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87results about How to "Clean burning" patented technology

Portable combustion device utilizing thermoelectrical generation

This invention provides a portable combustion device that provides a cleaner combustion, reduces the kindling period, and provides a more efficient overall combustion through the use of a fan that directs a predetermined volume of airflow over the combustible fuel—typically wood or similar cellulose-based biological solids. The combustion device has a combustion chamber into which the fuel source is placed for combustion. Mounted to the side of the combustion chamber is a housing that encloses the TEG, which generates an electrical output based on a difference in temperature on opposing sides. Mounted onto the TEG housing and protruding into the combustion chamber through a small passageway is a heat-conducting probe and heat-conducting probe base unit. The opposing side of the TEG is also in contact with a heat sink to remove heat from the TEG device through interaction with ambient air that passes over the vanes from a port located along the side of the TEG housing. A motor and fan near the heat sink to draw air away the heat sink and aid in the cooling of the heat sink, and force air onto the combusting fuel through a plurality of peripheral ports that connect with an air space located between the inner and outer walls of the combustion chamber.
Owner:BIOLITE INC

Mixed fuel coal burner for gas turbines

As shown schematically in FIG. 1, hot gases, containing molecular oxygen, from generator elements, (14) and (19), pass through a bed of coal chunks in an ODD reactor chamber (2). The molecular oxygen content of these hot gases is less than stoichiometric, relative to the coal volatile matter content, so that partial oxidation of only the volatile matter occurs within the ODD reactor chamber, (2), during devolatilization therein. Two products are thusly created, a partially oxidized, and hence cleaner burning, volatile matter fuel gas, and a solid devolatilized coke. The hot coke is transferred, by overfeed, into a coke reaction chamber, (7), where counterflowing primary air, via air meter, (12), gasifies the coke into carbon monoxide with some carbon dioxide. Finally, the carbon monoxide and the partially oxidized volatile matter, are admixed with overfire air, and burned fully to carbon dioxide in overfire burner chambers, (23), (26). The resulting hot burned gases flow into the nozzle inlet, where, after mixing with bypass air, they expand through the expander portion of a gas turbine engine. Coal ashes accumulate at the bottom, (9), of the coke reaction chamber, (7), where the overlying coke chunks prevent ash particle carryover into the turbine blades. Low cost coal can thus be cleanly used as an energy source for gas turbine engines.
Owner:FIREY JOSEPH CARL

Novel engine controlled by combustion reaction path and regulating method thereof

The present invention discloses a novel engine controlled by combustion reaction path, which cylinders comprise working cylinders and reforming cylinders. According to the operational condition of engine, the engine is used for compressing, heating and reforming the fuel injected from the reforming cylinder injector; by controlling the reaction boundary conditions between fuel and air, the reforming cylinder can exhaust partial intermediate products or oxidation products of the different oxidation stages; the products are then mixes with the inlet air in the pre-mixing chamber and then is introduced into the working cylinder. Under operating in different working conditions, the engine can discharge the mixed gas with different activities under different oxidation stages by regulating the corresponding boundary conditions of the reforming reaction of the reforming cylinder, and can achieve concentration stratification and activity stratification of the mixed gas in the working cylinder by using the fuel injected from the working cylinder injectors, and can effectively achieve high effectiveness and broaden the scope of clean combustion by changing the combustion reaction path. The present invention just adopts simple oxidation reaction post-treatment device, and then the emission of the engine can meet the requirement of EuroVI emission regulation.
Owner:TIANJIN UNIV
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