8 - Heat Transfer and Heat Exchangers

Abstract

Energy in the form of heat is transferred by conduction, convection or radiation. In any given item of equipment, more than one of these transfer mechanisms is present. For example, in shell-and-tube heat exchangers, convection and conduction are the primary mechanisms, whereas in fired-tube heaters, radiation is the primary mechanism for transfer of energy. In Chapter 8 the basic concepts of heat transfer are discussed leading to the design and selection of heat transfer equipment.