Fuel cell has pumped feedback loop to control the water content based on input and output moisture sensors

摘要

The system has the fresh cathode gas compressed (1) and fed to the fuel cell (BZ). At inlet and outlet there are moisture sensors (3,4) that control a compressor (2) coupled into a feedback loop to provide mixing with the unused cathode gas. This holds the moisture level to a set level in a comparison process. An on off valve (5) controls the feedback connection.