A Appear At The Distinct Kinds Of Heat Exchangers
The Heat Exchanger is a device built for effective transferring of heat energy from 1 fluid to yet another across a solid surface. In a heat exchanger style both the convection and conduction principle of heat transfer is employed. There is no radiative transfer of heat energy between the exchanger and the environment unless the exchanger is uninsulated or its external surfaces are extremely hot. The heat exchanger has wide use in engineering processes. The most typical example of a heat exchanger is the radiator in an automobile. Here the hot fluid in the radiator is cooled by the air flow over the radiator surface.
Some other examples of heat exchanger are preheaters, intercoolers, boilers, condensers, etc. that are utilized in the power plants. They are also utilized in refrigeration, air conditioning, chemical processing and power production.
Diverse types of Heat Exchangers:
There are distinct varieties of heat exchangers. They can be classified according to its construction into the following kinds i.e. shell and tube heat exchanger and plate and frame heat exchanger.
- Shell and tube heat exchanger: This is a typical heat exchanger. The shell and tube heat exchanger is consisting of a series of finned tubes through which one particular of the fluids runs and the other fluid which is to be heated or cooled runs more than the finned tubes.
- Plate and frame heat exchanger: In a plate and frame heat exchanger, the fluids are separated by plates with a significant surface location. Right here the flow is directed by way of the baffles.
The heat exchangers classified according to its utilizes are recuperative kind, regenerative sort and evaporative type.
- Recuperative kind: In recuperative kind heat exchanger the heat from the fluids on either side of a dividing wall is exchanged.
- Regenerative sort: In regenerative variety heat exchanger the hot and cold fluids are allowed to occupy the identical space containing a matrix of material that functions alternatively as a sink or source for heat flow.
- Evaporative kind: In evaporative kind heat exchanger the fluid is evaporatively cooled in the identical space as coolant such as a cooling tower.
- The recuperative sort of heat exchanger once again can be designed according to a single of the following sorts i.e. Parallel-flow, Counter-flow and Cross-flow.
- Parallel-flow heat exchanger: In this variety of heat exchanger both the fluids exchanges heat by flowing in the very same direction by way of person pipes.
- Counter-flow heat exchanger: In this kind of heat exchanger the fluids exchanges heat by flowing in the opposite direction by way of individual pipes.
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