Apparatus and methods for reducing wood burning apparatus emissions
OwnerPaul E. Tiegsinventor
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Abstract
An embodiment is an emissions reduction system for exhaust gases. The emissions reduction system includes a reaction chamber with one or more parallel flow tubes. Each parallel flow tube includes a heating element to heat exhaust gases to oxidize PICs and other pollutants contained in and/or carried by the exhaust gases. The reaction chamber may also include an adjustable bypass for the exhaust gases to variably bypass the parallel flow tubes. The reaction chamber may further include an oxidizing agent injector to improve the oxidation of the PICs and other pollutants in the reaction chamber. The emissions reduction system of an embodiment may further include a catalyst bed in fluid communication with the reaction chamber to further reduce emissions.
Claims37
An emissions reduction system for a wood burning appliance having an exhaust flue, comprising:
- an inlet plenum connectable to said exhaust flue;
- an outlet plenum;
- and,
- a reaction chamber in fluid communication with said inlet plenum and said outlet plenum, said reaction chamber including a heating element.
A method for reducing products of incomplete combustion in a wood burning apparatus exhaust stream, comprising:
- providing an emissions reduction unit for treatment, said emissions reduction unit including an inlet plenum, an outlet plenum, and a reaction chamber in fluid communication with said inlet plenum and said outlet plenum, said reaction chamber including a heating element;
- directing at least a portion of said exhaust stream into said emissions reduction unit reaction chamber and heating said portion of said exhaust stream therein;
- monitoring the temperature of said portion of said exhaust stream at a point downstream of said reaction chamber;
- adjusting the power output of said one or more heating elements to maintain said portion of said exhaust stream within a selected temperature range immediately downstream of said reaction chamber;
- and,
- discharging the byproducts of said portion of said exhaust stream from said emissions reduction unit.
Dependencies are inferred from the claim text.