Heat exchanger

A heat exchanger is a device used to transfer heat between a solid object and a

fluid, or between two or more fluids. The fluids may be separated by a solid

wall to prevent mixing or they may be in direct contact. They are widely used in

space heating, refrigeration, air conditioning, power stations, chemical plants,

petrochemical plants, petroleum refineries, natural-gas processing, and sewage

treatment. The classic example of a heat exchanger is found in an internal combustion

engine in which a circulating fluid known as engine coolant flows through radiator coils

and air flows past the coils, which cools the coolant and heats the incoming air.

Compare the three technologies

Single-tube glass/stainless steel heat exchanger

Shell-and-tube heat exchanger with glass shell and stainless steel tubes

SS plate-type heat exchanger

Determine the influence of flow regimes on heat transfer

Turbulent and laminar regimes

Co-current and counter-current circulation

Study of temperature gradient (optional).

Characterization of heat transfers

Thermal balance

Yield

Overall experimental and theoretical heat exchange coefficient K

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