PDF Publication Title:
Text from PDF Page: 118
Figure 4.23 shows that the optimum pressure ratio has higher values for re-heated cycles. The pressure drops in the re-heater reduce the pressure ratio deviation from the cycle without re-heat. The effect of re-heat on the cycle pressure drops is depicted in Figure 4.24. It can be seen that the pressure drops for the optimum cycle design are slightly increased compared to the Brayton cycle without re-heating. The pressure drops are compared only for one case of the re-heater pressure drop (65 kPa) because it turns out that the component pressure drop change was about the same for all re-heater pressure drops. The same is true for the recuperator effectiveness; therefore Figure 4.25 shows the recuperator effectiveness only for the case of 65 kPa pressure drop in the re-heater. As can be seen the recuperator effectiveness for the same total heat exchanger volume is slightly lower in the case of re-heat. The reduction of the effectiveness is dependent on the total volume of heat exchangers. Introduction of one stage of re-heat reduces the recuperator effectiveness by about 0.4% for small values of the total volume of heat exchangers and 0.1% for large values of total volume of heat exchangers. This is caused by the increased regeneration of the cycle due to the introduction of re-heat. Figure 4.26 shows the efficiency that can be achieved with multiple re-heating if the re-heater fractional pressure drop is 65 kPa. While the first stage of re-heat gives a significant improvement of the efficiency the second stage introduces a very low benefit. The next stage of re-heating would have an even smaller effect on the cycle efficiency. This clearly shows that introducing more than one stage of re-heat is not reasonable, since re-heating is available only to indirect cycles and in such a case the additional cost of the re-heater must be worthwhile. For the second stage of re-heat the minor efficiency improvement will be offset by the additional capital cost. Figure 4.27 offers an additional insight into the efficiency improvement due to re- heat. One can see that while for the first stage of re-heat it is beneficial to have a large total volume of heat exchangers, for the second stage of re-heat the additional improvement increase is much less for an increase of the total heat exchanger volume. 99PDF Image | Advanced Nuclear Power Technology Program A Supercritical Carbon Dioxide Cycle for Next Generation Nuclear Reactors
PDF Search Title:
Advanced Nuclear Power Technology Program A Supercritical Carbon Dioxide Cycle for Next Generation Nuclear ReactorsOriginal File Name Searched:
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 (Standard Web Page)