Exploring Heat Exchangers
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Various companies in the HVAC, chemical, process, and also petroleum industries employ shell and tube heat exchangers design, which is more commonly named the u-tube design, frequently. With numerous parallel tubes running in the shell, these units come into play when big amounts of fluids require heated or cooled. This kind of design lends itself well because of the enormous heat transfer area and its ability to provide a great deal of efficiency in the heat transfer process.
You can find a variety of shell and tube heat exchangers, the type used will depend on the requirements of the process involved. They are able to continuously provide transfer of heat using a quantity of passes of one of the fluids, or both of them. You will discover shell and tube heat exchangers design models which might be two pass and in many cases four pass models that are standardized and customized models in multi-pass version.
Shell and tube heat exchanger design models found in oil refineries as well as other high-pressure applications just like chemical plants and even power plants of differing types, take advantage of this technology. Of these plants, the heat exchangers have fluids with different type of temperatures flowing through the tubes as well as the shell. One of the liquids flows inside the tubes, and the other outside the tubes but within the shell around the tube bundle. Into the shell, there are actually baffles used which help to keep the fluids moving and reduce stagnation inside the shell part of the exchanger. The tube bundle within one of these brilliant substantial heat exchangers can be made of numerous types of tubes; tube types may be longitudinally finned or perhaps plain, and produced of many different corrosion resistant materials like copper alloy and stainless steel.
Heat exchangers work by transferring heat from one of the fluids to the other through the walls of the tubes, either from inside the tube to the shell side or the other way around, depending on the needs of the particular process. Used with both gases or liquids in each of the shell side and tube side, the highest efficiency exchangers work with a large heat transfer area, which means that several tubes are involved. This helps to also trap waste heat and conserve resources. A few heat liquids to boiling and use the vapor to get energy. Some other cool vapors and turn them into liquids; these are actually condensers. Steam trains apply exchangers, as well as power plants use steam-driven turbines along with surface condensers to be able to constantly recycle steam. |
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Author Resource:-
Different types of shell and tube heat exchangers have many different uses. Single-phase shell and tube heat exchangers design function as heating boilers, for steam production energy on locomotives, and as condensers that are used for cooling. In addition to industrial use, shell and tube heat exchangers are important parts of many modern climate control systems.
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By :
Corinth James
Submitted
2012-02-02 06:22:17 |
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