= 669 deg. "
Heating surface 220 square feet.
Grate surface 3.29 feet.
Coal burnt per hour 41 lb.
The fuel used was a smokeless Welsh coal, from the Llangennech
colleries. It was analyzed by Mr. Snelus, of the Dowlais Ironworks,
and in Table II. are exhibited the details of its composition, and the
weight and volume of air required for its combustion. The total heat
of combustion in 1 lb of water evaporated:
= 15.06 x (0.8497 + 4.265 x (0.426 - 0.035/8))
= 15.24 lb. of water from and at 212 deg.
= 14,727 units of heat.
TABLE II.--PROPERTIES OF LLANGENNECH COAL.
---------------------+----------+------------+---------------------+
| | | |
| | | Products of |
| | Oxygen | Combustion at 32 deg. F.|
| Analyses | required +--------+------------+
| of 1 lb. | for | | |
| of Coal. | Combustion.| Cubic | Volume |
| | Pounds. | feet. | per cent. |
---------------------+----------+------------+--------+------------+
Carbon........... | 0.
Pages:
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40