OPTIMIZED PURGE METHOD FOR THE DURABLE FUEL CELL SYSTEMS IN BELOW ZERO TEMPERATURE CONDITION

摘要

PURPOSE: An optimized purging method of a durable fuel cell system is provided to properly remove water from the system with the small amount of energy, and to secure the high energy efficiency. CONSTITUTION: An optimized purging method of a durable fuel cell system at the below zero temperature condition enables the fuel cell system to have the minimum residual water volume by controlling the purging time or the flow amount of purge gas while maintaining the temperature range of 75~95 deg C of the fuel cell system, when the fuel cell system shuts down.