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US 2022/0320555 A1Published application
Fuel Cell Generator with Cryogenic Compression and Co-Generation of Liquefied Air
OwnerJay Stephen Kaufmaninventor
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Abstract
The present invention provides a high efficiency prime mover with phase change energy storage for distributed generation and motor vehicle application. Phase change storage minimizes energy required for refrigerant liquefaction while reducing fuel consumption and emissions.
Claims38
A fuel cell generator with cryogenic compression and co-generation of liquefied fluid, comprising:
- a liquefier compressor that compression heats atmospheric air to heated air;
- an aftercooler in fluid communication with said liquefier compressor such that said liquefier compressor provides the heated air to said aftercooler and wherein said aftercooler cools the heated air to ambient air;
- a cryo-fluid supply, comprising:
- a fluid liquefier in fluid communication with said aftercooler such that said aftercooler provides the ambient air to said fluid liquefier and wherein said fluid liquefier liquefies at least a first portion of the ambient air into liquid fluid;
- a liquid fluid dewar in fluid communication with said fluid liquefier such that said fluid liquefier provides at least a first portion of the liquid fluid to said liquid fluid dewar and wherein said liquid fluid dewar stores at least the first portion of the liquid fluid;
- and
- a liquid fluid feed pump in fluid communication with said fluid liquefier and said aftercooler such that said fluid liquefier provides at least a second portion of the liquid fluid to said liquid fluid feed pump and said liquid fluid feed pump pumps at least the second portion of the liquid fluid to said aftercooler;
- an air pre-heater in fluid communication with said aftercooler such that said aftercooler provides said air pre-heater with cathode intake air and wherein said air pre-heater heats the cathode intake air;
- a fuel cell generator that generates electricity through chemical reaction, said fuel cell generator comprising:
- a cathode channel where a cathode reduction reaction occurs and that produces negative oxygen ions, wherein said cathode channel expels oxygen depleted air;
- an anode channel where an anode oxidation reaction occurs;
- a solid state electrolyte disposed between said cathode channel and said anode channel, wherein the negative oxygen ions from said cathode channel pass through said solid state electrolyte;
- and
- a fuel supply that provides a fuel to said anode channel, wherein said anode channel expels anode steam and residual fuel;
- wherein said air pre-heater is in further fluid communication with said cathode channel such that said air pre-heater provides the heated cathode intake air to said cathode channel;
- and
- means for driving said liquefier compressor.
14 more elements
A method for operating a fuel cell system with co-generation means, said method comprising the steps of:
- maintaining constant electricity generation in the fuel cell;
- determining a time of reduced demand for the electricity generated in said maintaining step;
- providing excess generated electricity generated in said maintaining step during the time of reduced demand determined in said determining step to a fluid liquefier;
- and
- producing liquid fluid.
2 more elements
Dependencies are inferred from the claim text.