METHOD FOR DETERMINING AN AIR RATIO IN A BURNER FOR A FUEL CELL HEATER, AND FUEL CELL HEATER

摘要

The fuel cell heater (10) has a burner (16) with an ionization sensor (30) in the flame region and in which two different gases are fed to the burner for combustion, one of which originates from a gas preparation device, and a signal evaluation unit (32) that evaluates the ionization sensor signal and determines an actual value for the air number. One or more gas preparation device state parameter signals (34) are applied to the signal evaluation unit.