Heat balance:
heat input = Heat output
Basis of calculation: 298K.
Heat input is due to oxidation reaction like  .
Heat input =1164446 kcal
Decomposition of  absorbs 71675 kcal heat.
Heat output by flue gases =706623 kcal.
Sensible heat in roast product =92243 kcal
.
| Heat input |
kcal |
Heat output |
kcal |
Heat due to oxidation |
1164446 |
Roasted product |
706623 |
CuFeS2 decomposition
__________________ |
-71675
________ |
Fluegases. |
92243 |
Heat input |
1092771 |
Heat losses
_________
Total |
908143. |
|
Surplus heat =184628 kcal
Heat balance is an important exercise.
|
