The mechanical design of a shell and tube heat exchanger provides information on items such as shell thickness, flange thickness, etc. Shell and tube heat exchangers are a simple but effective construction, the principals of which have been around for well over 100. Determines the preliminary size for a shell and tube. Standardized into logically grouped models with a heatexchange surface from 0. Specification of tube parameters size, layout, pitch. Typically, a heat exchanger is used with two process streams. Shellandtube, shellandutube, and shellandcoil heat exchangers. Heat transfer by heat exchangers tema design tema designations of heat exchangers because of the number of variations in mechanical designs for front and rear heads and shells, and for commercial reasons, tema has designated a system of notations that correspond to each major type of front head, shell type and rear head. Heat exchanger calculation spreadsheet excel format.
Shell and tube heat exchanger as the name proposed, they are built around tubes mounted in a cylindrical shell, the tubes are parallel to the shell. Jul 20, 2016 tema stands for tubular exchangers manufacturers association and is a set of standards that were developed by leading shell and tube manufacturers. It utilizes a bundle of tubes through which one of the fluids flows. The shell and tube heat exchanger type is among the most popular heat exchangers used in the industry the shell and tube heat exchanger gets its name from the two major components the shell and the tubes. Selection of heat transfer models and fouling coefficients for shell side and tube side. Titanium heat exchangers are commonly used in marine applications such as salt.
Request information for shellandtube heat exchanger. I am new to this website, i wanted to share a few spreadsheets, dont know whether this where i should share the file or not. If youve ever researched liquid cooled products you may have come across two options, shell and tube or plate heat exchangers. A shell and tube heat exchanger is a class of heat exchanger designs. In present days shell and tube heat exchanger is the most common type heat exchanger, it is widely used in oil refinery and other large chemical processes, because it is suitable for high pressure applications. The optimum thermal design of a shell and tube heat exchanger involves the. Vintage bath tube, sink with a water tap, folded bath towels sunscreen lotion and cream bottle and. Singlewall, heat exchanger doublewall, heat exchanger component material heat exchanger shell carbon steel, astm sa106, gr. As its name implies, this type of heat exchanger consists of a shell a large pressure vessel with a bundle of tubes inside it.
The heat exchanger discussed in this manual has been carefully assembled and factory tested to provide years of troublefree service. Incropera 19 doublepipe heat exchangers fundamentals of heat and mass transfer, 6th edition. This design can also allow pulling the entire tube bundle assembly from the shell to clean the shell circuit of the exchanger. One fluid flows inside the tubes is called the tube side fluid, while the other fluid flows across and along the axis of the exchanger in the shell side shell side fluid. B, asme u stamped with 316 ss twopass head heat exchanger tube bundle 58in od x 16 bwg wall, admiralty brass heat exchanger tube sheets leadfree brass heat exchanger tube bundle end cap leadfree brass. For simplicity the rst one is often referred to as the shell and tube heat exchanger and the second is referred to as the shell and tube condenser even though both are versions of a shell and tube heat exchanger. Request information for shell and tube heat exchanger. Shellandtube exchangers are classified and con structed in accordance with the widely used tema tubular exchanger manufacturers. Technical catalogue section 5 shell and tube models. These standards define the style of heat exchanger and the machining and assembly tolerances. The shell and tube heat exchanger model is added to a previously developed orc model 4 in which the heat exchangers were assumed to be. The shellandtube heat exchanger type is among the most popular heat exchangers used in the industry the shellandtube heat exchanger gets its name from the two major components the shell and the. The locations of the nozzles and the orientation of the. It explains shell side and tube side of heat exchanger.
There should also be adequate floor space in front and behind to permit the. Shell and tube heat exchangers construction details. Products shell and tube heat exchangers heat transfer. The second was the tema g shell and tube heat exchanger with condensation on the shell side. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higherpressure applications. The tubes may be permanently positioned inside the shell fixed tube sheet exchanger or may be removable for ease of cleaning and replacement floatinghead or u tube exchanger. Other articles where shellandtube heat exchanger is discussed. Setting shell side and tube side pressure drop design limits. Pdhonline course m371 2 pdh shell and tube heat exchangers. These heat transfer devices are engineered to meet to a wide variety of applications. Shellandtube heat exchangers funke warmeaustauscher. Designs from 2 to around 12 in shell diameter are available that feature shell constructions of low cost welded steel, brazed pipe with hub forgings, cast end bonnets and copper tubing rolled or brazed to the tube sheet. Normally the vibration rate of the heat exchanger cannot exceed 0. Thermal analysis of shell and tube type heat exchanger using.
Tube container of sun cream isolated on white glossy background. The shellandtube heat exchanger is modeled using the belldelaware method for the shellside heat transfer coefficient and pressure drop. Details of construction practices are described by saunders. Pdf design of multiple shell and tube heat exchangers in series. The tubes are thinwalled tubing produced specifically for use in heat exchangers.
Shell and tube heat exchanger design security and download notice download. Our basco type 500 remains the industry standard in ultimate value and longterm reliability. These are calculated using a pressure vessel design code such as the. This video briefs shell and tube type heat exchanger introduction, construction, workflow, etc. The shell cylinder can be fabricated from rolled plate or from piping up to 24 inch.
Shell and tube heat exchanger is the most widely used heat exchanger. Tema consists of 20 companies and has since the start created standards for shell and tube heat. Shell and tube heat exchangers rajiv mukherjee, engineers india ltd. Shell and tube heat exchanger types yes yen graphitech. Definition a heat exchanger is a device used to transfer heat between one or more fluids. Shell and tube heat exchanger design software for thermal. Whether you are looking to cool, heat, vaporise or condense, the shell and tube can meet your needs. 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. Tema has developed a notation system to designate major types of. The shell cylinder can be fabricated from rolled plate or from piping up to 24 inch diameters.
Shell and tube heat exchanger design linkedin slideshare. In this present work, a shell and tube heat exchanger with a 1shell, 1tube. Digitalflo steamtowater, shell and tube, water heater. Pdf multiple shell and tube heat exchangers in the series are employed to handle the temperature cross in the. Shell and tube heat exchanger shell side pressure drop posted in student. Correlations for the heat transfer coefficient and pressure drop were based on two. Your phone number select algeria angola armenia benin botswana burkina faso burundi cameroon cape verde central african republic chad congo congo, democratic. Consisting of a bundle of small tubes within a large cylinder or shell. In the area of shellandtube heat exchangers funke has a mature product. Water component for corrosion limit on copper ph 7. I am new to this website, i wanted to share a few spreadsheets, dont know whether this where i should.
The required heat transfer area, the number of tubes and the shell size are. The tube s carry a fluid through them, while the shell is also provided with an inlet and outlet for flow of another fluid. Thermal analysis of shell and tube type heat exchanger. Tema, inc tabular exchanger manufacturers association, inc. There are two distinct types of shell and tube heat exchangers, based in part on shell diameter. The hot and cold fluids alternate between each of the plates. Shell and tube heat exchanger shell side pressure drop.
A plate type heat exchanger, as illustrated in figure 2, consists of plates instead of tubes to separate the hot and cold fluids. Heat exchanger equipment field manual, stewart and lewis. Shell and tube, shell and u tube, and shell and coil heat exchangers. Jun 25, 2018 this video briefs shell and tube type heat exchanger introduction, construction, workflow, etc. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. Shell and tube heat exchanger step by step calculations to. Doublepipe heat exchangers shell and tube heat exchangers compact heat exchangers gasketedplate heat exchangers. On the tubeside, the heat transfer coefficient and pressure. Determines the preliminary size for a shell and tube heat exchanger based on the process information provided. Plain tubular exchangers, shellandtube exchangers with plain tubes, and. The design of shell and tube heat exchanger using kern method for water and steam combination is validated by wellknown dittusboelter equation of turbulent flow inside tube. Shell and tube heat exchanger stock vector illustration. To make the most of exchanger design software, one needs to understand sthe classi. Reassembly tube stack the tube stack should be inserted into the body with the arrow on the face of the tube plate aligned with the arrow on the end of the body.
Once the exchanger is design in edr, the file is saving with. Shell and tube exchangers an overview sciencedirect topics. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higherpressure. Heat exchangers jordan university of science and technology. Heat exchangers doehdbk1018193 types of heat exchangers. These tubes are enclosed in a shell with provisions for the other fluid to flow through the spaces between the tubes. Reassembly tube stack the tube stack should be inserted into the body. This proven fixed tubesheet shell and tube heat exchanger. Tema stands for tubular exchangers manufacturers association and is a set of standards that were developed by leading shell and tube manufacturers. 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. Selection of heat exchanger tema layout and number of passes. Design of shellandtube heat exchangers using multiobjective. However, in a heat pipe heat exchanger, the heat pipe not only acts as a separating.
The author claims no originality but hopes that the format and contents will provide a. Tube type plain material carbonsteel 900ansi in tubepattern 30 96 in pitch 1. Basically, a heat exchanger does the function of either cooling or heating a fluid depending on the requirement. Heat transfer by shell and tube heat exchangers tema.
The shellandtube heat exchanger is named for its two major components round tubes mounted inside a cylindrical shell. 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. St series are 316l stainless steel shell and tube heat exchangers. The shellandtube heat exchanger is a nonfired pressure. Effectively design shell and tube heat exchangers, cep feb 1998, mukherjee.
It utilizes a bundle of tubes through which one of the. Dear all, i am trying to calculate the pressure drop on shell side of the heat exchanger. A bundle of tubes contained in a shell or container. There exists many different tools used to design, size and rate heat exchangers. Heat exchanger design handbook 1994 begell house inc, new york.
Modelling of shell and tube heat exchangers lund university. A typical process industry shell and tube exchanger has a surface area density of less than 100 m2m 3 on one fluid side. Therein, popular analytical techniques such as log mean temperature difference lmtd and effectivenessnumber of. Unlike other tools, ensures that the calculations are performed step by step to help in understanding the design calculations. A typical shell and tube exchanger tema sheet is shown in figure 52. Both the shell and tube and plate type heat exchangers work with the same principles, exchanging heat between two fluids through thermal conduction, but with very different construction methods. The combined effect of all these correction factors for a welldesigned shellandtube heat exchanger is of the order of 0. A computer program in matlab has been written for shell and tube heat exchanger design.
The heat exchanger discussed in this manual has been. Both types are fullywelded and can be utilized in a variety of applications. Misaligned flanges can induce extraneous stresses in the vessel walls and are subject to leakage as well. Heat transfer optimization of shellandtube heat exchanger through cfd studies masters thesis in innovative and sustainable chemical engineering usman ur rehman department of chemical and. As shown in figure 47, the shell and tube heat exchanger consists of the shell, which is a large vessel with one or more inlet and one or more outlet nozzles. Below are some of the tools and information we use on a routine basis. Inside the shell, baffles are typically installed which help in holding the tubes and directing the shell fluid flow to some extent. In fact, the fixed tube sheet is the least expensive construction.
B, asme u stamped with 316 ss twopass head heat exchanger. This device has straight tubes that are secured at both ends to tube sheets welded to the shell. Atex compliant series of compact heat exchangers with a fixed tube bundle. R sekulib university of kentucky introduction a heat exchanger is a device that is used for transfer of thermal energy enthalpy between two or more. The principal advantage of the fixed tube sheet construction is its low cost because of its simple construction. Design and development of shell and tube heat exchanger for beverage article pdf available in modern mechanical engineering 45. In addition, a number of different head and shell designs are.
738 675 244 413 1083 452 521 818 89 510 1193 163 918 569 954 746 1059 390 38 1276 714 729 897 1241 1322 1049 320 303 345 402 992 1130 71 1358 151 493 1320 192 1114 1430 839 1400