PDF Publication Title:
Text from PDF Page: 034
5. Cycle with Intercooling An intercooling cycle configuration, in which a compressor is split into two stages with working fluid cooling between the stages, is frequently used for ideal gas Brayton cycles to reduce the overall compressional work and, therefore, increase the cycle efficiency. In the S-CO2 cycle, however, the compressional work is already small such that the benefits from the intercooling are also expected to be small. In addition, intercooling between the compressor stages reduces the temperature at the compressor outlet (recuperator inlet) such that the performance of the recuperators is expected to be affected, especially for the low temperature recuperator where the proximity to the critical point affects the performance significantly. The S-CO2 cycle developed at the Tokyo Institute of Technology is based on a minimum CO2 temperature of 35 oC, a low end pressure of 7.1 MPa that is subcritical, and utilizes intercooling between two main compressors instead of a single main compressor [7]. Figure 17 shows the cycle configuration, parameters, and performance of the S-CO2 Brayton cycle with intercooling between the main compressor stages. The intercooling pressure is selected such that the pressure ratios of the two stages of the compressor would be about the same. It is assumed that as a result of intercooling the CO2 reaches the same temperature at the second compression stage inlet as for the first stage, 31.25 oC. The CO2 flow split fraction between the main and the recompression compressors is selected to optimize the cycle efficiency. Figure 17 demonstrates that the cycle efficiency for the intercooling cycle is slightly lower than that for the reference cycle. Therefore, no benefits could be achieved by implementing the intercooling between the main compressor stages. Similar calculations show that the intercooling between the recompression compressor stages does not improve the cycle efficiency either. 32PDF Image | Performance Improvement Options for the Supercritical Carbon Dioxide Brayton Cycle
PDF Search Title:
Performance Improvement Options for the Supercritical Carbon Dioxide Brayton CycleOriginal File Name Searched:
61951.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)