calorific value/calorific value of coal

CALORIFIC VALUE/ calorific value of coal calorific value GCV NCV It is defined as the total amount of heat librated when a unit ...

casting

casting:- casting is the one of the oldest manufacturing processes,and is one of the first step in manufacturing most products. in thi...

what is fuel ?

https://www.facebook.com/All-Rounder-2004588796475494/ INTRODUCTION   OF FUEL :- Any combustible substance which on burning in presence...