PDF Publication Title:
Text from PDF Page: 089
confirm the analysis that is provided here. A more complete and thorough energy balance still needs to be applied, but for the present it appears that except for losses (windage, bearing friction, pump-out vane losses, electrical, magnetic, thermal heat losses) the TAC appeared to be approaching break-even operating conditions. Future testing will increase the heater power to 260 kW, at which time we hope to more clearly identify the break-even operating point for this very small turbine. The turbine that we are using was only meant to provide some turbo assist and was not designed to produce power in this loop. It is also important to get the loop operating with gas foil bearings as they will be needed to truly reach steady-state conditions. A few other observations are important to make. First, the loop operates very much like the small low pressure closed Brayton loop that Sandia has been operating for the past 3 years (Wright, 2006). One observation is that as the shaft speed increases the high pressure leg increases while the low pressure leg decreases (see Figure 5-38). The magnitude of the pressure rise is controlled by the ratio of volumes in the low pressure and high pressure leg’s of the loop and the fill inventory. Also we observe that as the loop heats, all the pressures increase. Probably the most striking observation is that because of the high power density and low mass of the system, the loop can change temperatures and pressures very rapidly. For example, in these tests the structure and gas temperatures in the loop essentially found new equilibrium temperatures in 1-2 minutes at 50% speed and at 10% power. Therefore, at full speed and full power the new equilibrium values will be observed in just 10-15 seconds. Thus the S-CO2 Brayton loop has a very rapid time response. 350 300 250 200 150 100 50 0 11960 11980 -50 12000 12020 Time(s) 12040 12060 50000 45000 40000 35000 30000 25000 20000 15000 10000 5000 12080 0 Heater and Gas Chiller Power CBC_090217_1426 Heater Pwr (kW) Chiller Pwr (kW) Htr-Chill Pwr (kW) T-(C+W+F) Meas TAC Pwr (kW) RPM1 Figure 5-41: Estimate of power removed from the heater (magenta) and lost in the gas chiller assuming constant flow around the loop. 89 Heater and Chiller Power (kW) rpmPDF 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 (Standard Web Page)