Abstract:
A portable heat and electricity generating device (1) comprising: within the enclosure (2) there are provided an intake channel (3) for combustion air (A), a combustion chamber (4), a heat transfer element and an electricity generating element (8), a fire grate (45) for fuel (F) material to be located for combustion, the fuel feed opening (21) is located above the combustion chamber (4) so that the fuel (F) feed is gravity based, the intake channel (3) is located parallel to the combustion chamber (4) and the direction of the air (A) flow in the intake channel is configured opposite to the direction of the combustion/exhaust gas (E) flow, a heat sink (7) is provided in the intake channel (3) for pre-heating the intake air (A) before combustion, the electricity generating element (8) is a thermoelectric element (81) provided between the heat sink (7) and the heat transfer element.
Abstract:
A furnace, and a method of firing it, wherein part of the fuel supplied to the furnace is produced from waste plastics by a depolymerisation process, waste heat from the furnace being used to promote the depolymerisation process. The furnace is equipped with regenerators for waste heat recovery and is fired alternately in first and second opposed directions, with the direction of firing periodically reversing between the first direction and the second direction. The supply of fuel to the furnace is temporarily interrupted while the direction of firing is reversing, means being provided to accommodate the fuel produced during the temporary interruption. The furnace may be used for producing glass.
Abstract:
Valve with heated sealing gas suitable for use in a regenerative thermal oxidizer, and oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. In a preferred embodiment, the valve utilizes hot gas from the regenerative process to heat gas for sealing the valve, and sealing air flows through a heat exchanger that is positioned to be in contact with hot exhaust gas from the regenerative process.
Abstract:
The invention relates to a heat exchanging system for a furnace (300) with a supply pipe (120, 130) adapted to supply a medium to a burner (310a, 310b) of the furnace (300), an exhaust flue (100) adapted to exhaust combustion waste gases (101) from the furnace (300), the exhaust flue (100) comprising a refractory element (110), wherein the supply pipe (120, 130) is arranged at least partially inside or on the refractory element (110) of the exhaust flue (100).
Abstract:
A plurality of independently flow rate-controlled flows of oxidant may be preheated at a heat exchanger (or both oxidant and fuel at separate heat exchangers) by heat exchange with a hot shell-side (heat transfer) fluid. The separate flows of hot oxidant are directed to associated separate burners where they combust with flows of fuel to produce hot combustion gases. The hot combustion gases are used to preheat the hot shell-side fluid at a recuperator or regenerator.
Abstract:
A heat recuperation unit 100 operated in a plant having a drying unit (DU) is provided. The unit includes: a regenerative thermal oxidization unit (RTU)for processing a waste gas to produce a hot gas; a first hot gas pipeline (R1-H1-H2-D1) connected to the regenerative thermal oxidization unit (RTU) and the drying unit (DU), wherein the hot gas is transferred from the regenerative thermal oxidization unit (RTU) to the drying unit (DU) via the first hot gas pipeline (R1-H1-H2-D1); a heat recovery unit (HRU) disposed at the first hot gas pipeline (R1-H1-H2-D1) to absorb heat from the first hot gas pipeline (R1-H1-H2-D1); an absorption refrigeration unit (AHP) connected to a target to be cooled; and a hot liquid pipeline (R1-H1-H2-D1) connected to the heat recovery unit (HRU) and the absorption refrigeration unit (AHP), wherein the heat recovery unit (HRU) transfers the heat from the first hot gas pipeline (R1-H1-H2-D1) to the absorption refrigeration unit (AHP) via the hot liquid pipeline (H3-A1-A2-H4), so as to actuate the absorption refrigeration unit (AHP) to cool the target.
Abstract:
A combustion facility (1) using heat accumulation type burners, including: a furnace body (2): and a pair of burners (11A, 11B) provided in the furnace body and each including a heat accumulator (12A, 12B), wherein while the pair of burners are caused to alternately combust in the furnace, a combustion exhaust gas in the furnace is taken in by a burner in a state of non-combustion to accumulate heat in a heat accumulator of the burner, and a predetermined amount of combustion gas is supplied to a burner in a state of combustion (11A), so as to cool a heat accumulator (12B) of the burner and also preheats the combustion gas by heat released from the heat accumulator, the combustion facility further comprising a gas supply unit (31) that supplies a predetermined amount of combustion gas, and also a non-combustion gas which does not produce a disturbance in combustion, to the burner in the state of combustion, so as to cool the heat accumulator of the burner.
Abstract:
In order to overcome the problems that earlier methods have experienced, a method of introducing oxygen enriched air into a furnace is proposed, the method comprising: - injecting oxygen to a combustion chamber of the furnace (10); and - entraining air into the oxygen during the injecting and prior to the oxygen entering the combustion chamber. A corresponding fluid injection apparatus for a furnace comprises: - a housing having a space therein and a discharge orifice (53) in communication with the space and a combustion chamber of the furnace (10); - a lance (48) for oxygen disposed in the space and in communication with the discharge orifice (53), said lance (48) in particular being adjustably moveable within the space to control a flow of the oxygen and the air; and - an inlet duct (54) for air in communication with the space external to the lance (53).