Inflection Point Engineering Calculators

Heat Exchanger Duty

Sensible-heat duty, LMTD, and required area for a shell-and-tube exchanger. Screens hot-side vs cold-side energy balance and checks available UA against required UA.

Method: Q = m Cp ΔT (sensible); Q = U A F · LMTD. LMTD computed on a counter-current basis; multipass correction F per Bowman (1940) for 1-shell/2-pass and 2-shell/4-pass TEMA E configurations. References: Perry’s Chemical Engineers’ Handbook, Section 11; TEMA Standards. Screening only — sensible-heat duty, no phase change. For rigorous rating use HTRI / Aspen EDR.