Condensate sensible heat return calculator

Estimates returned-water sensible heat on a common reference basis.

Units

q_{\text{cond}} = m_{\text{cond}} \times \mathrm{Cp}_{\text{water}} \times \left(T_{\text{cond}} - T_{\text{ref}}\right)

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Given

q_{\text{cond}} = 2000 \times 1 \times \left(180 - 60\right) = 240{,}000

Symbol	Meaning	Unit
$q_{\text{cond}}$	condensate heat above reference	Btu/h
$\mathrm{Cp}_{\text{water}}$	water specific heat near 1	Btu/(lb·°F)
$m_{\text{cond}}$	returned condensate flow	lb/h
$T_{\text{cond}}$	condensate temperature	°F
$T_{\text{ref}}$	reference temperature	°F

Symbol	Meaning	Unit
$q_{\text{cond}}$	condensate heat above reference	kW
$\mathrm{Cp}_{\text{water}}$	water specific heat near 1	kJ/(kg·K)
$m_{\text{cond}}$	returned condensate flow	kg/s
$T_{\text{cond}}$	condensate temperature	°C
$T_{\text{ref}}$	reference temperature	°C

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.