The hydrogen circulation pump(HCP)is an important power component of the hydrogen fuel system,used to recover the unconsumed hydrogen from the anode and transport it back to the inlet of the battery stack to improve the hydrogen utilization efficiency.The influences of helix angle on the performance of aconventional HCPis analyzed.The results show that as the rotor helix angle increases from 0° to 60°,the average flow rate of the HCP shows a trend of first decreasing and then increasing,with a minimum value at the helix angle of 22.5 ° and a maximum value at the helix angle of 60°.The flow and pressure pulsation factors of the HCP show a trend of first increasing and then decreasing,with a small increase but a significant decrease,and have a minimum value at the helix angle of 60°.The research results show that the optimal helix angle for therotor of the HCP is 60°,which plays an important role in improving the overall performance of the HCP.
维普
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