Airborne combined cooling and heating system and method for all-electric aircraft
A technology of cogeneration of cooling, heating and power, aircraft, applied in the direction of machine operation, refrigeration and liquefaction, electrochemical generators, etc., can solve the problem of insufficient utilization of waste heat of power generation devices, low thermal economy of the system, and environmental control High energy consumption of system electric air conditioner
Inactive Publication Date: 2009-11-11
BEIHANG UNIV
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Problems solved by technology
[0007] Aiming at the above-mentioned problems in the prior art, the present invention creatively provides an airborne cooling, heating and power cogeneration scheme and an airborne cooling and heating system that are suitable for aircraft and combine low-temperature proton exchange membrane fuel cells and lithium bromide integrated membrane absorption waste heat air conditioners. Cogeneration system, in which, the proton exchange membrane fuel cell provides all the electric energy, including the electric energy required for driving the electric motor and other electronic equipment and transmission equipment of the aircraft, and the lithium
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[0031] The airborne cooling, heating and power cogeneration system of the invention comprises a low-temperature proton exchange membrane fuel cell and a lithium bromide integrated membrane absorption waste heat air conditioner.
[0032] Fuel cells can efficiently and environmentally friendly convert the chemical energy stored in the fuel into electrical energy, and hydrogen is the best fuel for fuel cells.
[0033] A proton exchange membrane fuel cell (PEMFC) is a type of fuel cell, and the electrolyte of the proton exchange membrane fuel cell is composed of an ion-conducting polymer. The two sides of the electrolyte are electrodes composed of porous catalysts. The three-layer structure is tightly bonded together to form a very thin "cathode-electrolyte-anode" structure, which is called a three-in-one membrane electrode assembly (MEA). Usually multiple MEAs are connected in series by bipolar plates and used in battery stacks.
[0034] The polymer electrolyte of low-temperatur...
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An all-electric aircraft is an important development direction for the modern aircraft, and the invention aims at the larger cooling and heating electric charge due to the coexistence of energy resources, an environmental control and a thermal management system and provides an airborne combined cooling and heating system, wherein the system is applicable to the all electric aircraft and utilizes the residual heat generated by a proton exchange membrane fuel cell to drive a lithium bromide absorption-type residual heat air conditioner so as to realize refrigeration and heat supply, thus solving the key problems of restricting the further development of the all-electric aircraft technology such as insufficiently utilized power generation residual heat objectively existing in divided production and supply of the cooling and heating power at home and abroad, excessively high environmental control system energy consumption, excessively large charge of the thermal management system, and the like. Furthermore, the invention also specifically introduces the improvement on the traditional proton exchange membrane fuel cell and the lithium bromide absorption-type residual heat air conditioner, thus leading the two devices to meet the use requirement of the all-electric aircraft.
Description
Technical field: [0001] The present invention relates to an airborne cooling, heating and power cogeneration system and method applied to a small aircraft, specifically utilizing waste heat generated by a proton exchange membrane fuel cell to drive a lithium bromide-integrated membrane absorption waste heat air conditioner for refrigeration and heat supply so as to realize cooling and heating Airborne combined cooling, heating and power generation systems and methods for cogeneration. Background technique: [0002] An all-electric aircraft is an aircraft in which not only the hydraulic, pneumatic and mechanical systems are replaced with electrical systems but also the propulsion system is driven with electrical energy. [0003] All-electric aircraft is an important development direction of modern aircraft technology. It is of great academic significance and application prospect to carry out cutting-edge research and exploration on its energy, environmental control, and therm...
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Login to view more IPC IPC(8): F25B27/02F25B15/06H01M8/04H01M8/04029
CPCY02B30/625Y02E60/50Y02A30/274Y02P70/50
Inventor 李运泽周湘杰杨群刘东晓王玉莹
Owner BEIHANG UNIV
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