CO2 removal from air for alkaline fuel cells operating with liquid H2

PDF Publication Title:

CO2 removal from air for alkaline fuel cells operating with liquid H2 ( co2-removal-from-air-alkaline-fuel-cells-operating-with-liqu )

Previous Page View | Next Page View | Return to Search List

Text from PDF Page: 099

6.2 Improvements for continued testing 83 by some other method such as LN2 level control. The positioning of an additional thermocouple inside the cold end outlet header may improve the accuracy o f temperature based calculation. 6.2.1.2 Double heat exchanger configuration tests The cross-over valve used for this project, that operates at low temperature, limited the temperature range over which the warm end heat exchanger (later used as the H20-MHE) could be operated. The lower limit for fluid temperature passing through this valve, discussed in section 4.1.3, was -40°C or -60°C depending on whether it was operated or not. The actuator associated with this valve was pneumatic and would become inoperable and leak at low temperature. The cross-over valve and actuator induced an additional heat leak into the fluid passing through the valve. The warm end heat exchanger cool-down, discussed in section 5.3.3, was very slow. Once again the fluid exiting the warm side of the warm end heat exchanger and passing into the (cold) cross-over valve is limited in temperature to -60°C, which limits the rate at which this heat exchanger is cooled down. Replacing the cross-over valves and actuator used, with an arrangement designed for operation at cryogenic temperatures may alleviate these problems. 6.2.1.3 Mass spectrometric measurement of trace CO2 and water concentrations The mass spectrometer and associated sampling method used, were limited in being able to monitor continuously trace CO2 and water concentrations. The measurement of CO2 was hampered by it's adsorption within the vacuum system and the variation in CO2 concentration in the bottled air used for the tests. The limits on accuracy ofconcentration measurement were dependant on the ratio ofthe concentration to be measured to that of argon in air, since a relative analysis was used. The accuracy of the results obtained may be improved by performing an absolute calibration for these substances. This would allow functioning of the reversing heat exchanger at varied humidity levels to be investigated. Non-dispersive infrared analysis has been used elsewhere for trace CO2 measurements and may prove to be a more suitable method for CO2 measurement. 6.2.2 Vehicular application of the CO2 removal process Since this project has been successful in establishing the viability of the proposed new process for CO2 removal, it is suggested that further development proceed by testing I the apparatus with liquid hydrogen in a working system that includes an alkaline fuel cell. The issues of cross-over valves and actuator, cold end temperature control, and cross-over valve timing could be investigated in such a system. A working apparatus for vehicular application could be developed from this basis.

PDF Image | CO2 removal from air for alkaline fuel cells operating with liquid H2

PDF Search Title:

CO2 removal from air for alkaline fuel cells operating with liquid H2

Original File Name Searched:

35465756.pdf

DIY 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)