MIL-HDBK-1003/7
a)
Steam flow to condenser.
b)
Condenser absolute pressure.
c)
Cooling water inlet temperature.
d)
Cooling water velocity through tubes.
e)
Tube size (O.D. and gauge).
f)
Tube material.
g)
Effective tube length (active length between tube sheets).
h)
Number of water passes.
i)
Tube cleanliness factor.
Condenser Heat Load. For approximation, use turbine exhaust steam flow in
7.2.1
pound per hour times 950 Btu per pound for non-reheat turbines or 980 Btu per pound for
reheat turbines.
Condenser Vacuum. Condenser vacuum is closely related to the temperature of
7.2.2
cooling water to be used in the condenser. For ocean, lake, or river water, the maximum
expected temperature is used for design purposes. For cooling towers, design is usually
based on water temperature from the tower and an ambient wet bulb that is exceeded not
more than 5 percent of the time. The condenser performance is then calculated to
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