A heat exchanger chiller system utilizes a device that
transfers heat through various fluids. Thermal exchange chillers may use
coolants composed of air, or a mixture of liquids to remove heat generated by
an associated heated process. The system used to transfer heat between two or more
fluids. Heat exchangers are used in both cooling and heating processes. 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.
Another example is the heat sink, which is a passive heat exchanger that
transfers the heat generated by an electronic or a mechanical device to a fluid
medium, often air or a liquid coolant.
The major difference between a heat exchanger and a chiller
is in the design. While chiller systems possess refrigeration units that cool
their circulating chiller fluid, a heat exchanger lacks a refrigeration unit
and achieves temperature regulation by direct fluid heat transfer.
The major difference between a heat exchanger and a chiller
is in the design. While chiller systems possess refrigeration units that cool
their circulating chiller fluid, a heat exchanger lacks a refrigeration unit
and achieves temperature regulation by direct fluid heat transfer.