Patent ID: 6237511
Filing Date: 2001-05-29
Classification: F23G,F23K,F23N

Abstract:
A method of burning plant-based fuel, in which method the plant-based fuel is burned in a boiler designed for burning dry fuel, with the plant-based fuel being used having a moisture value which can vary in a range from dry to wet, comprising:heating air with heat energy from combustion gases of the boiler to provide a source of heated air;dimensioning heat and flow amounts of the heated air in such a way that heated air, with derived heat energy from the combustion gases, is directed to the fuel in an amount sufficient for drying the fuel in any condition presented amongst the range between dry and wet, and that flow of the heated air directed to the fuel is controlled to provide sufficient drying of the fuel before use of the fuel in the boiler and such that the heated air not needed for drying the fuel is conducted into the boiler to serve as combustion air.