Just How Does A Heat Exchanger Work?

By Author: Grover Jadin
Total Articles: 3
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If you do not know what a heat exchanger is, it is a piece of equipment which has been engineered in order to facilitate the exchange of heat energy from one liquid to another. Although this may sound very technical, the majority of us have a heat exchanger inside our houses known as the refrigerator. The air conditioning inside your family car, office or home will also work in the exact same manner.
Although it doesn't fit into the topic of heating and air conditioning there is a different heat exchanger that you usually make use of daily and that's your vehicle. As your car's engine gets hotter, the liquid within your radiators becomes hotter but as the air streams past the radiator coils, the heat energy is transferred to the air consequently preventing the rad fluid from getting hot.
There are many sorts of heat exchangers however let us firstly look at the usual design for a heat exchange solution.
Normally we'd be dealing with two stream varieties one hot and one cold and there are three primary circulation arrangements. The first one is called a parallel heat flow. This not surprisingly means that the ...
... fluids move in parallel to each other but it's also defined by the fact that they enter into the heat exchanger from the same side. Another type of flow layout is the counter flow. Just like the name hints in this arrangement the fluids enter the heat exchange from opposite ends of the setup however one significant element to be aware of is that although they are entering from opposing ends both are still flowing in the very same direction. The last and most effective method is the counter current flow. With this arrangement not only do the fluids enter into the heat exchanger through opposing ends they also flow in reverse directions.
Understandably there are various factors that may influence the performance of the heat exchanger, but of course it largely depends on what kind of problem is trying to be resolved. For example, think about a shell and tube exchanger, that is a very common heat exchange system found in large chemical processes. A shell and tube exchanger consists of a container with a system of pipes held inside.
A few of the elements that need to be thought about will be
1, Exactly where will the unit be housed? - This is to make sure that the heat exchanger can fit within the specific location.
2, The budget available - Naturally finding out how much money is assigned to pay for a unit is important.
3, The tubing diameter - A smaller diameter will mean the unit is more affordable to purchase and can squeeze into a smaller place however it could possibly be vulnerable to blocking and be tough to clean.
4, The size of the tubing wall - It all depends on the materials going through the unit as different liquids or gases can impact on the pipes in specific ways. The thickness might also be driven by things like deterioration rates as well as availability of spare parts.

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