PDF Publication Title:
Text from PDF Page: 043
2.4.2 Stirling and Ericsson cycles Stirling and Ericsson cycles like Carnot cycle involve two isothermal processes. They differ from the Carnot cycle in that the two isentropic processes are replaced by two constant- volume regeneration processes in the Stirling cycle and by two constant-pressure regeneration processes in the Ericsson cycle. Figure 2.7 shows the P-v and the T-s diagrams of Stirling cycle. 3 2 34 2 1 Figure 2.7 – The Stirling cycle 4 1 For an ideal Stirling–cycle engine (perfect regeneration), the thermal efficiency can be determined by (Kontragool and Wongwise, 2006): . Wnet T =1- 1 ηST= th . T Volume (2.6) As it can be seen from equation 2.6, the efficiency of the Stirling cycle engine strongly depends on the temperatures and equals the Carnot efficiency, and thus has the potential of reaching very high efficiencies. The Stirling cycle can be achieved by combination of various machine components. The cycle provides a constant-volume process during the transfer of working fluid between the hot and cold space of the engine, and provides a constant-temperature heating and cooling process during compression and expansion. The compression and expansion processes of the cycle generally take place in a cylinder (power cylinder) with a piston (power piston). A displacer piston (displacer) shuttles the working fluid back and forth through the heater, regenerator, and cooler at constant volume. Three different configurations of the Stirling engine are commonly used. These configurations shown on Figure 2.8 are the alpha-, the beta- and the gamma-configurations. In all these configurations, the displacer plays the same role, which is to displace the working fluid from hot space to the cold space and vice versa. Qin 3 Entropy 1-2: isothermal compression, 2-3: isochoric heat addition 3-4: isothermal expansion, 4-1: isochoric cooling Page | 42 Pressure TemperaturePDF Image | Low-Grade Heat Conversion into Power Using Small Scale Organic Rankine Cycles
PDF Search Title:
Low-Grade Heat Conversion into Power Using Small Scale Organic Rankine CyclesOriginal File Name Searched:
Tchanche_B.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)