Calculate heat exchanger duty, mass flow rate, specific heat, or temperature change from any three values using Q = mCpΔT in kW, BTU/hr, or hp.
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Heat Exchanger Duty Formula
The following two example problems outline the steps and information needed to calculate the Heat Exchanger Duty.
HED = M * LH
Variables:
- HED is the Heat Exchanger Duty (kW)
- M is the fluid mass flow rate through the exchanger (kg/s)
- LH is the latent heat (kJ/kg)
To calculate heat exchanger duty, multiply the fluidmass flow rate by the latent heat.
How to Calculate Heat Exchanger Duty?
The following steps outline how to calculate the Heat Exchanger Duty.
- First, determine the fluid mass flow rate through the exchanger (kg/s).
- Next, determine the latent heat (kJ/kg).
- Next, gather the formula from above = HED = M * LH.
- Finally, calculate the Heat Exchanger Duty.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
fluid mass flow rate through the exchanger (kg/s) = 75
latent heat (kJ/kg) = 100
HED = M * LH = ?
