System to Lower Emissions and Improve Energy Efficiency on Fossil Fuels and Bio-Fuels Combustion Systems

Abstract

The present invention relates to a water heater system comprising: a hot water boiler having top, bottom and side walls; a flue connected to the top wall; a burner secured to a side wall of the first housing; a combustible feeder connected to the burner; an evaporator having a housing, the housing comprising an outlet, heat exchange elements located in the housing and a water discharge device spaced above the heat exchange elements, wherein the evaporator provides a source of humid air to the burner for increasing the combustion product dew point and to reduce NOx emission when burned; and a heat recovery system connected to the flue wherein the heat is used for heating water used by the water discharge device.

1 . A water heater system comprising:
 a hot water boiler having
 top, bottom and side walls; 
 a flue connected to said top wall; 
 a burner secured to one side wall; 
 a combustible feeder connected to said burner; 
   an evaporator having a housing, said housing comprising an outlet, heat exchange elements located in said housing and a water discharge device spaced above said heat exchange elements, wherein said evaporator provides a source of humid air to said burner for increasing the combustion product dew point and to reduce NOx emission when burned; and   a heat recovery system connected to said flue wherein said heat is used for heating water used by said water discharge device.   
     
     
         2 . The system of  claim 1 , further comprising
 a flue gas analyzer connected to said flue and to the outlet of said evaporator for measuring the level of at least one of CO 2 , thermal and fuel NOx and H 2 O and for measuring the temperature and water content at said outlet of said evaporator; and   a controller for analyzing said level of at least one of CO 2 , thermal and fuel NOx and H 2 O and said temperature and water content at said outlet of said evaporator, wherein if at least one of these values, alone or in combination, indicate a sub-optimal combustion condition, said controller adjusts the operation parameters of said water heater system to reach optimal combustion condition.