PDF Publication Title:
Text from PDF Page: 006
2600 2400 2200 2000 1800 1600 1400 1200 1000 15 17 19 21 23 25 27 29 31 Impeller diameter (mm) FIGURE 3. The relation between rotational speed and diameter at U/C0 = 0.68 and stationary shroud wall is adjusted between 0.2 mm and 0.3 mm at the time of assembling. The performance of a turbo-expander can be described by turbine isentropic efficiency , which is defined as below. hin hout (2) hin houtS Where hout:Actualturbineoutletenthalpy TEST RESULTS Thermodynamic performance tests of the turbo-expander were conducted with the prototype refrigerator. FIGURE 4 is the flow diagram and photograph of the cold box. The cold box contains a heat-exchanger unit, a turbo-expander and an electric heater, piping and valves. Neon gas is compressed by the reciprocating compressor from 0.5 MPa to 1 MPa and the flow rate is 0.15 kg/sec. The high pressure line is controlled by the bypass valve V1. The heat-exchanger unit is a plate-fin type. The high pressure gas is cooled by the low pressure return gas. In the turbo-expander, the neon is expanded from 1 MPa to 0.5 MPa and the turbine outlet temperature is finally cooled down to about 57 K. The heater after the turbine warms the cold gas from the turbine outlet in order to obtain the specified refrigeration temperature. FIGURE 5 shows the cool-down data curve of the turbo-expander. The time at 0 min indicates the startup of the reciprocating compressor. By adjusting the compressor bypass flow, the turbine outlet temperature decreases due to isentropic expansion at about 30 min. The turbine inlet temperature is cooled down to about 70 K in 360 min. TABLE 2 shows the measured values of the turbine operating condition at the maximum turbine efficiency. Synchronous speed of the alternator is set at 1400 Hz with a variable frequency drive. Since the turbine pressure ratio increases during the cool down operation, the turbine load increases also. This means that the rotational speed rises up slightly from 1400 to 1414 rev/sec because the alternator is driven at a higher speed than the synchronous speed. 899 Rotational speed (rev/sec)PDF Image | NEON CRYOGENIC TURBO-EXPANDER WITH MAGNETIC BEARINGS
PDF Search Title:
NEON CRYOGENIC TURBO-EXPANDER WITH MAGNETIC BEARINGSOriginal File Name Searched:
3422446.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 |