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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224 SEA WATER DISTILLATION.
weight of cinders again withdrawn from the furnace;
and the weight of ashes collected during the continuance
of the trial deducted. If the ash weighs about 4 per
cent, of the coal used, it shows the quality of the coal is
good ; but if, say, 10 per cent, of ash exists, it shows the
quality of the coal is not very good. See Chapter v. on
fuels on this point, also with regard to the various
descriptions of coal that may be used.
(6) The apparatus should work with steady regularity
during the trial, and yield a fairly steady output of
water with a steady consumption of fuel every hour,
and the boiler pressure should be steady (not decreasing).
If the output is irregular, it is a sign that the apparatus
or the trial is not satisfactory, and is not likely to give
satisfaction in after use.