Fuel cell automobile air supply system based on organic Rankine cycle and control method thereof
A fuel cell and Rankine cycle technology, applied in the direction of fuel cell control, fuel cells, fuel cell additives, etc., can solve the problems of undesigned air compressors, inability to meet the precise control of the air volume into the stack, and unguaranteed problems, to achieve Effect of reducing parasitic loss, reducing parasitic loss, and lightening workload
Pending Publication Date: 2019-07-05
JILIN UNIV
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Problems solved by technology
[0005] 1. The invention does not design an air compressor, so when the vehicle is used, it cannot guarantee that the vehicle can provide sufficient air volume when the vehicle is started or runs at high power, and at the same time it cannot satisfy the precise control of the vehicle's air volume into the pile under complex working conditions
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[0051] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0052] Such as figure 1 As shown, the present invention provides an air supply system for a fuel cell vehicle based on an organic Rankine cycle, comprising: a booster circuit, which includes a fuel cell stack 100, a turbine 110, a first compressor 120, and a second compressor connected in sequence Machine 130, first intercooler 140, air compressor 150, heat exchanger 160, second intercooler 170 and humidifier 180; waste heat utilization circuit, which includes organic working medium pump 210 and heat exchanger 160 connected in sequence , an expander 220 and a condenser 230; the first compressor 120 is connected to external air, and an air filter 190 is connected to the side connected to the external air, and the expander 220 is connected to the second compressor 130, It is u...
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The invention discloses a fuel cell automobile air supply system based on an organic Rankine cycle. The system comprises a boosting circuit and a waste heat utilization circuit, wherein the boosting circuit comprises a fuel cell stack, a turbine, a first compressor, a second compressor, a first intercooler, an air compressor, a heat exchanger and a second intercooler, which are sequentially connected; the waste heat utilization circuit comprises an organic working fluid pump, a heat exchanger and an expander connected in sequence; the first compressor is connected to the outside air, the expander is connected to the second compressor for driving the second compressor to operate; when the waste heat utilization circuit is opened, the waste heat of the air compressor flows into the heat exchanger to heat the organic working medium and drive the expander to compress the second compressor; when the waste heat utilization circuit is closed, the second compressor does not operate, and the boosting circuit is a low-pressure boosting circuit. The invention also provides a control method for a fuel cell automobile air supply system based on an organic Rankine cycle.
Description
technical field [0001] The present invention relates to the field of fuel cell technology, and more specifically, the present invention relates to an air supply system for a fuel cell vehicle based on an organic Rankine cycle and a control method thereof. Background technique [0002] A proton exchange membrane fuel cell is a device that directly converts chemical energy into electrical energy. Because of its advantages of high efficiency, zero emission, low noise and low operating temperature, it is considered to be an ideal substitute for future vehicle power sources. In proton exchange membrane fuel cells, hydrogen and oxygen are generated at the anode and cathode respectively. The electrochemical reaction produces an electric current. The oxygen pressure in the fuel cell is directly related to the performance of the fuel cell system. Increasing the air supply pressure can not only increase the power density of the fuel cell system, but also reduce the system size and im...
Claims
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Login to View More IPC IPC(8): H01M8/04298H01M8/04089H01M8/04007H01M8/0438H01M8/0432
CPCH01M8/04298H01M8/04201H01M8/04007H01M8/04425H01M8/04373H01M2250/20Y02E60/50
Inventor 闵海涛王博石于远彬孙维毅黄世佩曹起铭李卓昂张明智
Owner JILIN UNIV