Design of shell and tube heat exchanger pdf

Setting shell side and tube side pressure drop design limits. To make the most of exchanger design software, one needs to understand sthe classi. The analysis is extended using the above kern method with different fluid combinations such as carbondioxide on the tube side steam on. Design and fabrication of shell and tube heat exchanger. Shell and tube heat exchanger design software for thermal. Pdf the exchange of heat is one of the most important processes in the chemical industry.

As its name implies, this type of heat exchanger consists of a shell a large pressure vessel with a bundle of tubes inside it. Effectively design shell and tube heat exchangers rajiv mukherjee, engineers india ltd. However, not every element described herein will be involved in the design of every shell and tube heat exchanger. As older facilities are upgraded or newly designed facilities are built, large plate type heat exchangers are replacing tube and shell heat exchangers and becoming more common. A novel heat exchanger design method using a delayed. Pdhonline course m371 2 pdh shell and tube heat exchangers. Heat exchanger design an overview sciencedirect topics. Process fluid assignments to shell side or tube side. 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 optimum thermal design of a shell and tube heat exchanger involves the consideration of many interacting design parameters which can be summarised as. The exchangers exhibit more than 65% of the market share with a variety of design experiences of about 100 years. Shell and tube heat exchanger design free download for. 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. The analysis is extended using the above kern method with different fluid.

Pdf design of shell and tube heat exchanger with double passes. Since the fluid flows continuously in one single channel the force of the fluid acts against. Assume tube diameter and bwg, assume tube length, l 2. Define the duty q from mass flow rate, inlet temperature, outlet temperature, and heat capacity. It is a fully welded construction with a bellow on shell tube to absorb thermal expansion. The design methods of the parts that could be included in a shell and tube heat exchanger will be described in the following chapters of this document. Oct 07, 2012 plate heat exchanger, how it works working principle hvac industrial engineering phx heat transfer duration. Almost alway s, the tube passes will be in multiples of two 12, 14, 24, etc.

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. Design of shellandtube heat exchangers pdf free download. All trademarks, registered trademarks, product names and company names or logos mentioned herein are the property of their respective owners. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interacting design parameters which can be summarised as follows. How to design a tubular heat exchanger hrs heat exchangers.

The locations of the nozzles and the orientation of the. How to design a tubular heat exchanger at hrs heat exchangers we design tubular heat exchangers every day. 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 exchanger design is a product developed by webbusterz engineering software.

Bahirdar university institute of thechnology smie thermal page iii design of shell and tube heat exchanger nomenclature. May 28, 2017 this figure shows you general stepbystep method of design of shell and tube heat exchanger. Fluid engine oil sea water inlet temperature, c 65 20 outlet temperature, c 55 25 heat load, kw 117. E1mnl032a design and rating of shell and tube heat. Analyzing the application when we first receive an inquiry for a heat exchanger, the first step is to analyze the application. Here is an example of a 12 1 shell pass and 2 tube passes heat exchanger.

Viscoline monotube modules are normally connected in series and. However, new improvements in gasket design and overall heat exchanger design have allowed some large scale applications of the plate type heat exchanger. The chosen heat exchanger flow pattern is also needed in order to calculate the log mean temperature. Shell and tube heat exchangers basic calculations pdh online. A shell and tube heat exchanger is a class of heat exchanger designs. I usually calculate for both shell side and tube side just to ensure that the duty is. 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. May 03, 2019 shellandtube type heat exchanger having a 0, b 30, and c 60 baffle angles.

There are three different classifications of shell and tube heat exchangers such as parallel flow, cross flow and countercurrent flow. Pdf heat exchanger design handbook matt pennington. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interacting design parameters which can be summarized as. Inside the shell, baffles are typically installed which help in holding the tubes and directing the shell fluid flow to some extent. A shell and tube heat exchanger is an indirect contact heat exchanger in which the hot and cold fluid streams do not come in direct contact but the heat transfer occurs through a dividing wall. Pdf design of shell and tube heat exchanger single phase. Most shellandtube heat exchangers have multiple passes to enhance the heat transfer. The combined effect of all these correction factors for a welldesigned shellandtube heat exchanger is of the order of 0. 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. 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. Thanks to this probability distribution, an uncertainty analysis was also performed to find the quality of. Odd numbers of tube passes have more complicated mechanical stresses, etc.

Types of heat exchanger, process design of shell and tube heat exchanger, condenser, and reboilers. An exchanger with one shell pass and two tube passes is a 12 exchanger. 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. 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 common focus of the publication is to predict the variation of lmtd, heat transfer coefficient, nusselt number, and pressure drop with a change in values of reynolds number for 0, 30, and 60 baffles situated in the heat exchanger as shown in figure 1. The determination of the optimum heat exchanger design for a specific, well defined application can be regarded as a two stage process. Unlike other tools, ensures that the calculations are performed step by step to help in understanding the design calculations. 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. Shell and tube heat exchanger design linkedin slideshare. For a shellandtube exchanger, an inline arrangement is considered with. Shellside flow area varies across the bundle diameter with the different number of tube clearances in each longitudinal row of tubes. The product medium flows inside this tube, and the service medium around it.

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. Design, analysis and fabrication of shell and tube heat exchanger. A followup arti cle on advanced topics in shellandtube heat exchanger design, such as allocation of shellside and tubeside fluids, use of multiple shells. Therein, popular analytical techniques such as log. Effectively design shellandtube heat exchangers rajiv mukherjee, engineers india ltd. Pdf design of shell and tube heat exchanger single. Design a double pipe heat exchanger with bare inner multitubes that can be used to cool engine oil with cold sea water. The designed spiral tube heat exchanger is required to be developed and experiments will be performed on it to analyses pressure drop and temperature change in hot and cold fluid on shell side and tube side. 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.