Abstract
Wavy-fin is used in the heat exchanger of the fuel cell for the characteristic of low-pressure resistance. The heat transfer efficiency is reduced because the heat transfer surface is contaminated by precipitates. In the heat exchanger of the fin type, the meandering channel is difficult to accumulate the sediment. But in the field to use the cooling water a lot of impurities, the heat exchanger with fins will not be able to use the channel of the heat exchanger is clogged. In this study, we investigated by changing systematically the value of the amplitude, wave length and channel pitch. As the result of this investigation, the difference of the channel shape was found to affect the heat transfer and pressure loss.
