People often have many questions about what exactly a heat exchanger is. The answer to that question is actually very simple. All kinds of heat exchangers have one purpose, they exist to transmit heat from one substance to a different one. A radiator in a motor vehicle is one example of a heat exchanger. Water (or some other liquid) is pumped through the engine to remove heat. The water flows to the radiator, where it is cooled by air that has been pumped in. The radiator is exchanging the heat from the engine. In another example. In another example, is the refrigerator. The heat exchanger in these appliances are able to move heat from inside the refrigerator to the air that is outside of the appliance. This is achieved by using a coolant, such as Tetrafluoroethane, is moved through the workings of the appliance through tubes and as it makes this journey, it takes with it, the heat that is inside the appliance. It releases the heat when it has passed through, explain experts at Clyde Bergemann Power Group.
The process by which the heat is exchanged is conduction that is passed through the substances in the heat exchanger, which separates the two mediums. One heat exchanger design is the shell and tube exchanger. It takes fluid and pushes it over tubes. In air cooled heat exchangers do something different. They take cold air and move it through to remove heat from a fluid.
There are a few kinds of heat exchangers that are available today. There are certain advantages and disadvantages to each. Clyde Bergemann Power Group experts say that the kind of heat exchanger that is used is determined by the reasons for using it.
The first are the shell and tube heat exchangers. This is one of the most widely used of the heat exchangers that is available, according to Clyde Bergemann Power Group experts. These use a cylindrical shell to house a number of small tubes. There is tube stack inside the shell that contains the tubes. The tube stack or bundle can either float or be fixed in place.
The next are the plate and frame heat exchangers. One industry that finds these most useful is the food and beverage industry. These are very similar to the shell and tube heat exchangers but there are some differences. There are no tubes in plate and frame heat exchangers, rather there are a sequence of plates that are stacked. These can be gasketed or brazed. These are very compact.
The last kins is the air cooled heat exchanger. This is the kind that is used in motor vehicles. If there is no access to a source of cool water. The air that is used is supplied by either a fan or, in the case of motor vehicles, the movement of the vehicle forces air through the system.
Heat exchangers are used in every industry and in multiple places around the home.