|
The value of slurry produced can even be of greater benefit
than that of gas. Like all compost materials, biogas plant slurry adds humus, supports the micro-biological activities in the ground, increases soil fertility, porosity and water- holding
properties and also enhances crop production.
Comparison of various fuels
S.
No |
Name of fuel |
Calorific value Kilo-calories |
Mode of burning |
Thermal efficiency % |
Effective heat Kilo-calories |
Replacement value equivalent with 1 cum.biogas |
| 1. |
Biogas (M3) |
4713 |
In Standard burner |
60 |
2828 |
1.0 |
|
2. |
Kerosene (litre) |
9122 |
Pressure Stove
|
50 |
4561 |
0.620 |
|
3. |
Fire
wood (kg) |
4708 |
In
open chulha
|
17.3 |
814 |
3.474. |
|
4.
|
Cow-dung cakes (kg) |
2092 |
In
open chulha
|
11 |
230 |
12.296. |
|
5.
|
Charcoal kg |
6930 |
In
open chulha
|
28 |
1940 |
1.458 |
|
6.
|
Soft
Coke (kg) |
6292 |
In
open chulha
|
28 |
1762 |
1.605 |
|
7.
|
Butane
* (kg) |
10882 |
In
standard burners |
60 |
6529 |
0.433 |
|
8.
|
Furnace Oil (Litre)
|
9041 |
In
water tube boiler |
75 |
6781 |
0.417 |
|
9.
|
Coal
gas (M3) |
4004 |
In
standard burners |
60 |
2402 |
1.177 |
|
10.
|
Electricity (kwh)
|
860 |
Hot
plate
|
70 |
602 |
4.698 |
* Butane : Bottled domestic cooking gas sold as Indane, Bharat (Burshane),
H.P.(Esso) etc
|