In screened coal you will get different type of sizes like 0-6mm size, 6-15 size, 6-50mm size, 15-50mm size and in screened coal moisture will become very very less that is between 16-20% and less ash contain less than 6% and also less sulpher thats is less 1%. In screened coal heat value will increase and its depends upon the calorific value of coal .