Fundamentals of heat exchanger

finned coil heat exchangers is one of the main devices of today. Not only in the simplest of devices, heat exchangers also found its use in major industries and machinery in the world. They are found especially in some machines, devices for transferring heat from one can of media to another. They allow for an efficient transfer of heat from one object to another.

The use of heat

One example is the radiator in the vehicle or air conditioning. what typically happens is that water source heat transfer through the engine cool heat exchanger. This heat exchanger transfers the heat from the water to keep the engine cool air.

Heat Exchangers are widely used for heating, AIR-CONDITIONING and refrigeration equipment. Heavy industry, even this technology including power plants, chemical and petrochemical plants, oil refineries and natural gas processing and treatment facilities.

Types of flow of heat Exchange

Heat is produced in two types, especially after their organization flux is classified. This parallel flow heat exchanger, and against the flow.

Parallel thread Exchange includes two media device the same side via a heat exchanger. For example, the two fluids enter the Exchanger on one side and travel parallel to each other during the process.

Against the current Exchange, on the other hand, the opposite of the first process. Liquids enter the device with different parts and met each other in the process of heat exchange. A lot of heat exchangers using this thread, as shown in the figure, the more effective the process because two can send more heat from the heating medium to another. In this configuration, the media traveling together, and processed by kationitom.

Traditional heat exchanger is designed in such a way that the surface between two liquid flow is maximized while minimizing resistance to flow, while at the same time. Additional fins are mounted in both directions, enter fluid can also increase the heat exchanger. These streams can be added to the surface of the heat exchanger, as well as aiding in the process of managing the flow of fluid Exchange.

The temperature in the process of heat transfer

Depending on the size of the heat exchanger temperature changes during the process of Exchange. Temperature also varies depending on the location of the device. But many industry, heat exchangers are almost always use a certain temperature on their own.

This temperature is usually in average temperature difference or L.M.T.D. journal. Sometimes, though, it is still difficult to determine if the LMTD method, in this case, the method then uses the NTU.

This type of heat exchanger

There are several types of heat exchangers that are used today. Includes sheath tube heat exchangers, plate heat exchangers, plate, RIM adiabatic fluid heat exchanger, dynamic scraped surface heat exchanger phase transition, HVAC coil, spiral heat exchanger and heat exchanger to direct contact.