Hydrogen humidifier for portable fuel cells with polymer electrolyte membranes, employs hot air from cell cooling system to achieve high humidity

摘要

The side facing the airflow (1) is specially-profiled for heat intake, and is made of a high thermal conductivity metal. Thermal capacity of the humidifier is small, including the supply and outlet connections (2, 3) which include non-return valves (7). The inspection port (4) is adhered in place, and shows the internal liquid level. A topping-up tube (6) is let into the base and has a valve (5) to shut it off.