Abstract: A portable fuel gas system includes: a portable enclosure; a processor; a fuel gas supply manifold; a throttle in fluid communication with the fuel gas supply manifold. The fuel gas supply manifold includes a first pressure zone and a second pressure zone separated from one another by the throttle; a fuel gas shutoff valve in the first pressure zone, in electrical communication with the processor and operative to control a flow of a fuel gas in the fuel gas supply manifold; a vent valve in fluid communication with the fuel gas supply manifold and in electrical communication with the processor; and a pressure transmitter in fluid communication with the fuel gas supply manifold and in electrical communication with the processor.

Abstract: A burner resistant to flashback is disclosed. In one embodiment the burner includes a wall configured to contain a fuel gas within an enclosed volume of the burner. The burner includes a plurality of apertures formed in the wall. The apertures provide fluid communication from the enclosed volume to an environment surrounding the burner. The plurality of apertures have an effective diameter smaller than a quenching distance of the fuel gas.

Abstract: In one example, a portable fuel gas system includes: a portable enclosure; a fuel gas supply manifold; a throttle in fluid communication with the fuel gas supply manifold. The fuel gas supply manifold includes a first pressure zone and a second pressure zone separated from one another by the throttle; and a fuel gas shutoff valve in fluid communication with the fuel gas supply manifold and operative to control a flow of a fuel gas in the fuel gas supply manifold, wherein the fuel gas supply manifold, the throttle, and the fuel gas shutoff valve are disposed within the portable enclosure.

Abstract: A pressure control device including a valve with a fluid inlet and a fluid outlet, wherein the fluid inlet is in selective fluid communication with the fluid outlet. A heat collector is adapted to cover portion of an envelope of a pressure vessel and operative to receive heat from a heat source. A sensing element is in thermal communication with the heat collector and operative to receive the heat from the heat source. Operative to receiving heat from the sensing element receives the heat, the sensing element actuates the valve to establish the selective fluid communication between the fluid inlet and the fluid outlet.

Abstract: In one example, a portable fuel gas system includes: a portable enclosure; a fuel gas supply manifold; a throttle in fluid communication with the fuel gas supply manifold. The fuel gas supply manifold includes a first pressure zone and a second pressure zone separated from one another by the throttle; and a fuel gas shutoff valve in fluid communication with the fuel gas supply manifold and operative to control a flow of a fuel gas in the fuel gas supply manifold, wherein the fuel gas supply manifold, the throttle, and the fuel gas shutoff valve are disposed within the portable enclosure.

Abstract: A computer-implemented method of supplying a fuel gas to a fueling system is disclosed. The method may include pre-fill inerting the fueling system; leak-checking the fueling system; charging a pilot subsystem with the fuel gas; filling the fueling system with the fuel gas; and post-fill inerting the fueling system. In many implementations, the fueling system may be associated with a boat. The fuel gas may be hydrogen and may be supplied to a fuel cell that converts the hydrogen to electrical energy to power a propulsion system of the boat.

Abstract: A computer-implemented method of supplying a fuel gas to a fueling system is disclosed. The method may include pre-fill inerting the fueling system; leak-checking the fueling system; charging a pilot subsystem with the fuel gas; filling the fueling system with the fuel gas; and post-fill inerting the fueling system. In many implementations, the fueling system may be associated with a boat. The fuel gas may be hydrogen and may be supplied to a fuel cell that converts the hydrogen to electrical energy to power a propulsion system of the boat.