Calorific Value
The calorific or heating value is an important indicator of the quality of pressed fuel briquettes . It measures the energy content of the briquettes. It is defined as the amount of heat evolved when a pressed fuel briquette is completely burnt and the combustion products are cooled. The Gross Caloric Value, shortened as GCV, refers to the calorific value with the condensation of water in the latent heat also known as higher heating value.
| CALORIFIC VALUE OF BRIQUETTES MADE FROM VARIOUS RAW MATERIAL | ||
| Type of Material | Ash(%) | Heat of Combustion Kcal |
| Arhar Stalk | 1.98 | 4000 |
| Babool Stalk | 0.90 | 4707 |
| Baggasse | 1.80 | 4300 |
| Briquettes of Bark | 3.4 | 4487 |
| Chips | 3.0 | 4800 |
| Bamboo Dust | 8.0 | 4160 |
| Barks Wood | 4.4 | 1270 |
| Bark and Binder | 4.8 | 4459 |
| Castor Seeds Shells | 8.0 | 3862 |
| Clean Chopped Straw | 5.3 | 4403 |
| Coffee Waste | 2.0 | 4371 |
| Coconut | 3.5 | 5200 |
| Cotton Stalk/Chips | 3.0 | 4252 |
| Coir Pith | 9.1 | 4146 |
| Cow Dung | 14.89 | 3240 |
| Forestry Waste | 7.0 | 3000 |
| Groundnut Shells | 2.80 | 4661 |
| Jute Waste | 3.0 | 4428 |
| Maize Stalk | 2.10 | 3800 |
| Mustard Shell | 3.7 | 4300 |
| Mustard Straw | 3.4 | 4200 |
| Pine Needles | 1.86 | 4000 |
| Peat | 29 | 3180 |
| Plam Husk | 4.9 | 3900 |
| Paddy Straw | 15.5 | 3469 |
| Press Mud (Maili) | 14.25 | 3600 |
| Paper | 1.5 | 4801 |
| Papyrus | 5.6 | 3965 |
| Rice Husk | 19.2 | 3200 |
| Rice Straw | 19.2 | 3500 |
| Straw + Coal Dust + Rape Seed | 3.8 | 4100 |
| Saw Dust + Cow Dung | 8.2 | 3898 |
| Saw Dust | 0.7 | 4654 |
| Soya Been Husk | 4.1 | 4170 |
| Shells from Oil Kevels | 2.0 | 4985 |
| Straw and Coal Dust | 6.1 | 4826 |
| Sunflower Stalk | 4.3 | 4300 |
| Sugercane | 10 | 3996 |
| Tea Waste | 3.8 | 4237 |
| Tabacco waste | 31.5 | 2910 |
| Wood chips | 1.2 | 4785 |
| Wheat straw | 8.0 | 4100 |