Abstract: A hydrogen production system has an automatic feeding device connected to a buffer tank, and a first valve controlling hydrogen-producing materials to be fed into the buffer tank or not. The buffer tank connects to a main reactor, and the hydrogen-producing materials in the buffer tank are controlled by a second valve to be fed into the main reactor or not. The main reactor connects to a hydrogen storing tank. A one-way check valve is mounted between the main reactor and the hydrogen storing tank to avoid hydrogen in the hydrogen storing tank flowing back to the main reactor. The hydrogen-producing materials in the main reactor undergo a chemical reaction to produce the hydrogen, and the hydrogen storing tank stores the hydrogen to provide fuel of a fuel cell for reducing transporting cost of the hydrogen and for enhancing safety of storing the hydrogen.

Abstract: A fuel cell power generating system has a fuel cell module which can generate electricity when oxygen and hydrogen are supplied to the fuel cell module and have a reaction therein. A cooling subsystem provides coolant to flow through the fuel cell module to take heat away therefrom. Heat in the coolant is used to heat at least one of fluid for heating and humidifying air before the air enters the fuel cell module and fluid for heating and humidifying the hydrogen before the hydrogen enters the fuel cell module.

Abstract: A system and method for gasflow management to ensure that the output pressure is within a safety range. Upon entering the input terminal, the input source may pass through a switch valve to reach a pressure-reducing valve so that the pressure is reduced to a reduced pressure level. Then, the reduced pressure level is checked by the release valve and is lowered if the reduced pressure level is higher than the cutoff pressure associated with the release valve. The reduced pressure level is also sensed by a pressure sensor so that the controller can shut off the operation if the pressure reading is not within a safety range.