PDF Publication Title:
Text from PDF Page: 111
4.2.1 Re-heated Brayton Cycle The first investigated cycle layout is the re-heated Brayton cycle. Cycles with one, and two stages of re-heat are investigated. The re-heating improves the cycle efficiency by increasing the equivalent Carnot temperature for the cycle. We can assume that every thermodynamic cycle has its own equivalent Carnot cycle, i.e. Carnot cycle that achieves the same efficiency. The maximum and minimum temperatures of such an equivalent Carnot cycle can be obtained by evaluating the average temperatures at which the heat is added to and rejected from the real cycle. To increase the efficiency of a real cycle one has to either increase the average temperature of heat addition or reduce the average temperature of heat rejection. With this view it is easy to see that re-heating is the first strategy. By the introduction of a re-heat stage the turbine outlet temperature increases, which leads to the increase of the reactor inlet temperature and thus to the increase of the average temperature at which the heat is added to the cycle. Therefore, to get the best efficiency improvement from re-heating one would like to keep the inlet temperature the same and the outlet temperatures the same for all turbines. For an ideal gas cycle, due to the constant pressure ratio this leads to the equal split of the total pressure ratio among the turbines. For a real gas cycle such as CO2 the pressure ratio split should be optimized to give the same equivalent temperatures of heat addition. However the optimized value is not expected to significantly differ from the equal pressure ratio split, because CO2 is very close to ideal gas behavior in the turbine. The situation may be different for inter- cooling, where the specific heat varies more widely. The cycle layouts are depicted in Figure 4.19. The cycle is similar to the simple Brayton cycle, i.e. the working fluid is compressed in the compressor, then heated in the recuperator by the turbine exhaust, and before entering a turbine it is heated in the reactor. The only difference from the simple Brayton cycle is the split of the turbine into high pressure and a low-pressure turbine and introduction of another pass through the reactor in order to reheat CO2. After the expansion in the low-pressure turbine the working fluid enters the recuperator where it is used to pre-heat the working fluid from the compressor to the reactor inlet temperature. Finally, the heat is rejected in the pre- cooler, where the working fluid is cooled to the compressor inlet temperature. It is 92PDF Image | Supercritical Carbon Dioxide Cycle for Next Generation Nuclear Reactors
PDF Search Title:
Supercritical Carbon Dioxide Cycle for Next Generation Nuclear ReactorsOriginal File Name Searched:
Infinity_dostal.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 |