On the Characteristic Surface of a Steam Boiler : 5th Report, Effect of the Combined Combustion of Two or Several Fuels

Abstract

When two or several fuels, such as the combined firing of the chain grate stoker and the pulverized coal, or the gaseous fuels and the pulverized coal, are burning in a combustion chamber, the boiler efficiency is affected by the mixing ratio of fuels, even though the total quantity of heat of these fuels are equal. Because, each fuel has its own combustion characteristics. In this paper, we analyse the characteristic surface of the combined combustion boiler with regard to the mixing ratio of fuels.