| S.No |
Factors |
Briquettes |
Wood/Loose Biomass/Rice Husk |
Coal |
| 1. |
Calorific Value |
3800-4500 |
2500 to 3000 |
5000-5500 |
| 2. |
Ash Contents |
2 to 10 |
20 to 25% |
20 to 40% |
| 3. |
Pollution/Poisonous effluent Smoke |
No Smoke No Sulfur |
Smoke |
Sulphur,Co2,
phosphorous fumes |
| 4. |
Moisture |
8 %( max) |
25 to 35% |
10 to 20% |
| 5. |
Cost |
Rs.4.5 /Kg |
Rs. 3.5 /kg |
Rs. 8.0 /kg |
| 6. |
Cost Rs./Kcal |
1.18 |
1.4 |
1.6 |
| 7. |
Efficiency of boiler |
75% |
70% |
75% |
| 8. |
Wastages/Loss |
8-10% |
20-25% |
15-20% |
| 8 a. |
Actual usable value Rs./Kcal after losses |
1.29 |
1.75 |
1.92 |
| 8 b. |
Remarks |
Best value achieved per Rupee spent |
Medium value achieved per rupee spent |
Least value achieved per rupee spent |
| 9. |
Labour usage |
Single person is enough |
Require maximum persons in handling and cutting |
Require two persons |
| 10. |
Boiler efficiency |
Normal Fly ash deposit on tubes |
Require regular maintenance |
High wear & tear |
| 11. |
Handling |
Easy because of packed material |
Tough require more areas |
Tough material |
