How does heat transfer work in a shell and tube heat exchanger. Two exchangers in series can be modeled in one shell. Singlephase heat exchangers are usually of the tubeandshell type. May 28, 2017 this figure shows you general stepbystep method of design of shell and tube heat exchanger. How to design a shell and tube heat exchanger quora. Heat transfer equipment may be designated by type or function it performs, such as chiller, condenser, cooler reboiler, etc. Heat pipe heat exchanger design theory r k shah and a d giovannelli. A practical guide for planning, selecting and designing of shell and tube exchangers.
Shah rochester institute of technology, rochester, new york. The analysis is extended using the above kern method with different fluid combinations. Design and operation of heat exchangers and their networks. Chapter 2 basic thermal design theory for heat exchangers. The combined effect of all these correction factors for a welldesigned shellandtube heat exchanger is of the order of 0. The project involved the design of a shell and tube heat exchanger with a number of specifications. Heat exchanger theory and the heat exchanger design equation. Select a suitable type of shell and tube exchanger. 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.
Completely revised and updated to reflect current advances in heat exchanger technology, heat exchanger design handbook, second edition includes enhanced figures and thermal effectiveness charts, tables, new chapter, and additional topicsall while keeping the qualities that made the first edition a centerpiece of information for practicing engineers, research, engineers. A practical guide for planning, selecting and designing of shell and tube exchangers manfred nitsche. In this paper, multiobjective optimization of the heat transfer area and pumping power of a shellandtube heat exchanger is presented to provide the designer with multiple paretooptimal solutions which capture the tradeoff between the two objec. Heat exchanger design an overview sciencedirect topics. They are made from bundles of tubes and may be composed of several types of tubes. The information presented here along with the books referenced here is certainly a good start. Shell and tube heat exchanger wikimili, the free encyclopedia. Shell and tube heat exchanger design is an iterative process, which goes through the following steps. Types of heat exchangers shell and tube, plate type. The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air.
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. In a single pass heat exchanger, the fluid goes in one end of each tube and out the other. This comprehensive reference covers all the important aspects of heat exchangers hestheir design and modes of operationand practical, largescale applications in process, power, petroleum, transport, air conditioning, refrigeration, cryogenics, heat recovery, energy, and other industries. With the optimized design of shell and tube heat exchanger sthe with new baffle configuration, it was found that thermal performance of the heat exchanger with threezonal baffles was slightly improved, whereas shell side pressure drop was significantly decreased compared to the conventional baffled sthe. Define design parameters such as number of tube passes, tube size, shell id etc. Final episode of the year here folks and i wanted to talk about the basics of. Because this is so many, i think i will divide the topic into three topics.
A shell and tube heat exchanger is a class of heat exchanger designs. This is a simplified example of a shell and tube exchanger. Apr 24, 2017 in my view, the best books for heat exchanger design are these. 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. Shell and tube heat exchanger design calculations to find the required heat transfer area can be done if the needed rate of heat transfer from one fluid is known along with the desired inlet and outlet temperatures of the other fluid and an estimate for the overall heat transfer coefficient. Design improvements of a shell and tube heat exchanger based on practical experience and numerical. Kuppan is a noted authority in the area of heat exchangers, pressure vessels, and railway technologies. Good practice for heat exchanger selection and design page 4 of 12 use one tube pass per shell pure counter current.
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. Shell and tube heat exchanger step by step calculations to. Due to the high heat transfer efficiency of the plates, plate type heat exchangers are usually very small when compared to a tube and shell type heat exchanger with the same heat transfer capacity. I usually calculate for both shell side and tube side just to ensure that the duty is. The first stage is concerned with the selection of the most appropriate heat exchanger type, for example, the choice of a shell and tube exchanger as opposed to a plate, rotating wheel, heat pipe, etc. Htri shell and tube hx posted in industrial professionals. Multimedia edition of heat exchanger design handbook hedh is the standard reference source for heat transfer and heat exchanger design. Shells heat exchanger design handbook, multimedia edition.
As its name implies, this type of heat exchanger consists of a shell a large press. 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. Heat exchanger design to choose a suitable heat exchanger for a certain application requires a level of knowledge and experience. The the most fundamental variable in heat exchanger tubes can have any geometry such as lat or round. Boiling heat transfer and twophase flow in tubes and tube bundles m k jensen. Heat exchanger theory, calculations, and design bright hub. Design of shell and tube heat exchanger layout design. The steam generator and main condenser of nuclear facilities are of the twophase, ordinary heat exchanger classification. I am trying to design a heat exchanger but i am getting shell in parallel x 2 what are the parameters i should vary so that i can get a single shell design. Read heat exchanger design guide online by manfred nitsche and. This refers to the number of times the fluid in the tubes passes through the fluid in the shell. This multimedia edition contains interactive features that bring the rigorous and authoritative material from hedh to life.
E1mnl032a design and rating of shell and tube heat. In my view, the best books for heat exchanger design are these. 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. Design and rating of shell and tube heat exchangers page 4 of 30 mnl 032a issued 29 august 08, prepared by j. Read unlimited books and audiobooks on the web, ipad, iphone and android. Feb 23, 2000 this comprehensive reference covers all the important aspects of heat exchangers hestheir design and modes of operation and practical, largescale applications in process, power, petroleum, transport, air conditioning, refrigeration, cryogenics, heat recovery, energy, and other industries. A plate type heat exchanger, as illustrated in figure 2, consists of plates instead of tubes to separate the hot and cold fluids. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and. The basic heat exchanger design equation can be used for a variety of types of heat exchangers, like double pipe heat exchangers or shell and tube heat exchangers. Heat exchanger design handbook kuppan thulukkanam this comprehensive reference covers all the important aspects of heat exchangers hes. Process fluid assignments to shell side or tube side. Most shell and tube heat exchangers are either 1, 2, or 4 pass designs on the tube side. All to often i find engineering books with only theory used for the classroom but.
As its name implies, this type of heat exchanger consists of a shell a large pressure vessel with a bundle of tubes inside it. Good practice for heat exchanger selection and design. Shell and tube heat exchanger shell and tube heat exchangers consist of series of tubes. The two most common heat exchanger design problems are those of rating and sizing.
Bentleys autopipe vessel offers designers a comprehensive and userfriendly solution for mechanical design for virtually any type of shell and tube heat exchangers all based on global. My fire water pump calculation post series will be postponed due to these topics. Q is the rate of heat transfer between the two fluids in the heat exchanger in buthr, u is the overall heat transfer coefficient in btuhrft 2 o f, a is the heat transfer surface area in ft 2, and. Pdf on feb 8, 2020, phelelani eshmael mamba and others published heat exchanger design report design of a shell and tube heat exchanger, 1 shell 1 tube pass with fixed tube head and counter. The shell inlet is at the top rear and outlet in the foreground at the bottom. A practical guide for planning, selecting and designing of shell and tube exchangers takes users on a stepbystep guide to the design of heat exchangers in daily practice, showing how to determine the effective driving temperature difference for heat transfer. This is due to the larger area the plates provide over tubes.
This figure shows you general stepbystep method of design of shell and tube heat exchanger design of shell and tube heat exchanger. Define the duty q from mass flow rate, inlet temperature, outlet temperature, and heat capacity. Shell and tube heat exchangers are commonly used in the chemical industries and separations processes. When designing or choosing a heat exchanger there is no single correct solution. Heat exchanger design handbook mechanical engineering. Aug 24, 2017 bentleys autopipe vessel offers designers a comprehensive and userfriendly solution for mechanical design for virtually any type of shell and tube heat exchangers all based on global. Heat exchanger theory and the heat exchanger design. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higherpressure applications. He is author of the successful heat exchanger design handbook, first edition published by marceldekker now crc press in 2000.
Heat exchanger theory leads to the basic heat exchanger design equation. The optimal design of shellandtube heat exchangers is explained. Part of the eurotherm seminars book series eurotherm, volume 18. Chapter 5 heat exchangers faculty of engineering and. The choice of shell and tube type is determined chiefly by factors such as the need for the provision for differential movement between shell and tubes, the design pressure, the design temperature, and the fouling nature of the fluids rather than the function. Thulukkanam kuppan works for the indian railway service of mechanical engineers, and is based in chennai, india. The mechanical design of a shell and tube heat exchanger provides information on items such as shell thickness, flange thickness, etc. The analysis is extended using the above kern method with different fluid. Knowledge about heat exchanger theory, calculations and design is important because of the widespread use of a variety of heat exchangers for industrial use and in everyday life. It may also be used for the preliminary design of shell and heat exchangers in actual industrial. Shell and tube heat exchanger design linkedin slideshare. In this present work, a shell and tube heat exchanger with a 1shell, 1tube pass and counter current flow designed from kerns method is presented. Thermal design of shell and tube heat exchangers bill watson on. Selection, design, and operation, second edition, is fully.
Most shellandtube heat exchangers are either 1, 2, or 4 pass designs on the tube side. Provides industrial insight to the applications of the basic theory developed. The shell and tube heat exchanger design software is developed for use in the teaching of thermal and hydraulic design of shell and tube heat exchangers usually at the senior undergraduate level of a mechanical or chemical engineering course. Heat exchanger design handbook mechanical engineering kuppan. Wiley also publishes its books in a variety of electronic formats. I usually calculate for both shell side and tube side just to ensure that the duty is similar. Shell and tube heat exchanger design software for thermal. The determination of the optimum heat exchanger design for a specific, well defined application can be regarded as a two stage process. Industrial heat exchanger types include the most common double pipe heat exchangers, shell and tube heat exchangers, as well as spiral, flat plate, and fin tube heat exchangers. Due to the high heat transfer efficiency of the plates, plate type heat exchangers are usually very small when compared to a tube and shell type heat exchanger with the. At the ends of the heat exchanger, the tubeside fluid is. A unique, singlesource volume offering essential material on heat exchanger design in a unified approach suitable to many applications, fundamentals of heat exchanger design details an indepth thermal and hydraulic design theory underlying twofluid heat exchangers for steadystate operation.
Setting shell side and tube side pressure drop design limits. Design optimization of a shellandtube heat exchanger. Unlike other tools, ensures that the calculations are performed step by step to help in understanding the design calculations. Design and operation of heat exchangers springerlink. The hot and cold fluids alternate between each of the plates. Sekulic this book contains all basic and necessary information about heat exchanger design. D o l and u is the overall heat transfer coefficient. Shell and tube heat exchanger design software for educational. Heat transfer equipment design advanced study institute book. Apr 16, 2016 the classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the coils, which cools the coolant and heats the incoming air. A heat exchanger involves two flowing fluids separated by a solid wall. Reflecting the authors extensive practical experienc. In this paper, multiobjective optimization of the heat transfer area and pumping power of a shell and tube heat exchanger is presented to provide the designer with multiple paretooptimal solutions which capture the tradeoff between the two objec.