The present invention relates to a hybrid combustion system (1) wherein rich homogeneous combustion and lean catalytic combustion are carried out consecutively, which results in zero NO.sub.x emission and is used for obtaining domestic hot water. The present invention relates to a combustion system wherein two serially connected heat exchangers units, which are located in the outlets of the rich homogeneous combustion unit and the lean catalytic combustion unit, transfers the heat generated during combustion reactions into domestic radiator heating water and/or tap water for hot water generation.

A turbine engine combustion chamber module including at least one constant-volume combustion chamber. The module includes, upstream of the at least one constant-volume combustion chamber, a precombustion chamber capable of producing hot combustion gases that supply the at least one constant-volume combustion chamber so as to allow the ignition thereof.

The present invention relates to a system for utilizing liquid fuels, such as diesel and gasoline, in a catalytic reactor for producing clean heat from the fuel. In particular it relates to a fuel injection system for a catalytic burner (310, 313). It includes preheating elements (308, 309, 315; FT) for preheating the catalytic burner (310, 313) and primary fuel supply elements (307) for supplying fuel to the catalytic burner (310, 313). The preheating elements (308, 309, 315; FT) and the primary fuel supply elements (307) are provided in separate compartments (310, 312), the compartments being connected with each other via a channel (CH).

The present invention relates to a system for utilizing liquid fuels, such as diesel and gasoline, in a catalytic reactor for producing clean heat from the fuel. In particular it relates to a fuel injection system for a catalytic burner (310, 313). It includes preheating elements (308, 309, 315; FT) for preheating the catalytic burner (310, 313) and primary fuel supply elements (307) for supplying fuel to the catalytic burner (310, 313). The preheating elements (308, 309, 315; FT) and the primary fuel supply elements (307) are provided in separate compartments (310, 312), the compartments being connected with each other via a channel (CH).

A chemical looping combustion (CLC) process for sour gas combustion is integrated with a gas turbine combined cycle and a steam generation unit, and is configured to provide in-situ removal of H.sub.2S from the sour gas fuel by reacting the H.sub.2S with a oxygen carrier at a location within the fuel reactor of the CLC unit. The process is also configured such that oxygen-rich exhaust gases from the gas turbine combined cycle is used to feed the air reactor of the CLC unit and re-oxidize oxygen carriers for recirculation in the CLC unit.

A chemical looping combustion (CLC) process for sour gas combustion is integrated with a gas turbine combined cycle and a steam generation unit, and is configured to provide in-situ removal of H.sub.2S from the sour gas fuel by reacting the H.sub.2S with a oxygen carrier at a location within the fuel reactor of the CLC unit. The process is also configured such that oxygen-rich exhaust gases from the gas turbine combined cycle is used to feed the air reactor of the CLC unit and re-oxidize oxygen carriers for recirculation in the CLC unit.

In a clean boiler with steam conversion and hydrogen/oxygen pre-blending, the clean boiler comprises two identical boiler bodies integrated to form a single entity. The clean boiler comprises two slim cavities, four water-containing chambers and four combustors, which is heated at wide faces and generates steams rapidly. The boiler comprises an integrate body containing two independent boiler bodies (1), and each of the independent boiler bodies (1) contains an independent boiler chamber (19). A steam conversion and transformation system is simultaneously provided for introducing a part of steam into the independent boiler chamber (19). High temperature of the boiler chamber (19) is utilized to promote a decomposition of the steam into H.sub.2 and O.sub.2. Water formed by H.sub.2 and O.sub.2 is utilized as a fuel to provide a self-sustaining combustion and heating, thus reducing a dependence on a primary energy source, reducing carbon emissions and protecting the environment.

The present invention relates to a hybrid combustion system (1) wherein rich homogeneous combustion and lean catalytic combustion are carried out consecutively, which results in zero NO.sub.x emission and is used for obtaining domestic hot water. The present invention relates to a combustion system wherein two serially connected heat exchangers units, which are located in the outlets of the rich homogeneous combustion unit and the lean catalytic combustion unit, transfers the heat generated during combustion reactions into domestic radiator heating water and/or tap water for hot water generation.

The present invention relates to a hybrid combustion system (1) wherein rich homogeneous combustion and lean catalytic combustion are carried out consecutively, which results in zero NO.sub.x emission and is used for obtaining domestic hot water. The present invention relates to a combustion system wherein two serially connected heat exchangers units, which are located in the outlets of the rich homogeneous combustion unit and the lean catalytic combustion unit, transfers the heat generated during combustion reactions into domestic radiator heating water and/or tap water for hot water generation.

A burner includes a generally cylindrical reactor chamber (1) including a housing (1) having a proximal end (1p) and a distal end (1d). In the distal end of the reactor chamber (1) there is provided a catalyst (4). A fuel inlet (7) is provided in the proximal end of the reactor chamber. There are also a plurality of air inlets (22, 23; 24) arranged in the reactor wall at the proximal end. The inlets are configured to provide a rotating flow of the air injected into the reactor chamber. There is also provided a flow homogenizer (8; 30) extending over the cross-section of the reactor chamber at a position between the fuel inlet (7) and the catalyst (4).