And the heat exchanger is insulated against the heat losses. Heat exchangers are devices that regulate efficient heat transfer from one fluid to another. You might refer to kuppans book or another source for more recommendations on construction and materials selections bottomline. In general, the design of heat exchangers is a compromise between conflicting. 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. Mod04 lec17 heat transfer corelations for flow across tube banks mod04 lec18 momentum and heat transfer analogies mod04 lec19 boundary layer heat transfer. These devices can be used widely both in daily life and industrial applications such as steam generators in thermal power plants, distillers in chemical industry, evaporators and condensers in hvac applications and refrigeration process, heat sinks, automobile radiators and regenerators. Heat exchangers are devices that transfer energy between fluids at different temperatures by heat transfer. Types of heat exchanger, process design of shell and tube heat exchanger, condenser, and reboilers. Two approaches to heat exchanger design that will be discussed are the lmtd method and the effec tiveness ntu method. Download process design of heat exchanger nptel book pdf free download link or read online here in pdf. In this lecture we are going to analyze the tubular heat. In this chapter, the design of the heat exchanger will be limited to determining the product ua of the exchanger surface a by the overall heat transfer coefficient u, the accurate estimation of the latter depending on the internal constructive details of the exchanger.
Heat transfer nptel online videos, courses iit video lectures. The first type of a heat exchanger is called the recuperative type, in which heat are exchanged on either side of a dividing wall by fluids. Condenser design the design of condenser is similar to a typical shell and tube exchangers. The heat exchanger should be mounted in a well ventilated area, preferably outdoors, as these units dissipate heat to the ambient air. We will consider only the more common types here for discussing some analysis and design methodologies. In addition, we will examine various aspects of heat exchanger design and analysis. The calculations for detail study can be found out in reference 3 page 283285. Using aspen hysys and aspen edr for ratingchecking heat exchanger design. Information about motors and any accessories provided with an.
The counter flow design is most efficient, in that it can transfer the most heat from the heat transfer medium. Design charts for plateandframe exchangers when it comes to compact heat transfer technology, engineers often find themselves at the mercy of the equipment manufacturers. Indranil ghosh cryogenic engineering center indian institute of technology, kharagpur lecture tubular heat exchanger. Apr 19, 2012 introduction a heat exchanger is a device in which two fluid streams, one hot and another cold, are brought into thermal contact in order to effect transfer of heat from the hot fluid stream to the cold. The basic principles of plate fin heat exchanger manufacture are the same for all sizes and all materials.
Now we will try to go in details about this shell and tube heat exchangers. Heat integration is performed in central heatexchanger networks hens, where hot and cold process streams from the basic process subsystems bps are sent to the hen, from where they reach their required thermal final states and are then sent back to the bps or outside the system as products, byproducts, or waste. Pdf handout that help students for design of heat exchangers based on kerns method find, read and cite all the research you need on researchgate. The ratio of fin surface area to tube outside bare area is 1520. 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. A heat exchanger is a device that is used to transfer thermal energy enthalpy between two or more fluids, between a solid surface and a fluid, or between solid particulates and a fluid, at different temperatures and in thermal contact. Nptel chemical engineering chemical engineering design ii joint initiative of iits and iisc funded by mhrd page 2 of 21 lecture 1. The corrugations, sidebars, parting sheets and cap sheets are held together in a jig under a predefined load, placed in a furnace and brazed to form the plate fin heat exchanger block. Heat exchangers may be classified according to transfer process, construction, flow arrange ment, surface compactness, number of fluids and heat transfer mechanisms as shown in fig. The hot and cold fluids alternate between each of the plates.
Simple or composite wall of some kind divides the two. The pinch design method for heat exchanger networks by b. In parallel flow heat exchangers, the two mediums enter the exchanger at the same end, and travel in parallel to one. Isbn 9789535102786, pdf isbn 9789535161455, published 20120309. Heat exchanger network analysis by pinch technique prof. Introduction a heat exchanger is a device in which two fluid streams, one hot and another cold, are brought into thermal contact in order to effect transfer of heat from the hot fluid stream to the cold. Details of heat exchanger mechanical design, fabrication, and construction are not wellcovered in this book. Heat exchangers design parameters for psus interviews by. Since all heat exchangers considered in this experiment have a single pass for both the hot and cold fluids, the discussion below is limited to singlepass heat exchangers. 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.
Lewin heat exchanger design shellandtube heat exchangers these movies demonstrate the flow of process fluids in a typical shellandtube heat exchanger setup. Lewin heat exchanger design shellandtube heat exchangers heuristic 55. Indranil ghosh iit kharagpur july 2018 lecture 32 20. Shell shell is the container for the shell fluid and the tube bundle is placed inside the shell. Heat exchangers fundamentals and design analysis prof. But nowadays numbers of industries are searching for effective and less time consuming alternatives of designing of shellandtube heat exchangers. Heat transfer equipment may be designated by type or function it performs, such as chiller, condenser, cooler reboiler, etc. Handout that help students for design of heat exchangers based on kerns method. Mod07 lec29 various types of shell and tube heat exchangers. Combining each of these resistances in series gives. Fundamentals and design analysis heat exchanger network analysis by pinch technique prof. Iits and iiscs free open online web and video courses for science and engineering under nptel similar websites like nptel.
Heat exchangers heat exchangers are used to transfer heat between two sources. Heat exchangers basics design applications intechopen. Otherwise, it is convenient to design separate desuperheater and subcooling exchangers. Heat transfer of a multiple helical coil heat exchanger using a microencapsulated phase change material slurry. Calculate the required heat transfer area based on values needed. Lewin heat exchanger design finfan heat exchangers see also. Design features flow arrangements heat transfer mechanisms. Heat exchanger design tubular heat exchangers hrsstep 4. An excellent, advanced textbook on the thermohydraulic design and performance rating of heat exchangers.
Download the excel spreadsheet templates in this article to make preliminary heat exchanger design calculations. Shell diameter should be selected in such a way to give a. Nptel provides elearning through online web and video courses various streams. Sand production line is a kind of special equipment for production of building sand and stone. View notes mod1 from ech 143 at hanoi university of mining and geology. It provides relatively large area of heat transfer for a given volume of the equipment. The most common application of heat transfer is in designing of heat transfer. The noncondensable gas decreases the heat transfer rate. Condenser usually use a wider baffle spacing of bd s. Heat exchanger basics pdf keyword found websites listing.
The present study has focused on the use of coil heat exchangers ches with microencapsulated. The structural rigidity and satisfactory service of. Reason for heat exchangers a heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another hot and cold fluid. Shellandtube heat exchangers are the most widely used heat exchangers in process industries because of their relatively simple manufacturing and their adaptability to different operating conditions. We are trying to solve the numerical problem related to. Read online process design of heat exchanger nptel book pdf free download link book now. John richard thome ltcm sgm epfl heat transfer heat exchanger design 1er. Design charts for plateandframe exchangers when it comes to compact heattransfer technology, engineers often find themselves at the mercy of the equipment manufacturers. Gaitonde, department of mechanical engineering, iit bombay.
A condenser must have a vent for removal of noncondensable gas. Indranil ghosh department of mechanical engineering indian institute of technology, kharagpur lecture 54 design and simulation of regenerator fixed bed you are welcome to this lecture. Mechanical design standards of shell and tube heat exchangers mechanical design of heat exchangers includes design of various pressure and nonpressure parts. Background, application, classification, common terminologies. They will also calculate the number of tubes needed for a shell and tube heat exchanger and to calculate the pipe length needed for a double pipe heat exchanger. Nocheat transfer and combustion in multiphase systems.
Indranil ghosh cryogenic engineering center indian institute of technology, kharagpur lecture 12 tubular heat exchanger. A heat exchanger is a device that is used to transfer thermal energy enthalpy. In this chapter we will examine the basic theory of heat exchangers and consider many applications. Heat transfer nptel online videos, courses iit video. On standard heat exchangers, there is a 34 or 1 inch female npt drain. All books are in clear copy here, and all files are secure so dont worry about it. Aloke kumar ghosal, department of chemical engineering, iit guwahati. Pdhonline course m371 2 pdh shell and tube heat exchangers.
Today, we are going to talk about the design and simulation of regenerator. There are many types of heat exchangers applied in the process industry. Heat exchanger design pdf nptel tollersofredheadangels. With multiple tubes it is possible to arrange to flow so that. Nptel online videos, courses iit video lectures well organized. Heat exchangers 73 individual thermal resistances of the system. Heat exchangers are extensively used in diverse industries covering.
Sand making line is also known as sand production line, sand making production line or sand production plant. Indranil ghosh iit kharagpur heat exchangers are extensively used in diverse industries covering power generation, refrigeration and air conditioning, cryogenics, oil refineries and chemical processes, automobiles and other transport devices. A heat exchanger is a device that is used to transfer thermal energy enthalpy between. Qualitative dependence of the fluid temperature on position inside a singlepass heat exchanger is shown in fig.
For example, limited literature correlations are available to help in the preliminary design of plateandframe heat exchangers. Fundamentals and design analysis usb media storage type. Nptel chemical engineering chemical engineering design ii joint initiative of iits and iisc funded by mhrd page 2 of 41 lecture 1. Nocheat exchangers fundamentals and design analysis. Heat exchangers doehdbk1018193 types of heat exchangers. A plate type heat exchanger, as illustrated in figure 2, consists of plates instead of tubes to separate the hot and cold fluids. Design considerations for compact heat exchangers david southall, renaud le pierres, and stephen john dewson heatric division of meggitt uk ltd. Dec 10, 2008 lecture series on heat and mass transfer by prof. Shell and tube welcome to this lecture tubular heat exchanger. 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. Introduction to thermal and hydraulic aspects, pressure drop and heat transfer, sizing and rating.