Heat Exchanger Area Calculator

Required area from duty, U, and LMTD

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Heat Exchanger Area

Required area from duty, U, and LMTD

$$A = \dfrac{Q}{U \Delta T_{lm}}$$

Liquid–liquid S&T: $U \approx 300{-}1000\ \text{W/m}^2\text{K}$. Gas–gas: $U \approx 10{-}50\ \text{W/m}^2\text{K}$.

Q (W)

U (W/m²·K)

ΔT_lm (K)

All fields required; U and ΔTlm nonzero.

Required Area A

—m²

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