Component | Heat Value (Kcal) |
Sponge iron sensible heat; assuming ∆t = 1045˚C | +124 |
Char sensible heat; assuming ∆t = 1045˚C | +13 |
Flue gas sensible heat; assuming ∆t = 1045˚C | +1555 |
Heat loss due to moisture present in the coal | +66 |
Heat loss due to vapor formed from hydrogen of coal | +49 |
Heat of iron reduction reaction (exothermic) | −758 |
Heat gain from burning of VM of coal | −1300 |
Net heat surplus in overall Kiln reaction | −251 |
Total additional heat/coal requirement to produce 1 Kg sponge iron | nil |