Heat is moved from one place or liquid to another in almost all mechanical, chemical, or electrical systems. We use a heat exchanger for this process of moving heat. Heat exchangers are used worldwide to move heat from one place to another. The shell and tube heat exchanger is made up of a group of tubes. The TEMAE type of STHE is the most common because it is robust, easy to build, and can work at various pressures and temperatures. This article is mainly about the shell and tube heat exchanger. It talks about its different types, how it works, its parts, and many other pertinent things.
What is Shell and Tube Heat Exchanger?
STHE is a piece of mechanical equipment that transfers heat between two working fluids by putting tubes in a cylindrical shell. A tube and tube heat exchanger is another name for a shell and tube exchanger.
As the name suggests, an exterior shell (a pressure vessel) and some tubes make up this heat exchanger. One liquid flows through the tube, and the other flows over it. It moves heat from one fluid to another in this way.
The fluid inside the tube and the shell have different temperatures. This difference in temperature acts as a force to move the temperature between the two fluids.
There may be both longitudinally finned tubes and plain tubes in the bundle of tubes. These tubes can be set up differently, such as with the head floating, the tubes fixed, or in a U-shaped pattern.
These heat exchangers work best when there is much pressure. Most of the time, they are used in big chemical plants and oil refineries.
Buying and maintaining these exchangers is low; they work well and are easy to build. The shell and tube heat exchanger is better than other heat exchangers at transferring heat. But these heat exchangers take up more space to install than plate heat exchangers that can do the same job.
Shell and Tube Heat Exchangers: How do they work?
With a shell and tube heat exchanger, two fluids flow through tubes, and the third flows into the shell. There is an intake for the shell fluid on the top of the heat exchanger and a separate inlet for tube fluid at the bottom right.
The shell and tube sides are the two parts of a shell and tube heat exchanger. To work with a shell and tube heat exchanger, it is essential to decide which side the hot fluid will go in and which side the cold liquid will go in. This is called fluid allocation.
When the pressures of the fluids are different, the liquid with less pressure goes in through the shell inlet because the tubes are made to handle high pressure.
Time is money when it comes to both loading and unloading. Shell and tube heat exchangers make it possible to pump materials into the process equipment company as soon as possible. They also transfer temperatures efficiently, so you don’t have to use extra energy to ensure the materials are at the right temperature.