固体高分子形燃料電池 (PEFC) の性能に及ぼすガス流路と運転条件の検討

概要

論文の詳細を見る
We examined the relation between the performance and the gas flow channel of polymerelectrolyte fuel cell (PEFC). We made the gas separator plate by stainless steel with the minuteflow channels made by etching technology. Experiments were made on the influence of flowchannel geometry, gas flow rate, gas-flow patterns and the temperature of cell.Results are as follows;(l)The highest performance was able to obtain by setting the gas flow channel of t(ch)=O.67[mm],and rib t(r)=1.84[mm]. (t(ch) : width of gas flow channel, t(r): width of rib)(2)We defined α(rch) that was the ratio of the width of the gas flow channel and rib of theseparator. And it was able to be confirmed to obtain high power by setting 1(ch)=0.67 [mm] andα(rch) = 1～3.(3)Power output was able to be maintained by no water adding at the temperature below about40°C in case of counter flow, because the generated water at the cathode moved to the anode.(4)It was able to keep high performance by the condition of the hydrogen gas temperature of70°C.
宮崎大学の論文