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The Process of Heat Exchange by Andrew Stratton
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The Process of Heat Exchange |
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Business
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Many individuals do not realize the complex physical and chemical processes that must occur for heat exchange to happen successfully. To begin, not all equipment that is involved in the transfer of warm energy is necessarily being used to make the environment where the equipment is warmer. In fact, refrigerators and air conditioners could also be understood as similar equipment to a boiler or water heater. That's because air conditioners and refrigerators are manufactured to take away warmth from the air. Typically, the process occurs when one fluid transfers energy to another. You can distinguish different categories of exchangers based on the ways fluid flows between them. There are three main types referred to as parallel-flow, cross-flow, and countercurrent. Parallel flow means that all the fluid involved moves in the same direction. This means it both enters and exits in the same way. Cross-flow means that the fluid is directed to move in a perpendicular manner. This creates a different kind of energy transfer. Countercurrent exchangers are the most efficient and effective type. They can also be the most complex. In countercurrent, fluid flows in opposite paths, each exiting where the other enters. You can also classify various models based on their composition. There are often tubes or hot plates involved in the composition. These pieces can be arranged in various ways to create a productive heat exchange. There are four main types that we will outline here. Shell and Tube Model These are built with multiple tubes that allow for liquid to flow. There are two chambers where the transfer takes place. The first chamber contains the liquid that is aiming to be cooled or heated. The second chamber contains liquid that aims to trigger this transfer of energy. There are two ways to do this. One involves removing heat from the first chamber by absorbing it, also known as cooling. Another involves using its own heat to heat the first chamber. There are three main paths that these exchangers use. Hot-plate Model This is made up of thin, often metal, plates that are joined together with a small amount of space between each one. They are usually held together through rubber gaskets. There is a significant surface area to these exchangers, which allows fluid to flow between plates, extracting heat as it goes. Because of their larger size, the plate equipment is often more effective than the shell and tube models. Regenerative Model and Adiabatic Wheel Model Regenerative models have the same fluid being passed through the model. The adiabatic wheel usually has threads that permeate the fluids to extract heat from the piece of equipment. Heat exchange is vital to a large number of mechanical processes that we use today, including air conditioning and refrigeration. Contact your local provider to learn more about the process. To learn more about heat exchange visit http://www.heatexchangeonline.com/ME2/Default.asp.
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