Varuvel, E.G.Sonthalia, A.Aloui, F.Saravanan, C.G.2024-05-192024-05-19202397804431901799780443190186https://doi.org/10.1016/B978-0-443-19017-9.00016-7https://hdl.handle.net/20.500.12713/4311Heat exchangers facilitate the exchange of heat between two fluids having different temperatures. The heat exchange involves conduction between the walls separating the fluids and convection in each fluid. The chapter starts with the discussion on classification of heat exchangers. Then the overall heat transfer coefficient and log mean temperature difference (LMTD) for different configurations of heat exchanger is discussed. As the heat exchanger gets fouled over a period of time a fouling factor is introduced that considers the variation in LMTD. Similarly, a correction factor is introduced for multi-pass arrangements. The effectiveness—number of transfer units (NTU) method is also discussed for analyzing the heat exchanger when the outlet temperature of the fluids is unknown. Lastly, selecting the heat exchanger for a particular application is also briefly discussed. © 2023 Elsevier Inc. All rights reserved.eninfo:eu-repo/semantics/closedAccessConductionConvectionHeat ExchangerHeat TransferSteady StateBook Chapter79932-s2.0-8517686542110.1016/B978-0-443-19017-9.00016-7N/A