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Tuesday, 28 February 2017
Phosphoric acid specifications
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MicrosoftInternetExplorer4
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Vapour velocities in evaporator bodies
AS PER HUGOT VAPOUR VELOCITIES RECOMMENDED
Triple in m/sec
Quadruple in m/sec
Quintuple in m/sec
Min
Max
Min
Max
Min
Max
Exhaust steam
to 1st effect
25
30
25
30
25
30
Vapour from
1st effect
30
35
30
35
30
35
Vapour from
2nd effect
40
45
35
40
30
35
Vapour from
3rd effect
50
60
40
45
35
40
Vapour from
4th effect
...
properties of steam
Properties of Steam
In evaporator
calculations, the properties of saturated steam are involved at every step.
We shall find in Table 41.1 (Hugot page no. 1034):
(1) The
boiling point " t " of water corresponding to each pressure
(2) The
sensible heat "q "contained in water which has attained that temperature
(3) The
latent heat or heat of vaporisation r of water, for this temperature, i.e.
the quantity of heat...