A mobile heating device, comprising a heater assembly including a fuel chamber, and a fuel supply line for supplying liquid fuel to the heater assembly, where the heater assembly further includes an evaporator receiving arrangement for evaporating liquid fuel, said arrangement comprising an evaporator receiving body for receiving an evaporator element for distributing and evaporating liquid fuel, where the fuel supply line comprises a supply pipe with an inlet for inputting fuel and an outlet for outputting fuel to the combustion chamber, where the fuel supply line further includes an emptying device for partly or completely emptying the fuel supply line through the outlet.

A mobile heating device, comprising a heater assembly including a fuel chamber, and a fuel supply line for supplying liquid fuel to the heater assembly, where the heater assembly further includes an evaporator receiving arrangement for evaporating liquid fuel, said arrangement comprising an evaporator receiving body for receiving an evaporator element for distributing and evaporating liquid fuel, where the fuel supply line comprises a supply pipe with an inlet for inputting fuel and an outlet for outputting fuel to the combustion chamber, where the fuel supply line further includes an emptying device for partly or completely emptying the fuel supply line through the outlet.

A vaporized fuel introduction apparatus introduces vaporized fuel to an intake system that includes a compressor housing that houses a compressor impeller and an intake duct that is coupled to an upstream side of the compressor housing. The vaporized fuel introduction apparatus includes a circulation path, a vaporized fuel introduction path, and an ejector mechanism. The circulation path is made up of a housing-side flow path provided as a single body with the compressor housing and a duct-side flow path provided as a single body with the intake duct. The circulation path circulates compressed air flowing in a portion of the compressor housing which is downstream of the compressor impeller to the intake duct. The vaporized fuel introduction path is coupled to the circulation path and guides the vaporized fuel. The ejector mechanism is provided in the circulation path.

A reciprocating piston cryogenic pump has been suspended from stroking when process fluid discharge temperature from a vaporizer dropped below a threshold to prevent freezing of a heat exchange fluid circulating through the vaporizer and damage to downstream components. Suspension of the pump results in a decrease of process fluid pressure downstream of the vaporizer, which is undesirable. In the present technique, a temperature is monitored correlating to process fluid temperature downstream of the vaporizer. The amount of process fluid discharged from the pump in each cycle is adjusted as a function of the temperature such that the average residence time of the process fluid in the vaporizer is increased as the discharge amount decreases, increasing process fluid discharge temperature. The average mass flow rate of the process fluid through the vaporizer is unchanged regardless of pump discharge amount such that process fluid pressure downstream of the vaporizer is maintained.

A reciprocating piston cryogenic pump has been suspended from stroking when process fluid discharge temperature from a vaporizer dropped below a threshold to prevent freezing of a heat exchange fluid circulating through the vaporizer and damage to downstream components. Suspension of the pump results in a decrease of process fluid pressure downstream of the vaporizer, which is undesirable. In the present technique, a temperature is monitored correlating to process fluid temperature downstream of the vaporizer. The amount of process fluid discharged from the pump in each cycle is adjusted as a function of the temperature such that the average residence time of the process fluid in the vaporizer is increased as the discharge amount decreases, increasing process fluid discharge temperature. The average mass flow rate of the process fluid through the vaporizer is unchanged regardless of pump discharge amount such that process fluid pressure downstream of the vaporizer is maintained.

A device includes a chamber, a lid, heating elements, a base, and a controller. The chamber is a structure containing a inner cavity, the base is below the chamber, and the heating elements are between a lower surface of the chamber and the base. Cooling fins are in the inner cavity connected to a lower surface of the inner cavity and are close to the heating elements. Channels for liquid circulation are provided between fins and between the fins and an inner wall of the chamber. The lid is above the chamber and seals the inner cavity so that the inner cavity is closed. Gas outlet ports are on the lid. Due to the cooling fins, when the heating elements heat liquid fuel in the inner cavity, the liquid fuel is heated uniformly, and the gasification process is stable and controllable, avoiding explosive boiling of the liquid fuel.

A device includes a chamber, a lid, heating elements, a base, and a controller. The chamber is a structure containing a inner cavity, the base is below the chamber, and the heating elements are between a lower surface of the chamber and the base. Cooling fins are in the inner cavity connected to a lower surface of the inner cavity and are close to the heating elements. Channels for liquid circulation are provided between fins and between the fins and an inner wall of the chamber. The lid is above the chamber and seals the inner cavity so that the inner cavity is closed. Gas outlet ports are on the lid. Due to the cooling fins, when the heating elements heat liquid fuel in the inner cavity, the liquid fuel is heated uniformly, and the gasification process is stable and controllable, avoiding explosive boiling of the liquid fuel.

The invention provides a method for combusting of a hybrid rocket fuel, comprising supplying aqueous solution of hydrogen peroxide to a combustion chamber provided with a solid fuel, wherein a concentration of hydrogen peroxide in the aqueous solution of hydrogen peroxide is less than 65% by weight, and the method for combusting comprises at least one of: (i) supplying oxygen and the aqueous solution of hydrogen peroxide to the combustion chamber, and (ii) heating the aqueous solution of hydrogen peroxide before supplying the aqueous solution of hydrogen peroxide to the combustion chamber.

The invention provides a method for combusting of a hybrid rocket fuel, comprising supplying aqueous solution of hydrogen peroxide to a combustion chamber provided with a solid fuel, wherein a concentration of hydrogen peroxide in the aqueous solution of hydrogen peroxide is less than 65% by weight, and the method for combusting comprises at least one of: (i) supplying oxygen and the aqueous solution of hydrogen peroxide to the combustion chamber, and (ii) heating the aqueous solution of hydrogen peroxide before supplying the aqueous solution of hydrogen peroxide to the combustion chamber.

This invention reduces the amount of carbon monoxide introduced by a combustion system to the atmosphere, by furnishing a systems approach to optimize the amount of oxygen to be chemically combined with fuel upon ignition of both allowing the correct amount of carbon to combine with the correct amount of oxygen thus fully release the thermal energy stored therein. By so furnishing the level of oxygen with carbon of the fuel, more carbon dioxide is produced thus proportionally reduces the amount of carbon monoxide released to the atmosphere. The invention provides a heating system that surpasses the net and gross efficiency performance of a natural gas burner.