Study on Heat and Mass Transfer Performance of Cathode Membrane Humidifier in Fuel Cell System

The experimental study on the heat and mass transfer performance of membrane humidifier in high-power atmospheric fuel cell system cathode side was carried out, and the main factors affecting the performance of membrane humidifier were determined. The mathematical model of heat and mass transfer of...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2020-11, Vol.581 (1), p.12011
Main Authors: Xingsheng, Lao, Yong, Liu, Chunhui, Dai, Jun, Wu, Zhenxing, Zhao
Format: Article
Language:English
Subjects:
Air flow
Air intakes
Air temperature
Cathodes
Diffusion coefficient
Diffusion rate
Flow rates
Flow velocity
Fuel cells
Fuel technology
Heat
Heat transfer
Inlet temperature
Mass transfer
Mathematical analysis
Mathematical models
Membranes
Model testing
Moisture content
Water content
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Summary:The experimental study on the heat and mass transfer performance of membrane humidifier in high-power atmospheric fuel cell system cathode side was carried out, and the main factors affecting the performance of membrane humidifier were determined. The mathematical model of heat and mass transfer of membrane humidifier was established to study these factors. Mechanism of influence on membrane humidifier performance is studied with a humidifier heat and mass transfer model. Results show that reducing the operating pressure of the humidifier, increasing the air flow rate, and increasing the intake air temperature are beneficial to increase the diffusion coefficient; reducing the air flow rate and lowering the dry air inlet temperature are beneficial to reducing the water content gradient in the membrane.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/581/1/012011