PDF Publication Title:
Text from PDF Page: 061
into the rotor/stator cavity. It is possible to cool the CO2 so much that it freezes. When this happens it is generally very difficult to start spinning the rotor shaft regardless of whether ball bearings or gas-foil bearings are used. Table 5.2: Approximate design values for the S-CO2 windage loss calculations. Rotor Cavity Property Radius Shaft speed Gap Effective length of rotor Viscosity of CO2 Maximum density of CO2 at (7690 kPa & 320 K) V alue 25.4 mm 75,000 rpm 3.175 mm 168 mm ~1.6x10-5Pas 0.213 kg/liter Figure 5-14 illustrates the rotor windage loss and how it varies as a function of cavity pressure. Unfortunately, at 320 K (the maximum assumed cavity temperature) and 900 psia (the maximum assumed cavity pressure that is very near the critical pressure, 1115 psia), the losses are high. At these values the rotor cavity windage losses are expected to be on the order of 35 kW-40 kW, which nearly equals the capability of the motor control system and the pumping power for the compressor. Clearly, this magnitude of power loss is unacceptable. To avoid these windage losses we used a turbomachinery design that lowers the rotor cavity pressure. Windage Rotor Loss as a function of Cavity Pressure 4 Windage Losses versus Rotor Cavity Pres. Near Critical Pressure Near Cavity Design Pressure 4 3.74910 4 10 40 v co2D2 0104 4 3 10 30 4 1 10 10 5.749103 0 100 200 0 300 400 500 600 700 800 900 1000 182.971 p ( v 300 K) 921.944 c o2 Pressure (psia) ps i Pressure (psia) Figure 5-14: Calculated windage loss for the S-CO2 turbo-alternator-compressor as a function of rotor cavity pressure. 61 Power (kW)PDF Image | Operation and Analysis of a Supercritical CO2 Brayton Cycle
PDF Search Title:
Operation and Analysis of a Supercritical CO2 Brayton CycleOriginal File Name Searched:
100171.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 |