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A fuel cell internal temperature and humidity online measurement system

A fuel cell, internal temperature technology, applied in fuel cells, fuel cell control, fuel cell additives, etc., can solve the problems of high cost, complex equipment, large occupied volume, etc., and achieve the effect of high performance output

Active Publication Date: 2021-08-13
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Existing technologies mostly use the visible light observation method to qualitatively judge the water content state in the reaction gas channel of the fuel cell. However, the visible light observation method needs to set a transparent observation window on the fuel cell to be measured, which has a great impact on the output power of the fuel cell and cannot Quantitative measurement of water vapor content
In addition, there are methods such as neutron imaging, X-ray imaging, and nuclear magnetic resonance imaging to detect the water content inside the fuel cell. The equipment used in this imaging method is complex, the cost is high, and the volume is very large. fuel cell

Method used

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  • A fuel cell internal temperature and humidity online measurement system
  • A fuel cell internal temperature and humidity online measurement system
  • A fuel cell internal temperature and humidity online measurement system

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Embodiment

[0031] A fuel cell internal temperature and humidity online measurement system, such as figure 1 As shown, the fuel cell internal temperature and humidity online measurement system and method are used to collect gas temperature and humidity values ​​at multiple positions in the cathode and anode reaction gas flow fields of the fuel cell embedded with temperature and humidity sensors under operating conditions. The system includes a signal transceiver module 2 , a DC power supply 3 , a signal conversion recording module 4 and a sensor component 5 .

[0032] The structure of the fuel cell 1 is as Figure 2-3 As shown, it is composed of membrane electrode assembly 11 , graphite or metal bipolar plate 12 , current collector plate 13 , insulating plate 14 , end plate 15 and other components. The temperature and humidity information of the cathode and anode reaction gases inside the fuel cell are converted into electrical signals by the sensor assembly 5, processed by the signal tr...

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Abstract

The invention relates to an online temperature and humidity measurement system inside a fuel cell. The system includes a signal transceiver module connected to the fuel cell, a DC power supply connected to the signal transceiver module, and a signal conversion and recording module to detect the cathode and anode inside the fuel cell. A sensor assembly that responds to temperature and humidity information of the gas. Compared with the prior art, the invention can detect the internal temperature and humidity parameters of the fuel cell on-line, and analyze the water vapor content in the fuel cell in real time. In practical applications, the battery control strategy can be adjusted in real time according to the diagnosis results of the system to improve the efficiency and life of the fuel cell.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, in particular to an on-line measurement system for internal temperature and humidity of a fuel cell. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) is a power generation device that directly converts the chemical energy in hydrogen into electrical energy, and its power generation efficiency can reach more than 50%. The only product during the operation of the proton exchange membrane fuel cell is water, which is very friendly to the environment. At the same time, it has the characteristics of fast start-up, low operating temperature, and low noise. It is an ideal power source for future cars and drones. [0003] The product of the proton exchange membrane fuel cell in the power generation process is water. Studies have shown that the content and distribution of water inside the fuel cell directly affect the efficiency, stability and life of the fuel cell. On the one...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04313H01M8/0432H01M8/04492H01M8/2465H01M8/04291
CPCH01M8/04291H01M8/04313H01M8/0432H01M8/04328H01M8/04335H01M8/04492H01M8/045H01M8/04507H01M8/2465Y02E60/50
Inventor 邵恒邱殿凯彭林法易培云来新民
Owner SHANGHAI JIAO TONG UNIV
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