A Practical Manual On Sea Water Distillation
With A Description Of The Necessary Machinery For The Process
Forfatter: Frank Normandy
År: 1909
Forlag: Charles Griffen & Co., LTD.
Sted: London
Sider: 244
UDK: 663.6
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54 SEA WATER DISTILLATION.
regards weight. Therefore, the quantity of hydrogen
must have deducted from it | of the quantity of oxygen
present, and the surplus hydrogen only can be counted
for giving heat. (See paragraph 26, on page 66.)
(a) Coal and Coke.
2. The composition of coal, according to the analysis of
Péclet and others, is, approximately, as follows :—
Coal. Coke.
Carbon, per cent.. 80-40 85
Hydrogen, ,, 5-19 0
Oxygen, 7-87 0
Nitrogen, ,, 2-46 0
95-92 85
Refuse (ashes), say 4'08 15
Total, 100-00 100
According to the foregoing analysis, therefore, 1 lb. of
coal should be capable, when burnt, of yielding heat as
under. (Coke is simply 85 X 12,906 = 10,970 B.T.U.):—
B.T.U.
Carbon,. . . 0'804 (i.e., 80’4%) x 12,906 = 10,376
Hydrogen, 0'05190
Less, 0’00984 used with its oxygen to
form water
(0-0787-7-8 = 0-00984).
0'04206 surplus hydrogen x 62,535 = 2,732
B.T.U. obtainable from 1 lb. of coal .
13,108