Question

A sample of coal has the following composition:- C= 70% O=23% H=5% S=1.5% N=0.4% Ash=0.1% Calculate GCV of this fuel.

Answer 1

Given: - C= 70% O=23% H=5% S=1.5% N=0.4% Ash=0.1%
Required: - GCV=?

Formula: GCV= `1/100[8080C+34500(H-o/8)+2240S]`
Calculations:

GCV= `1/100[8080xx70+34500(5-23/8)+2240xx1.5]`

GCV= 6422.725 kcal/kg