PDF Publication Title:
Text from PDF Page: 006
Sustainability 2015, 7 15367 In the present study, the thermodynamic performance of regenerative organic Rankine cycles utilizing low temperature heat sources is simulated to assist in selecting proper organic working fluids. Bristol and thermodynamic models are used to investigate thermodynamic parameters such as output power and efficiency, and the cost rate of the product electricity is determined with exergo-economic analysis. Nine working fluids are considered in order to investigate which yields the greatest output power and exergy efficiency within system constraints. Exergy efficiency and cost rate of electricity are used as objective functions for the system optimization. Each of fluid is examined in order to achieve optimal operating conditions. The degree of superheat and pressure ratio are independent variables in the optimization. 2. System Modeling 2.1. System Description Figure 1 shows the regenerative organic Rankine cycle considered in the analysis. It is comprised of a boiler, expander, regenerator, condenser and pump. In the regenerator heat exchanger, heat is transferred between the high temperature vapor at the expander outlet and the low temperature fluid at the pump outlet in order to avoid energy loss. The reason for this is that, when using an isentropic or dry fluid, the expander exit flow is superheated. Depending on the working fluid and the expander pressure ratio, this temperature is higher than that of the flow exiting the pump. After the working fluid leaves the regenerator, it enters the boiler and absorbs heat from the heat source. The working-fluid phase varies from a sub-cooled liquid to a saturated or superheated vapor. Then the saturated or superheated vapor passes through the expander linked to an electric generator, which converts the energy of vapor to electrical energy. The working fluid exiting the regenerator enters the condenser where heat is rejected to environment. The working fluid condenses and heat is rejected to a heat sink. Figure 1. Diagram of regenerative organic Rankine cycle.PDF Image | Selection of Optimum Working Fluid for Organic Rankine Cycles
PDF Search Title:
Selection of Optimum Working Fluid for Organic Rankine CyclesOriginal File Name Searched:
sustainability-07-15362.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 (Standard Web Page)