JP2007200679A5 - - Google Patents

Claims (2)

A fuel cell that generates electricity using a hydrogen-containing gas and an oxidant, a cooling water path through which cooling water for cooling the fuel cell flows, and heat is recovered from the cooling water flowing through the cooling water path and stored as hot water A hot water storage path, a water recovery path for recovering moisture in the exhaust gas of the fuel cell, a heating section for heating at least one of the cooling water path, the hot water storage path, and the water recovery path, and the heating section. a control unit for operating, and a fault detection unit for detecting an abnormality of the controller, a fuel cell system for operating said heating unit with decreasing outdoor air temperature, the abnormality is detected by the abnormality detection unit If the first switch is connected by the control unit with a decrease in the outside air temperature , the heating unit operates, and an abnormality of the control unit is detected by the abnormality detection unit , the outside temperature To decline Fuel cell system, wherein a second switch that will be mechanically connected There are connected, the heating unit is operated. When the temperature detection unit that detects the outside air temperature and the temperature detection unit is not out of order, the first switch is connected by the control unit as the outside air temperature decreases, the heating unit operates, 2. The fuel cell system according to claim 1 , wherein when the temperature detection unit fails, the second switch is connected with a decrease in outside air temperature, and the heating unit operates .