It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higherpressure applications. Process fluid assignments to shell side or tube side. The basic design equation and overall heat transfer coefficient the basic heat exchanger equations applicable to shell and tube exchangers were developed in chapter 1. A bundle of tubes contained in a shell or container.
They can be applied to all purposes, from low temperature to high temperature, from low pressure to high pressure, and for heating, cooling, evaporation and condensation. The correction factor ft for a 12 heat exchanger which has 1 shell pass and 2 or more even number of tube passes can be determined from the chart in the. This 3d animated video explains how a shell and tube heat exchanger works. Lees book, thermal design and are commonly found in oil refineries, nuclear power plants, and other largescale chemical processes.
These are calculated using a pressure vessel design code such as the boiler and pressure vessel code from asme american society of mechanical engineers and the british master pressure vessel standard, bs 5500. Pdhonline course m371 2 pdh shell and tube heat exchangers. Delivery of heat exchanger operating like it is new. The controlled variable is the tubeside outlet temperature, and the. Technical catalogue section 5 shell and tube models. This is because it is compact, but can work at higher pressures than other designs. The actual developer of the program is webbusterz engineering software. Shell and tube heat exchanger consists of a shell in which large number of parallel tubes are present.
Heat exchanger with mounting kit flexible tubing omega loop supporting force opposite force as shown in the diagram on e thermal, mechanical and dynamic mount the heat exchanger on a supporting structure. Setting shell side and tube side pressure drop design limits. The tubes are thinwalled tubing produced specifically for use in heat exchangers. One fluid passes through the shell, and the other fluid passes through the tube bundle, therefore transferring heat. Troubleshooting shellandtube heat exchangers use these techniques and guidelines to ensure more reliable heat transfer d. Request information for shell and tube heat exchanger. Products shell and tube heat exchangers heat transfer. Here is an example of a 12 1 shell pass and 2 tube passes heat exchanger. Effectively design shellandtube heat exchangers torr. A typical heat exchanger, usually for higher pressure applications up to 552 bars, is the shell and tube heat exchanger. Specification of tube parameters size, layout, pitch.
The unit can be operated in cross flow, counterflow or parallel flow mode. The controlled variable is the tube side outlet temperature, and the. The heat exchanger discussed in this manual has been carefully assembled and factory tested to provide years of troublefree service. Temperature control of shell and tube heat exchanger by. Shell and tube heat exchanger standards american petroleum institute api ansiapi standard 660 8th ed tahun 2007 tema tubular exchanger manufactures association university of indonesia 21. Gulley, gulley computer associates, tulsa, oklahoma. How to model a shell and tube heat exchanger comsol blog. It is the most common type of heat exchanger in oil refineries and other large chemical processes. Whether you are looking to cool, heat, vaporise or condense, the shell and tube can meet your needs. The unidirectional shell and tube side flows allows for complete purging of the unit after a batch operation is completed. Shell and tube type heat exchangers they are designed so as to achieve a large transfer surface area within a small space, with minimal loss of fluid pressure. Shell and tube heat exchangers can be used to give the main guidelines to choose the correct heat exchanger type under the tema or asme code, mandatory requirements, specific prohibitions, nonmandatory guidance, construction activities, calculations and. The range of products comprises shellandtube heat exchangers, bolted and brazed plate heat exchangers as well as oil air cooling units and electrical oil pre.
Shellandtube heat exchangers are commonly used in oil refineries and other large chemical processes. In designing shell and tube heat exchangers, to calculate the heat exchange area, some methods were proposed in the literature. This proven fixed tubesheet shell and tube heat exchanger offers the cost effectiveness that comes with having a highly standardized design, while easily providing various options to meet specific customer. A shell and tube heat exchanger is a type of heat exchanger that consists of a cylinder. Shell and tube heat exchanger design the tube side fluid flows through an ultrapure, chemically inert fluoropolymer pathway. As you can see, in a 12 heat exchanger, the tube side fluid flows the entire length of the shell, turns around and flows all the way back.
Other articles where shellandtube heat exchanger is discussed. Here, we will cite only those that are immediately useful for design in shell and tube heat exchangers. The tube s carry a fluid through them, while the shell is also provided with an inlet and outlet for flow of another fluid. Effectively design shellandtube heat exchangers semantic scholar. Most shell and tube heat exchangers have multiple passes to enhance the heat transfer. Pdf shell and tube heat exchanger performance researchgate. Shell and tube heat exchangers can be used to give the main guidelines to choose the correct heat exchanger type under the tema or asme code, mandatory requirements, specific prohibitions, nonmandatory guidance, construction activities, calculations and technical formulae. The shell cylinder can be fabricated from rolled plate or from piping up to 24 inch diameters.
Standard xchange heat exchangers are engineered and manufactured by. Shellandtube, shellandutube, and shellandcoil heat exchangers. In this model, two separated fluids at different temperatures flow through the heat exchanger, one through the tubes tube side and the other through the shell around the tubes shell side. Our experienced inhouse engineering staff can design and fabricate virtually any type shell and tube heat exchanger to. Mechanical design asmetema, opera ons and maintenance 2p5th 29th september 2017 at kuala lumpur, malaysia. Description download makalah shell and tube heat exchanger comments. As its name implies, this type of heat exchanger consists of a shell a large pressure vessel with a bundle of tubes inside it. Khalil and others published shell and tube heat exchanger performance find, read and cite all the research you need on researchgate. It is a large tube shell which surrounds several smaller tubes a bundle. Gasketed joint leakage may be corrected by tightening the bolts of the headers. Definition a heat exchanger is a device used to transfer heat between one or more fluids.
The optimum thermal design of a shell and tube heat exchanger involves the consideration of many. Heat exchanger tube plugging relative to asme pcc2 2011. We look at some of the major components of the heat exchanger and its working principle. Shell and tube type heat exchanger, indirect contact type heat exchanger. One fluid hot or cold flow in shell and other hot or cold flow in the tubes. Api heat exchanger specification data sheets tema charts tube count table case study on heat exchanger repair using asme pcc2 philosophy and methods day 5. The tubes carry a fluid through them, while the shell is also provided with an inlet and outlet for flow of another fluid. Design and development of shell and tube heat exchanger for beverage article pdf available in modern mechanical engineering 45. Shell and tube series shell and tube utube, straight tube double wall single or multipass stainless, titanium or exotic metals fabricated from stainless steel or titanium, using the latest production techniques the extensive line of quality sec shell and tube heat exchangers encompasses all modern designs and configurations. Temperature control of shell and tube heat exchanger by using. Often described as the workhorse of the industrial process industry, the shell and tube heat exchanger is an immensely versatile unit, able to handle a wide range of process applications and conditions. The tube side media flows inside the tubes and is diverted by the heat exchanger head located on the end into two or four passes or circuits.
Petrosync shell and tube heat exchanger mechanical design. Shell and tube heat exchanger a shell and tube heat exchanger is a class of heat exchanger. Atex compliant series of compact heat exchangers with a fixed tube bundle. The mechanical design of a shell and tube heat exchanger provides information on items such as shell thickness, flange thickness, etc. In this model, two separated fluids at different temperatures flow through the heat exchanger, one through the tubes tube side and the other through the. The shellandtube heat exchanger is named for its two major components round tubes mounted inside a cylindrical shell.
Shell and tube heat exchanger design security and download notice download. Therein, popular analytical techniques such as log. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. The shell side fluid flows on the outside of the tubes and is contained by the shell where it is diverted by baffles or tube supports that also carry the weight of the tubes.
It utilizes a bundle of tubes through which one of the fluids flows. Cleaning heat exchanger plates with special chemicals. Shell and tube heat exchangers basic calculations a pdh. Shell and tube heat exchangers are commonly used in oil refineries and other large chemical processes. Since the exchanger is custom designed, the tube size can be smaller than nps 18 dn 6 mm that is the smallest size in table c. Standardized into logically grouped models with a heatexchange surface from 0. Selection of heat transfer models and fouling coefficients for shell side and tube side. Khalil and others published shell and tube heat exchanger performance find, read and cite all the research you need on. Both types are fullywelded and can be utilized in a variety of applications.
A shell and tube heat exchanger is a class of heat exchanger designs. The control of temperature in a shellandtube heat exchanger is demonstrated in figure 1, with cold water flowing on the tube side and steam on the shell side 5 where steam condenses and heats the water in the tubes. Report makalah shell and tube heat exchanger please fill this form, we will try to respond as soon as possible. Additionally, they can be found in many engines and are used to cool. Shell and tube heat exchangers basic calculations pdh online. A shellandtube heat exchanger is a type of heat exchanger that consists of a cylinder. The control of temperature in a shell and tube heat exchanger is demonstrated in figure 1, with cold water flowing on the tube side and steam on the shell side 5 where steam condenses and heats the water in the tubes. Request information for shellandtube heat exchanger. Pdf design of shell and tube heat exchanger single. The design of sthe includes thermal design and mechanical design. Selection of heat exchanger tema layout and number of passes.
Shell and tube heat exchangers construction details. This heat exchanger is one of the most common type used in industry. Optional mounting kits are available for all exergy shell and tube heat exchangers. A fixedtubesheet heat exchanger figure 2 has straight tubes that are secured at both ends to tubesheets welded to the shell. Heat transfer mechanism shell and tube heat exchangers are typically used for high pressure applications with pressures greater than 30 bar and temperatures greater than b. Thermal design of a shell and tube heat exchanger typically includes the determination of heat transfer area, number of tubes, tube length and diameter, tube.
Tech thesis on shell and tube heat exchanger design. These tubes are enclosed in a shell with provisions for the other fluid to flow through the spaces between the tubes. Shellandtube heat exchangers funke warmeaustauscher. Production and supply of every type of nut and pin. St series are 316l stainless steel shell and tube heat exchangers.
The models comprise basic units, each divided into two versions narrow wide baffle spacing, each also available as a 1pass version, a 2pass and 4pass version. Thermal design of shellandtube heat exchangers sthes is done by sophisticated computer software. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interacting design parameters which can be summarized as follows. Shell and tube heat exchangers are one of the most widely used type of heat exchanger in the processing industries 65% of the market according to h. Shellandtube heat exchanger definition and meaning. Your phone number select algeria angola armenia benin botswana burkina faso burundi cameroon cape verde central african republic chad congo congo, democratic. As its name implies, this type of heat exchanger consists of a shell a large vessel with a bundle of tubes inside it. Shell and tube series shell and tube u tube, straight tube double wall single or multipass stainless, titanium or exotic metals fabricated from stainless steel or titanium, using the latest production techniques the extensive line of quality sec shell and tube heat exchangers encompasses all modern designs and configurations. Shell and tube, shell and u tube, and shell and coil heat exchangers. Pdf design and development of shell and tube heat exchanger. Fast and detailed cleaning of heat exchanger plates.