Criteria for Selection of Heat Exchangers

Composition in terms of mole fraction or percentage should be given for the gas streams (for each of the components). 

In case of liquids, the quantities of the streams should be mentioned in terms of kg/h. 

Properties of gas mixture Mean C, viscosity, molecular weight of gas mixture properties of liquid to be heated or cooled should be given. 

Fluids with suspended particles or a tendency for scale formation should be put on the tube side for ease of cleaning. 

Material of Constraction (MOC) of shell Mild steel (Indian Standard 2062) or its international equivalent is may be considered. It is most common. 

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