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>> A proton exchange membrane fuel cell (PEMFC) produces only water at cathode by an electrochemical reaction between hydrogen and oxygen. The generated water is transported across the membrane from the cathode to the anode. The transported water collected in water-trap and drained to the cathode within the humidifier outlet. If the condensate water is not being drained at the appropriate time, condensate water in the anode can cause the performance degradation or fuel efficiency degradation of fuel cell by the anode flooding or unnecessary hydrogen discharge. In this study, we proposed an optimization method of condensate water drain logic for the water drain performance and the water drain algorithm as considered the condensate water generating speed prep emergency case. In conclusion, we developed the water management strategy of fuel processing system (FPS) as securing fuel efficiency and operating stability.

han-guk suso mit sin eneoji hakoe nonmunjip/han'gug su'so mich sin e'neoji haghoe nonmunjib

Optimization of Condensate Water Drain Logic Depending on the Characteristics of Drain Valve in FPS of Fuel Cell Vehicle and Development of Anode Water Management Strategy to Achieve High Fuel Efficiency and Operational Stability