A Heat Exchanger Facilitates Efficient Heat Across a Solid Surface

A heat Exchanger is in fact a device that facilitates efficient heat transfer from one fluid to another across a solid surface. The convection and conduction principle of heat transfer is mainly employed in the design and manufacturing of a heat Exchanger. One of the most common examples of a heat exchanger is the radiator in a car where the hot fluid in the radiator gets cooled by the flow of air over the radiator surface. A few other examples of heat exchangers are pre-heaters, intercoolers, boilers, condensers, etc. that are used in power plants. There are various types of heat exchangers. Heat exchanges could be classified based on their design and construction into the following types i. e. shell and tube heat exchanger and plate and frame heat exchanger. Type of heat Exchanger: Air Cooled Heat Exchanger, Shell Tube Heat Exchanger, Finned Tube Heat Exchanger, Plate Type Heat Exchanger, Air Cooled Condenser, Air Fin Cooler, Tube Bundle Heat Exchanger, Brazed Plate Heat Exchanger, Aluminium Heat Exchanger, Stainless Steel, Copper Heat Exchanger, Air Heat Exchanger, Compact Heat Exchanger, Double Pipe Heat Exchanger, Marine Heat Exchanger, Tubular Heat Exchanger, Water Heat Exchanger, Plate Heat Exchanger, Air Cooled Heat Exchanger Heat Exchange Flow Heat exchangers can be classified into two types, mainly according to their flow arrangements. These are the parallel-flow and the counter-flow heat exchangers. The parallel-flow exchange involves the two mediums going in the exchanger through the same side of the device. For example, two fluids will enter the exchanger at the same side and travel parallel each other for the whole process. The counter-flow exchange, on the other hand, is the opposite of the first process. Here, fluids will enter the device from different ends and meet each other for the process of heat exchange. Many heat exchangers use this flow since it has been proven to be the more effective of the two processes because it can transfer more heat from the heating medium to the other. In this set-up, the mediums travel to one another and are then processed by the heat exchanger. Heat Exchanger Made up off Heat exchangers often need to withstand extreme temperatures. For this reason, there are many materials developed specifically for the purpose of heat exchange. Common materials to make heat exchange tubing include PTFE (Poly tetra-fluoro ethylene), FEP (Fluorinated ethylene propylene), and PFA (Perfluoroalkoxy). Use of Heat Exchangers One example of this is the radiators found in cars or air conditioners It is that a heat source transfers water that will cool the engine through the exchanger. The exchanger will transfer heat from the water to air leaving the engine cooler. Heat exchangers are widely used for the purposes of space heating air conditioning and even refrigeration. Heavy industries that also use this technology include power plants, chemical and petrochemical plants, oil and petroleum refineries, natural gas processors and sewage treatment facilities. Source: hicow.com/heat-exchanger