PDF Publication Title:
Text from PDF Page: 004
TA 4.R: Supercritical Carbon Dioxide Brayton Cycle Figure 4.R.2 Simple Brayton Cycle Efficiency. Plot of cycle efficiency versus pressure ratio for three different working fluids with ideal turbomachinery (dashed lines) and non-ideal cycles with turbomachinery isentropic efficiencies (η) of 0.9.5 Credit: NETL Table 4.R.1 Non-ideal Simple Brayton Cycle Performance6 and Working Fluid Properties7,8 Working fluid Tc (K) Pc (bar) cp/cv Pressure ratio at maximum efficiency Turbine exit pressure at maximum efficiency (bar) Maximum efficiency (%) CO2 304 73.8 N2 126 33.9 He 5 2.3 1.289 34.9 82.7 34.5 1.4 10.5 1.0 29.5 1.66 5.0 1.0 29.5 Another interesting aspect of the Brayton cycle based on CO2 is that the cycle efficiency is strongly dependent on the minimum pressure in the cycle. Figure 4.R.3 shows the maximum cycle efficiency as a function of turbine exit pressure for three different working fluids with an arbitrary turbine inlet temperature of 700 °C and turbomachinery isentropic efficiencies of 0.9. For N2 and He, the cycle efficiency decreases monotonically as the turbine exit pressure increases. For CO2, however, the cycle efficiency shows a maximum of 34.5% when the turbine exit pressure is approximately 82.7 bar (right vertical dashed line in Figure), a bit above the critical pressure of 73.8 bar (left vertical dashed line in Figure). Note also that for a turbine exit pressure of 1 bar, the maximum cycle efficiency is nearly the same for all three working fluids. 3 QuadrennialTechnologyReview2015PDF Image | Advancing Clean Electric Power Technologies
PDF Search Title:
Advancing Clean Electric Power TechnologiesOriginal File Name Searched:
QTR2015-4R-Supercritical-Carbon-Dioxide-Brayton Cycle.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 |