TY - JOUR
TI - Effect of heat exchanger flow processes on the phase change cooling system of vehicle fuel cells
AU - Bai Jing
AU - Chen Mingzhi
AU - Cui Siqi
AU - Fan Huifang
AU - He Siyuan
AU - Wang Lejian
AU - Li Huixin
AU - Li Cheng
AU - Gu Kexuan
JN - Thermal Science
PY - 2025
VL - 29
IS - 3
SP - 1935
EP - 1942
PT - Article
AB - In response to the issues of high heat dissipation density, large heat  generation, and low heat dissipation efficiency of proton exchange membrane  fuel cells, this paper develops a vehicle fuel cell heat dissipation  performance test bench. The bench employs HFE-7100 phase change cooling  fluid and utilizes three distinct configurations of heat exchangers under  ambient conditions of 35°C. The heat dissipation characteristics of the  system are then analyzed under varying working fluid-flow rates and fan  speeds. The results demonstrate that, when subjected to the same fan speed  and working fluid-flow rate, the system with three-process heat exchangers  exhibits the most optimal heat dissipation performance. The heat dissipation  of the system is observed to be 7% to 16.7% higher than that of the  two-process configuration, and 5.1% to 7.2% higher than that of the  four-process configuration. Moreover, the energy efficiency ratio of the  system ranges from 18.58 to 26.62, indicating a notable reduction in energy  consumption when compared to the two-process (3.9% to 10.3% improvement)  and the four-process (7.4% to 12.7% improvement).