ENGINEERING TOPIC
Heat duty, LMTD, heat exchanger area, and heat loss calculations.
Heat Transfer
The LMTD of a countercurrent heat exchanger is the logarithmic average of the temperature differences at its two ends. For hot fluid cooling…
Heat Transfer
Sensible heat duty is calculated as Q̇ = ṁ·cp·ΔT: mass flow rate multiplied by specific heat capacity multiplied by temperature change, giving a…
Heat Transfer
The log mean temperature difference (LMTD) is the mean driving force used in the heat exchanger sizing equation Q = UAΔTm, computed from…
Heat Transfer
Heat-exchanger area is estimated from the sizing equation A = Q / (U · ΔTlm): divide the heat duty by the overall heat-transfer…