摘要:
A method and apparatus for producing radiant heat in which a mixture of fuel and primary combustion oxidant is introduced into a combustion chamber having a heat radiating wall, which mixture has less than a stoichiometric requirement for complete combustion of the fuel, and igniting the mixture, forming heated partial combustion products. At least a portion of the heat in the heated partial combustion products is transferred to the heat radiating wall. The heated partial combustion products are passed from the combustion chamber into an exhaust gas plenum disposed adjacent to the combustion chamber. A secondary combustion oxidant is introduced into the exhaust gas plenum in an amount sufficient to complete combustion of the partial combustion products, forming exhaust gases. Heat in the exhaust gases is transferred to the primary combustion oxidant disposed in a combustion oxidant plenum disposed adjacent to said exhaust gas plenum.
摘要:
A method and apparatus for producing radiant heat in which a mixture of fuel and primary combustion oxidant is introduced into a combustion chamber having a heat radiating wall, which mixture has less than a stoichiometric requirement for complete combustion of the fuel, and igniting the mixture, forming heated partial combustion products. At least a portion of the heat in the heated partial combustion products is transferred to the heat radiating wall. The heated partial combustion products are passed from the combustion chamber into an exhaust gas plenum disposed adjacent to the combustion chamber. A secondary combustion oxidant is introduced into the exhaust gas plenum in an amount sufficient to complete combustion of the partial combustion products, forming exhaust gases. Heat in the exhaust gases is transferred to the primary combustion oxidant disposed in a combustion oxidant plenum disposed adjacent to said exhaust gas plenum.
摘要:
A system and method for fuel reforming in which at least a portion of the exhaust gases from a combustion process, such as an industrial furnace, is mixed with a fuel, such as natural gas, and the mixture is introduced into a first stage heat exchange vessel in which the fuel is reformed. The reformed fuel is then returned to the combustion process for burning. In accordance with one embodiment, primary combustion oxidant is introduced into a second stage heat exchange vessel in which it is heated by a portion of the exhaust gas exiting the first stage heat exchange vessel. The heated oxidant is then introduced into the combustion process for burning of the fuel(s) therein.
摘要:
A direct flame impingement method and apparatus employing at least one multi-ported, internally recuperated burner. The burner includes an innermost coaxial conduit having a first fluid inlet end and a first fluid outlet end, an outermost coaxial conduit disposed around the innermost coaxial conduit and having a combustion products outlet end proximate the first fluid inlet end of the innermost coaxial conduit and a combustion products inlet end proximate the first fluid outlet end of the innermost coaxial conduit, and a coaxial intermediate conduit disposed between the innermost coaxial conduit and the outermost coaxial conduit, whereby a second fluid annular region is formed between the innermost coaxial conduit and the intermediate coaxial conduit and a combustion products annular region is formed between the intermediate coaxial conduit and the outermost coaxial conduit. The intermediate coaxial conduit has a second fluid inlet end proximate the first fluid inlet end of the innermost coaxial conduit and a second fluid outlet end proximate the combustion products inlet end of the outermost coaxial conduit.
摘要:
Methods and systems for improving burner, particularly ribbon burner performance, involving admixing a portion of the combustion products from the flue gas resulting from the burner to at least one of a primary and a secondary oxidizer supply to the burner. Admixing a portion of a carbon dioxide-containing flue gas combustion product formed upon combustion of a fuel gas by a ribbon burner significantly reduces NOx emissions resulting from operation of the burner.
摘要:
A direct flame impingement method and apparatus employing at least one multi-ported, internally recuperated burner. The burner includes an innermost coaxial conduit having a first fluid inlet end and a first fluid outlet end, an outermost coaxial conduit disposed around the innermost coaxial conduit and having a combustion products outlet end proximate the first fluid inlet end of the innermost coaxial conduit and a combustion products inlet end proximate the first fluid outlet end of the innermost coaxial conduit, and a coaxial intermediate conduit disposed between the innermost coaxial conduit and the outermost coaxial conduit, whereby a second fluid annular region is formed between the innermost coaxial conduit and the intermediate coaxial conduit and a combustion products annular region is formed between the intermediate coaxial conduit and the outermost coaxial conduit. The intermediate coaxial conduit has a second fluid inlet end proximate the first fluid inlet end of the innermost coaxial conduit and a second fluid outlet end proximate the combustion products inlet end of the outermost coaxial conduit.
摘要:
An apparatus for dehumidifying gas is provided which converts humid gas into dehumidified gas using a hydrophilic membrane that includes a superabsorbent polymer. A sub-dew point cooling tower, sub-dew point evaporative cooler and sub-dew point water harvesting system which utilize the apparatus for dehumidifying gas are also provided.
摘要:
An apparatus for dehumidifying gas is provided which converts humid gas into dehumidified gas using a hydrophilic membrane that includes a superabsorbent polymer. A sub-dew point cooling tower, sub-dew point evaporative cooler and sub-dew point water harvesting system which utilize the apparatus for dehumidifying gas are also provided.
摘要:
A method for heating flat or curved surfaces comprising injecting fuel and oxidant along the length, width or longitudinal side of a combustion space formed between two flat or curved plates, transferring heat from the combustion products via convection and radiation to the surface being heated on to the material being dried/heated, and recirculating at least 20% of the combustion products to the root of the flame.