal Oil Nominal Temperature (In/Out) F 527/ / / / / / / /311 C 275/ / / / / / / /155 Thermal Power Input MMBtu/hr kw 2,200 2,850 3,450 4,500 6,450 8,700 11,000 13,500 Output Cooling Water Cooling Water Temperature (In/Out) F 77/95 77/95 77/95 77/95 77/100 77/104 77/108 77/118 C 25/35 25/35 25/35 25/35 25/38 25/40 25/42 25/48 Thermal Power to the Cooling Water MMBtu/hr kw 1,760 2,253 2,728 3,563 5,096 6,860 8,682 10,650 Performance Gross Electric Power kw ,302 1,762 2,220 2,740 Gross Electric Efficiency 19.0% 19.9% 19.9% 19.9% 20.2% 20.3% 20.2% 20.3% Captive Power Consumption kw Net Active Electric Power Output kw ,250 1,700 2,140 2,630 Net Electric Efficiency** 18.2% 19.1% 19.1% 19.1% 19.2% 19.6% 19.5% 19.5% Electrical Generator asynch., 3 asynch., 3 asynch., 3 asynch., 3 asynch., 3 asynch., 3 asynch., 3 asynch., 3 phase, L.V. phase, L.V. phase, L.V. phase, L.V. phase, L.V. phase, L.V. phase, L.V. phase, L.V. Size of Plant ft 49 x 10 x x 10 x x 10 x x 15 x x 20 x x 23 x x 23 x x 23 x 16 m 15 x 3 x 3 15 x 3 x 3 15 x 3 x 3 15 x 5 x 3 13 x 6 x 6 15 x 7 x 5 17 x 7 x 5 17 x 7 x 5 Skid Single skid Single skid Single skid Single skid Multiple skid Multiple skid Multiple skid Multiple skid Typical Performance Characteristics for Turboden High-Efficiency (HRS) Units* TD12 HRS TD24 HRS Input Thermal Oil Nominal Temperature (In/Out) F 581/ /412 C 305/ /211 Thermal Power Input MMBtu/hr kw 4,817 9,634 Output Cooling Water Cooling Water Temperature (In/Out) F 77/95 81/99 C 25/35 27/37 Thermal Power to the Cooling Water MMBtu/hr kw 3,556 7,143 Performance Gross Electric Power kw 1,188 2,342 Gross Electric Efficiency 24.7% 24.3% Captive Power Consumption kw Net Active Electric Power Output kw 1,139 2,248 Net Electric Efficiency** 23.6% 23.3% *Data indicated can be optimized taking into account the actual features of the specific project. ** Ratio between net active power output and thermal power input from thermal oil. Typical Applications: Biomass (Power Only) Applications Concentrating Solar Power (CSP) Industrial Waste Heat from: Cement, Steel, Glass, etc. Gas Turbine Exhaust Reciprocating Engine Exhaust Thermal Oxidizers

7 Typical Performance Characteristics for Turboden CHP Units* TD6 CHP TD7 CHP TD10 CHP TD14 CHP TD18 CHP TD22 CHP Input Thermal Oil Nominal Temperature (In/Out) F 572/ / / / / /464 C 300/ / / / / /240 Thermal Power Input MMBtu/hr kw 3,240 3,815 5,140 6,715 9,790 12,020 Output Cooling Water Cooling Water Temperature (In/Out) F 140/ / / / / /194 C 60/80 60/80 60/80 60/80 60/90 60/90 Thermal Power to the Cooling Water MMBtu/hr kw 2,569 3,040 4,087 5,318 7,842 9,601 Performance Gross Electric Power kw ,016 1,339 1,863 2,304 Gross Electric Efficiency 19.8% 19.3% 19.8% 19.9% 19.0% 19.2% Captive Power Consumption kw Net Electric Efficiency** 18.9% 18.4% 18.8% 19.1% 18.2% 18.4% *Data indicated can be optimized taking into account the actual features of the specific project. **Ratio between net active power output and thermal power input from thermal oil. Typical Applications: Biomass including: Sawmills, Wood Pellet Production District Heating Networks

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