The invention discloses a high efficiency combustion control system and a method thereof. A high-efficiency combustion control system includes a gasification unit, a gas remixing zone coupled to the gasification unit, a combustion unit coupled to the gas remixing zone; a first gas detecting unit disposed in the gasification unit; a second gas detecting unit disposed in the remixing gas region; and an air supply unit coupled to the gas remixing zone. The first gas detecting unit and the second gas detecting unit detect the concentration of a specific gas of the first gaseous fuel or the second gaseous fuel respectively. And air is supplied to the liquid fuel or the first gaseous fuel according to the gas concentration, so that the gasification rate is changed, and the calorific value is changed accordingly to obtain the optimal calorific value and the optimal combustion efficiency.

Described herein are catalytic heating systems, comprising catalytic reactors and dual-mode fuel evaporators, and methods of operating such systems. A dual-mode fuel evaporator is thermally coupled to a catalytic reactor and comprises an electric heater used for preheating the evaporator to at least a fuel-flow threshold temperature. Upon reaching this threshold, the liquid fuel, such as ethanol or methanol, is flown into the evaporator and evaporates therein, forming vaporized fuel. The vaporized fuel is mixed with oxidant, and the mixture is flown into the catalytic reactor where the vaporized fuel undergoes catalytic exothermic oxidation. At least some heat, generated in the catalytic reactor, is transferred to the evaporator and used for the evaporation of additional fuel. When the evaporator reaches or exceeds its operating threshold, the electric heater can be turned off and all heat is supplied to the evaporator from the catalytic reactor.

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 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 combustor, including: a catalyst bed portion supporting a catalyst capable of promoting a combustion reaction of fuel; a vaporizer which is arranged on the downstream side of the catalyst bed portion with respect to a flow of the fuel going through the catalyst bed portion and is configured to be able to use a combustion gas generated from the combustion reaction as a hot fluid; a manifold portion which is outside the catalyst bed portion and guides air in a direction opposite to the flow of the fuel going through the catalyst bed portion and has a wall portion on which a sidewall of the vaporizer is projected; and a fuel introducing portion configured to penetrate the wall portion of the manifold portion so that the fuel evaporated by the vaporizer can be introduced into the manifold portion.

A vaporizer for a combustion tool comprising an inlet, an outlet, a first pressure regulator fluidly connected to the inlet, a second pressure regulator fluidly connected to the outlet, and an evaporator fluidly connected between the first pressure regulator and the second pressure regulator. The vaporizer is configured to receive, when in use, liquid and/or gaseous fuel from a fuel cartridge on the combustion tool through the inlet so that it goes through the first pressure regulator, then through the evaporator, and then through the second pressure regulator so that the gaseous fuel is delivered through the outlet at a substantially constant pressure.