Your general arrangement drawing will indicate the dry. 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. Specifying shellandtube heat exchangers understand what heat exchanger design specialists need to know and remember, you know your process best asif raza shellandtube heat exchangers are one of the most important and commonly used process equipment items in the chemical process industries cpi. A heat exchanger is a device to transfer heat from one fluid liquidgas to another. Shell and tube heat exchangers are used extensively throughout the process. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higherpressure applications. Shell and tube heat exchangers page 4 of 30 mnl 032a issued 29 august 08, prepared by j. Research article improvement in quality dimensions.
Fig 1 shows the typical working principle of a shell and tube heat exchanger. No provision to allow for differential thermal expansion developed between the tube and. One flows through the tubes the tube side and the other flows outside the tubes but. The following exchangers are exempted from the application of this specification. This figure shows you general stepbystep method of design of shell and tube heat exchanger design of shell and tube heat exchanger. Two fluids, of different starting temperatures, flow through the heat exchanger.
Shell and tube heat exchanger mechanical drawing autocad. Shell and tube heat exchangers society of petroleum. There are various types of heat exchangers used in process piping. The shellandtube heat exchanger is a nonfired pressure. Heat exchangers jordan university of science and technology. Define the duty q from mass flow rate, inlet temperature, outlet temperature, and heat capacity. Design and fabrication of shell and tube heat exchanger. Tube type plain material carbonsteel 900ansi in tubepattern 30 96 in pitch 1. A heat exchanger uses a variety of materials due to the different natures, states, temperatures, and contents of corrosive components of the fluids on shell and tube sides. Tubetotubesheet joints of some types of shellandtube heat exchangers, such as fixed tubesheet hyydrotest and closed feedwater heaters in which the channel is welded to the shell, are visible only from the channel side with the shell side under pressure and the channel side at atmospheric pressure. Specification of tube parameters size, layout, pitch. Selection of heat transfer models and fouling coefficients for shell side and tube side. The exchange can take place between a process stream and a utility stream cold water, pressurized steam, etc, a process stream and a power source electric heat, or between two.
The heat transfer performance of a crossflow shellandtube heat exchanger for hightemperature use in which heat transfer is augmented by the use of wall radiation in both shell and tube sides is. Units can be provided in accordance with asme sect. Pdf heat exchanger is necessary laboratory equipment in a. The pattern of flow through a shell and tube heat exchanger can have a number of different configuration options. And many more shell and tube heat exchanger like sea water heat exchanger, intank heat exchanger, bare tube heat exchanger, stainless steel heat exchanger, exhaust gas recirculation, gear box oil coolerintank, compressedair cooler, highpressure cooler, special solutions and wrv. Selection of heat exchanger tema layout and number of. Shell and tube multipass heat exchanger design tubular. Heat exchangers are used to transfer heat between two sources. Heat duty sthes can handle higher temperatures and pressures a. The list is not exhaustive but provides a simple guideline for the beginners.
Check pressure design code to be applied and applicable local regulations to be applied. Sx2000 steel shellcopper tubes xylem applied water. E1mnl032a design and rating of shell and tube heat. Among the industrial heat exchangers, exchangers of shell and tube configuration are one of the most popular ones, particularly for large capacity installations. Engineering drawing of heat exchanger tubes with header and baffles. To cool lube oil, fluids or jacket water, and for use where brass isread more. Additional materials are available for tubes and tubesheets. A heat exchanger is a device that is used to transfer thermal energy enthalpy between two or more. These heat exchangers are constructed using several parallel heat exchanger tubes. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interact.
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. This site is like a library, use search box in the widget to get ebook. Straight tube fixed tubesheet, 1, 2 and 4 pass options, covering areas as large as 6. Click download or read online button to get a working guide to shell and tube heat exchangers book now. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interacting design. In this exercise the students will 1 operate a tubeinshell heat exchanger and 2 analyze heat exchanger performance by the lmtd and ntu methods.
What are advantages and disadvantages of shell and tube. The shell and tube exchanger basically consists of a number of connected components, some of which are also used in the construction of other types of exchangers. Solidworks tutorial sketch heat exchanger in solidworks. 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 fluids, between a solid surface and a fluid, or between solid particulates and a.
Tube sheets are used to hold these heat exchanger tubes firmly in place. Compared to shellandtube exchangers, compact heat exchangers are characterized by a. Leslie is not responsible for injury to personnel or product damage due to improper installation, operation, andor maintenance of leslie controls, inc. Computer aided design of shell and tube heat exchangers. Double shell tube, leslie strives to use only highest quality components. Shell and tube heat exchangers are very commonly used as preferred heat transfer equipment in the process industry. It is the most common type of heat exchanger in oil refineries and other large chemical processes. Shell side out side of the tubes are inaccessible for mechanical cleaning. The pressurized components of the shell and tube exchanger are designed to be in accordance with a pressure vessel design code such as asme viii 1993 or bs5500 1994. Size sthes are capable of providing a larger surface area for heat transfer to take place while having a shorter length overall due to presence of multiple tubes.
Shell and tube heat exchangers are one of the most popular types of exchanger due to the flexibility the designer has to allow for a wide range of pressures. Developed software will also provide the 3d drawing for the designed shell and tube type heat exchanger and thus reduces the 3d modeling work. The exchangers exhibit more than 65% of the market share with a variety of design experiences of about 100 years. Shellandtube heat exchangers funke warmeaustauscher. Process fluid assignments to shell side or tube side. As its name implies, this type of heat exchanger consists of a shell a large pressure vessel with a bundle of tubes inside it. Pdf a heat exchanger is a equipment used for transferring heat from one medium to another. Carbon steel shell and tubesheets with castiron bonnets and copper tubes are standard. Cms two pass standardized utube exchangers have been manufactured to the specifications displayed. I usually calculate for both shell side and tube side just to ensure that the duty is similar. Shellandtube heat exchangers are commonly used in oil refineries and other large chemical processes. Shell and tube multipass heat exchanger design tubular juice heater design calculation with online calculator. Shell and tube heat exchanger a shell and tube heat exchanger is a class of heat exchanger. A shell and tube heat exchanger is a class of heat exchanger designs.
The locations of the nozzles and the orientation of the. 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. Durgesh bhatt, priyanka m javhar conducted a shell and tube heat exchanger performance analysis it is observed that by changing the value of one variable the by keeping the rest variable as constant we can obtain the different results. Galvanic corrosion and prevention of erosion shall be governing considerations.
Shell and tube heat exchangers basic calculations pdh online. Inside the shell, baffles are typically installed which help in holding the tubes and directing the shell fluid flow to some extent. Selection of heat exchanger tema layout and number of passes. They are widely shellandtube heat exchangers are the most widely used used. As its name implies, this type of heat exchanger consists of a shell a large vessel with a. Shellandtube heat exchangers are classified and constructed in. Due to the high heat transfer efficiency of the plates, plate type heat exchangers are usually very small when compared. Ix of the boiler and pressure vessel code, tema, api, hei, and 3 a standards. The basic layout for a countercurrent shell and tube heat exchanger together with the associated heat curve for a condensing process generated from chemcad are shown. The cylindrical shell containing the tube plates is extended at each end beyond the tube plate, the extended portion being divided into compartments by baffles. Project standards and specifications shell and tube. This is due to the larger area the plates provide over tubes. In this present work, a shell and tube heat exchanger with a 1shell. Shell and tube heat exchangers basic calculations instructor.
So to facilitate the basic comprehension of the terms used for shell and tube heat exchangers calculations it is very important to remember some. A heat exchanger is a device in which energy is transferred from one fluid to another across a solid surface. Heat exchanger mechanical drawing with and dimensions in mm. The developed computer software will eliminate the problem of iterative calculations. I need drawing on autocad of type s heat and b cover of shell and tube heat exchanger i have the dimensions but i need you draw it to scale in autocad. Bell and gossett also offers a complete line of tank heaters, straight tube heat exchangers, tank suction heaters, gas. Setting shell side and tube side pressure drop design limits. Heat exchangers xylem applied water systems united states. Heat exchangers engineering school class web sites.
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