Formulas - Calculating Condensate for Shell and Tube Heat Exchangers
L x ∆T x C x 500 x sg
Q = ———————————
H
Where:
Q = Condensate load in Lbs/hr
L = Liquid flow in GPM
∆T = Temperature
rise in °F
C = Specific heat of liquid in BTU/lb--°F
500 = 60 min/hr
x 8.33 lbs/gal
sg = Specific Gravity of liquid
H = Latent heat of Steam in
BTU/lb
SAFETY FACTOR: 2
EXAMPLE:
10 PSIG steam system
20 GPM
Heating water from 40° to
120°
20 x 80 x 1 x 500 x 1
Q = ———————————
953
Q= 839 lbs/hr
Properties of Saturated Steam
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