PDF Publication Title:
Text from PDF Page: 006
148 V. Minea / Applied Thermal Engineering 69 (2014) 143e154 2.5 2 1.5 1 0.5 0 ORC-50 30 25 20 15 10 5 0 ORC-50 80 85 90 95 100 105 110 115 120 Waste heat inlet temperature, °C (b) Variable feed pump speed: 0-60 Hz Cooling fluid inlet temperature = 15°C 30 C Variable feed pump speed: 0-60 Hz 30°C Cooling fluid inlet temperature = 15°C 80 85 90 95 100 105 110 115 120 Waste heat input temperature, °C (a) Fig. 4. Organic fluid flow rate (a) and superheating (b) as functions of waste heat and cooling fluid inlet temperatures, with feed pump operating at variable speed (0e60 Hz). 1.019 (133.2) 2s Dpev = 30 kPa 26°C 0.241 (20.3) Dpcd = 30 kPa 2a Tev = 90°C 4 94°C Evaporator 5 Preheater 3 Waste heat thermal power input 526.8 kW (5 616 kWh) 100% Electrical power output 39.9 kW (426 kWh) 7.57% 1 Tcd = 34.6°C Condenser 6a 6s 6 38°C Expander outlet state 6 – without liquid injection 6s – adiabatic expansion 6a – actual, with liquid injection 105°C / 20°C Mass enthalpy, kJ/kg (a) Test AD-14: energy balance (experimental error = 1%) Condenserthermalpowerrejection 0.18% 482.8 kW (5147 kWh) 91.6% (b) Fig. 5. (a) Typical thermodynamic cycle of test AD-14 using waste heat and cooling fluid inlet temperatures of 105 C and 20 C, respectively; (b) measured energetic balance; Tcd: condensing temperature; Tev: evaporating temperature; Dp: pressure drop. components causing irreversibility. Consequently, improving the evaporator and condenser design and thermal performance in or- der to reduce irreversibility is crucial in enhancing the ORC cycle’s overall performance. The ORC machines using low-temperature heat sources require large evaporator and condenser heat transfer areas to extract the same amount of energy as high-temperature systems. This limits the use of low-temperature resources and 50 ORC-50 emphasizes the necessity of optimum design and cost-effective ORC plants. Exergy destruction also occurs during the non-isentropic expansion process. For a given waste (source) heat inlet tempera- ture, as the inlet pressure and temperature of the organic fluid in the expander increase, the enthalpy drop increases and, corre- spondingly, the exergy destruction rate decreases, while the cycle 50 45 40 35 30 25 20 15 10 5 0 ORC-50 Feed pump electrical power input 0.96 kW (10.23 kWh) Variable feed pump speed: 0-60 Hz Cooling inlet temperature = 15°C 20°C 30°C Net power average decrease = 12.3% Waste heat inlet temperature 105°C 85°C Net power average decrease = 19.4% 45 40 35 30 25 20 15 10 5 0 80 85 90 95 100 105 110 115 120 Waste heat inlet temperature, °C (a) 10 15 20 25 30 35 Cooling fluid inlet temperature, °C (b) Fig. 6. (a) Net power output as a function of waste heat (a) and cooling fluid (b) inlet temperatures with the feed pump running at variable speed (0e60 Hz). Net power output, kW Net power output, kW Evaporator superheating, °C Pressure, MPa,a (psig) Organic fluid flow rate, kg/sPDF Image | Power generation with ORC machines low-grade waste heat
PDF Search Title:
Power generation with ORC machines low-grade waste heatOriginal File Name Searched:
AppliedThermalEngArticle_Minea_2014.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |