Force-heat coupling equipment sets burner to super-stoichiometric or sub-stoichiometric air ratio values to predominantly acquire heat or to derive electrical energy from fuel cell respectively

摘要

The arrangement has a fuel cell and a burner for heating a heat exchanger. The fuel cell is arranged in the burner exhaust gas flow. The burner can be operated super- or sub-stoichiometrically. A controller sets the burner to at least a first super-stoichiometric air ratio value to predominantly heat the heat exchanger to acquire heat and to at least one sub-stoichiometric a value to derive electrical energy. The arrangement has a fuel cell (10) and a burner (3), especially a gas burner, with which a heat exchanger can be heated. The fuel cell is arranged in the exhaust gas flow from the burner, which can be altered by a controller (28) so that it can be operated super- or sub-stoichiometrically, that is with an air ratio greater than or less than one. The controller sets the burner to at least one first super-stoichiometric air ratio value to predominantly heat the heat exchanger to acquire heat and to at least one sub-stoichiometric air ratio value to derive electrical energy from the fuel cell.