Abstract:
A burner (1) comprises a front wall (2) with an exchanger opening (4) for the passage of a heat exchanger (14), a rear wall (5) with a fume discharge opening (7), a tubular side wall (8), a tubular diffuser wall (9) within the side wall (8), an annular distribution chamber (12) formed between the side wall (8), a combustion chamber (13) formed within the diffuser wall (9) and suitable for the insertion of the heat exchanger (14), wherein the rear wall (5) comprises a cooling interspace in flow communication with the gas supply line of the burner.
Abstract:
A combined heat and power system comprising a source (5) of solid fuel (P). A burner (8) within the combustion chamber (9) combusts the fuel. The combustion chamber has first and second outlets for the hot exhaust gas. A first heat exchanger (15) is fed with hot exhaust gas from the first outlet. A Stirling engine (1) in a second chamber (11) to which the second outlet leads, the Stirling engine being arranged to generate electricity when its head (3) is exposed to the hot exhaust gas. A second heat exchanger (16) is downstream of the second chamber, the second heat exchanger being arranged to receive hot exhaust gas once it has passed the Stirling engine head. The first and second heat exchangers are connected to a water supply (20) to provide a supply of hot water. A fan (13, 22) draws air through the combustion chamber. A damper (21) controls the flow of gas through the second chamber and second heat exchanger.
Abstract:
Burning stove (1) combined with a Stirling engine (2) for producing electricity or to be coupled to a heat pump where the heater of said Stirling engine (3) is placed inside the stove (1), that comprises two or more burners (4) arranged on the same plan and that the axis of the heater (3) of the Stirling engine (2) passes through the barycenter of said two or more burners (4). The stove can be advantageously a pellet stove with one or more heat exchangers (8).
Abstract:
The invention relates to a Stirling engine, and particularly the heater thereof for transmitting external heat into the working gas of the Stirling engine, comprising a hollow cylinder composed of a thermally conductive material and having a plurality of channels that are connected to the hot gas chamber of a Stirling engine, characterized in that the channels are distributed over the cross-section of the hollow cylinder and go through the hollow cylinder along a cylinder axis, and on the side of the hollow cylinder facing away from the hot gas chamber the channel openings are connected to each other by way of an annular connecting element.
Abstract:
To improve the efficiency of an axial piston engine, the invention proposes an axial piston engine with a combustion chamber which operates with two-stage combustion.
Abstract:
A Stirling engine assembly comprising a pair of Stirling engines (1) each having a head (3). The engines are mounted with their heads adjacent to one another and such that the vibrations of one substantially counteract the vibrations of the other. A heat source assembly (7) surrounds the heads, wherein the heat source assembly has a segmented configuration arranged to be removably assembled around the engines.
Abstract:
This invention relates to domestic heat and power systems that allow efficient methods of operating a domestic combined heat and power (dchp) unit and to energy-efficient methods of scheduling domestic appliance operation within a household having a dchp unit. Dchp units provide heating and hot water for the home and also generate electricity for use in the home. A domestic heat and power system is provided that comprises a dchp unit, a dchp unit controller, a programmer module and an energy scheduler linked to allow communication therebetween, wherein the programmer module receives data input and generates a heating and/or hot water schedule therefrom, the dchp unit controller determines operating times of the dchp unit in accordance with the schedule and provides the operating times to the energy scheduler that then operates the domestic appliance during operating times.
Abstract:
The present invention relates to an apparatus for heating fluid in a pipe system, comprising: a first burner for heating pipes of the fluid circuit; a feed for air and/or fuel for causing combustion of this mixture by the burner; a second burner for heating a head of a generator for generating electrical energy; and an outlet pipe for discharging flue gases from the second burner into the space where the first burner is situated.
Abstract:
A combustor (10) for a heat engine, such as a Stirling cycle heat engine, incorporating a number of nozzles (12) mounted between a pair of plates (14, 15). Fuel is introduced from above the plates (14, 15) into mixing chambers (60) within the nozzles (24). Combustion inlet air passing between the plates (14, 15) is introduced into the mixing chambers (60) and create a swirling motion in the fuel/air mixture. The fuel/air mixture passes through an expansion chamber (68) before being discharged to a common combustion chamber (30). The combustor (10) has been designed to allow the use of high temperature combustion inlet air and to have low NOx emission characteristics.
Abstract:
A hybrid energy conversion system comprising a sun concentrator, a radiation-to-heat exchanger arranged in a radiation chamber and configured to receive high density sun radiation from the sun concentrator through an entrance of the radiation chamber, a Stirling engine operable to convert heat from the radiation-to-heat exchanger into mechanical energy, and a burner configured to generate combustion energy for operation of the Stirling engine by combustion of a suitable fuel. The combustion chamber has an exhaust outlet for removal of combustion gases from the chamber, which exhaust outlet is arranged to create a flow of combustion gas from the entrance past a front portion of the radiation-heat-exchanger. By creating a flow of combustion gas past a front part of the radiation-to-heat-exchanger (i.e. a part facing the entrance of the radiation chamber), energy transfer by heat convection is improved.