PDF Publication Title:
Text from PDF Page: 013
TA 4.R: Supercritical Carbon Dioxide Brayton Cycle Table 4.R.4 Potential Applications for sCO for Power Conversion – Modified from Workshop34 2 Application Cycle type Motivation Size [MWe] Temperature (°C) Pressure [MPa] Nuclear Fossil Fuel (PC, CFB, ...) Concentrating Solar Power Shipboard Propulsion Shipboard House Power Waste Heat Recovery Geothermal Fossil Fuel (Syngas, nat gas) Indirect sCO2 Indirect sCO2 Indirect sCO2 Indirect sCO2 Indirect sCO2 Indirect sCO2 Indirect sCO2 Direct sCO 2 Efficiency, Size, Water Reduction Efficiency, Water Reduction Efficiency, Size, Water Reduction Efficiency, Size Efficiency, Size Efficiency, Size, Simple Cycles Efficiency Efficiency, Water Reduction, CO2 Capture 10 - 300 300 - 600 10 - 100 <10 - 10 <1 - 10 1 - 10 1 - 50 300 - 600 350 - 700 550 - 900 20 - 35 15 - 35 500 - 1000 35 200 - 300 230 - 650 < 230 - 650 15 - 25 15 - 35 15 - 35 100 - 300 15 1100 - 1500 35 which lowers the size and capital cost, and for some applications, also lowers the fuel usage and operating costs. Increasing process efficiency also diminishes the environmental footprint of the process by reducing water usage and in the case of fossil fuel applications, reducing greenhouse gas emissions. There are other potential benefits of the sCO2 Brayton cycle as well although they remain to be demonstrated as convincingly as the potential for higher process efficiency. Because of the relatively high density of the working fluid, there is a potential for some of the unit operations to be smaller and less costly on a $/kWe basis. However, not all of the properties of the sCO2 Brayton cycle lend themselves to size and cost reductions. For example, the sCO2 Brayton cycle is more complex than the Rankine cycle, requires compressors instead of feedwater pumps, and requires recuperators having larger heat duties than the heat source. Another potential benefit is that the sCO2 Brayton cycle may prove to be more practical than the Rankine cycle for air cooling in locations where water cooling is not available.35 This is because the working fluid cooler in the sCO2 Brayton cycle requires significantly less air flow than an air-cooled condenser in a Rankine cycle having the same cooling duty. However, this benefit is achieved through reduction in the average driving force for heat transfer in the cooler which would act to increase the required surface area for heat transfer and some investigators have questioned the practicality of air cooling in the sCO2 Brayton cycle.36 With further analysis, development, and demonstration, the impact of this technology on power plant costs and water usage will become clearer. In summary, the supercritical CO2 based recompression Brayton cycle offers the opportunity to increase cycle efficiency compared to Rankine cycles and some other Brayton cycles and lead to power plants with higher process efficiency. CO2 appears to be an ideal working fluid because it has a critical point well-suited to terrestrial applications with a moderate critical pressure and a critical temperature that is low enough to be reached with ambient cooling when the wet cooling option is available. The supercritical CO2 Brayton cycle may be applied to direct-heating applications, with potential for high efficiency and capture of process water - such a cycle also facilitates CO2 capture from the combustion process. When its availability and low cost are factored in, no other substance is a more attractive working fluid for the supercritical Brayton cycle. While some progress has been made in researching and developing sCO2 systems, significant challenges remain in areas such as material performance, manufacturing, economics, and reliability. 12 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 (Standard Web Page)