Development of an Energy Efficient Solid Fuel for Maximum Emission-Reduction and Regular Heating Rate in Fired Heaters

Abstract

In consideration to the numerous impacts of coal burning especially in domestic indoor fires, a coal-based composite solid fuel has been developed to immensely reduce gaseous emissions, while at the same time maintaining good heat generation rate. The fuel-type which was produced from a mixture of coal and clay solution yielded its optimum heating properties and minimum emission for a formulation of 2:1 of coal: clay solution (1:2.5 of clay: water) by mass fraction. The calorific value of the pure coal was higher than that of composite coal by a factor 1.2 for the same mass of sample used. The formulated composite solid fuel which was found to compete favourably with pure coal, was also efficient toward gaseous emission reduction when combusted at 400oC than at 800oC.