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
Søgning i bogen
Den bedste måde at søge i bogen er ved at downloade PDF'en og søge i den.
Derved får du fremhævet ordene visuelt direkte på billedet af siden.
Digitaliseret bog
Bogens tekst er maskinlæst, så der kan være en del fejl og mangler.
40
SEA WATER DISTILLATION.
was never transferred to the water at all, but went out-
side the vessel into space. However, the waste of heat,
whatever it was, may be taken to be at about the same rate
during the whole time the gas flame was in use, so that
if it took 3 minutes to warm up the 1 lb. of water from
60° to 212°, it would take about 19 minutes to transform
the whole of the 1 lb. of water into steam, so as to leave
the vessel empty. Thus, as 152 : 966 :: 3 : 19 minutes.
For the same reason, if it took, say, x cubic feet of gas
to impart the necessary heat of 152°, it would require
the consumption of about 6’ 3 x cubic feet of gas to com-
plete the operation of transforming the entire 1 lb. of
water into steam. Thus, as 152 : 966 :: x cubic feet: 6'3 x
cubic feet.
12. Let us carry this matter a little further. Suppose
that the vessel, Fig. 3, open at the top, has 1 lb. of
water (W) in the upper compartment, and is heated,
not by a gas burner, but by pressure steam in the lower