PDF Publication Title:
Text from PDF Page: 088
βπ = πππ’ππ 1 β 1 1 Eqn. 4-4 π πππ for a fluid with constant specific heat capacity, where π is the polytropic efficiency of the pump, cp is the specific heat capacity of the fluid, and the pump work is calculated as before. Constant specific heat capacity is a good assumption for liquid sodium within the intermediate loop. If the pump is 75 % efficient, this results in a temperature rise of 0.27 oC, which is negligible. Basically, the intermediate piping can be ignored for efficiency studies, with the exception of the pump workβs effect on overall plant efficiency. The pumping power of the intermediate loop has already been shown to have very little effect on the temperature of the fluid. Pumping power in the intermediate loop will depend a great deal upon the size and type of heat exchangers used. In the primary fluid, pumping power is greater due to pressure drops in the core and in primary piping (for a loop design). In the ABR-1000 reference case each of the primary pumps in ABR-1000 requires 1.15 MW of power if perfectly efficient, based on a pressure head of 0.76 MPa and a flow rate of 90.9 m3/min. To overcome the friction pressure drops within intermediate piping and heat exchangers, the pump work of each intermediate loop pump is about 340 kW if perfectly efficient. Because centrifugal sodium pumps can be expected to have efficiencies between 70-85 % [Grandy and Seidensticker, 2007], the total pumping power required for the ABR-1000 plant is from about 7.0 MW to 8.5 MW for a 1000 MWth plant, including both primary and intermediate sodium pumps. Therefore, reducing pressure drops and quantifying pump work are certainly important from a plant efficiency standpoint. 4.2 Alternate Fluids in the Intermediate Loop Sodium has been used as the working fluid in the intermediate loop in SFRs due to its extremely good thermodynamic properties. Using other fluids has been considered as an option in previous research. Here, these results are reported so the reader is familiar with work that has already been completed. Elemental liquids, organics, inorganic salts, gases, and gas-solid suspensions were investigated in a study of thirty different heat transfer media by Cooper and Lee [1975]. They were compared on the basis of required heat transfer area, pumping power, melting points, and chemical reactivity. Their conclusions are summarized as follows: Liquid Metals: Heat transfer areas and pumping powers for liquid metals are all comparable to sodium, however, many react nearly as strongly with water. Work has been done on lead- bismuth eutectic reactors in numerous studies. These have been interesting since the solution of some practical problems in a βcomprehensive Russian development programβ [Hejzlar et al., 88PDF Image | Supercritical Carbon Dioxide Cycle Analysis
PDF Search Title:
Supercritical Carbon Dioxide Cycle AnalysisOriginal File Name Searched:
547500498.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 |