Abstract: A fuel cell system, with an air flow system includes a first thermal zone, a second thermal zone, an air blower provided between the first and second thermal zones. The first thermal zone is connected to an inlet port of the fuel cell system. The second thermal zone is connected to an outlet port of the fuel cell system. The air blower is configured to draw in air from the first thermal zone and provide the air to the second thermal zone.

Abstract: A safety control system for a fuel-consuming apparatus includes a switching assembly. The switching assembly includes a first end electrically connected to a power source node, a second end electrically connected to an input power node of a fuel safety shutoff valve of the fuel-consuming apparatus, and one or more switch units serially connected between the first and second ends. Each of the switch units is configured to be switched on or off based on a corresponding one of one or more environmental conditions of the fuel-consuming apparatus. An electrical connection path between the first and second ends is deactivated upon at least one of the one or more switch units being switched off to stop supplying of fuel into the fuel-consuming apparatus.

Abstract: A fuel cell system, with an air flow system includes a first thermal zone, a second thermal zone, an air blower provided between the first and second thermal zones. The first thermal zone is connected to an inlet port of the fuel cell system. The second thermal zone is connected to an outlet port of the fuel cell system. The air blower is configured to draw in air from the first thermal zone and provide the air to the second thermal zone.