Shell And Tube Heat Exchanger Design Calculation Excel

There can be many variations on the shell and tube design. Exchanger Optimizer Design software for shell-and-tube and air-cooled heat exchangers. The "open" shell type cooler (heat exchangers) is designed for process pipe and flange connection. Insufficient Thermal Rating 4. Heat exchanger effectiveness calculations and results are also presented. HEAT EXCHANGERS. St andard shell diameters typically range from 2” to 6”. Shell and tube flooded evaporator (R134a) 155. This proven fixed tubesheet shell and tube heat exchanger offers the cost effectiveness that comes with having a highly standardized design, while easily providing various options to meet specific customer requirements. " We're the largest U. All trademarks, registered trademarks, product names and company names or logos mentioned herein are the property of their respective owners. Design A Shell & Tube Heat Exchanger On Ms Excel - posted in Process Heat Transfer: 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. This site is not directly affiliated with Webbusterz Engineering Software. Air Cooled Heat Exchanger Design Allows to size air cooled heat exchangers with the ability to do thermal design calculations for horizontal induced draft and forced draft operation modes. The material of construction of fin tubes is SA179, stainless steel, copper and as per customers specific requirements. Air cooler evaporator (NH 3) 169. tions is the shell-and-tubeheat exchanger, shown in Fig. Tube vibration in the condenser can cause serious tube damage when increased steam flows are introduced or when retubing with thinner wall tubes or those with low Modulus of Elasticity. Kannadasan 1,Chemical Engineering Department, M. The size of the latest installer available is 8. Shell-and-tube heat exchangers contain a large number of tubes (sometimes several hundred) packed in a shell with their axes parallel to that of the shell. Design and Experimental Analysis of Spiral Tube Heat Exchanger 38 Fig. 80 m in height, 3. Correction Factor for Shell and Tube Heat Exchanger and tube heat exchanger (1 shell 2 tube Tubular Exchanger Manufacturers Association TEMA E). A good run down on vessel design can be found in Rules of Thumb for Chemical Engineers 3rd Edition, 2002 and Perry’s Chemical Engineers Handbook McGraw-Hill 8th Edition, 2008. Heat Exchangers. E2G|The Equity Engineering Group Inc. John Richard Thome (LTCM - SGM - EPFL) Heat transfer - Heat Exchanger Design 1er mars 2008 6 / 41. HEAT TRANSFER Mechanisms of Heat Transfer: (1) Conduction where Q is the amount of heat, Btu, transferred in time t, h k is the thermal conductivity, Btu/[h ft2 (oF/ft)] A is the area of heat transfer normal to heat flow, ft2 T is the temperature, oF x is the thickness of the conduction path, ft. Shell & tube heat exchangers consist of a series of tubes. Designs are to ASME, CNR, API, TEMA and other exchangers and pressure vessel standard code drawings which are developed in-house with Auto-CAD. An excel program has been developed for the ease of calculation and obtaining result after changing different parameters. Plate and Frame Heat Exchangers that are an ideal choice for chemical, pharmaceutical, HVAC and food industries. is a global leader in the design and manufacture of a wide range of specialty heat exchangers and heat transfer solutions. Emmegi Heat Exchangers is an international company with manufacturing facilities and sales offices providing industrial cooling solutions world wide. A BAHX is typically 20% the size of a shell and tube exchanger of comparable performance. The effective tube area is that portion within the shell exposed to the shell side fluid. Double-pipe heat exchangers use a single pipe within a pipe design and are commonly used for high fouling services such as slurries, where abrasive materials are present, and for smaller duties. • Self-cleaning design • High thermal efficiency. They used Bell–Delaware correlations [8] to properly calculate heat transfer. FREE Shipping by Amazon. + Select from different correlations to calculate shell or tube heat transfer coefficient or simply enter the coefficients (database of some common coefficients included) + Ability to import properties to Shell/Tube sides form Ms Excel very useful if you. Galvanized Iron sheets were used as the heat transfer surfaces. 3 Regenerator Pressure Drop 392 6. Vessel Volume. Due to the turbulent flow of the fluid in the channels, the heat transfer coefficients of our brazed plate heat exchangers are 3-5 times higher than that of a conventional shell & tube heat exchanger for a similar application. 9-13 Net cross flow area, sq. All heat exchangers do the same job—passing heat from one fluid to another—but they work in many different ways. About Exchanger Industries Limited. : Hot side - Liquid properties Temperature Liquid specific heat. Data Collection; Calculations and Analysis; Output and Reports. For finding out design pressure of the system designer need to study the location of the exchanger in the process design. How gasketed plate heat exchangers work In a gasketed plate heat exchanger, the plates are fitted with elastomeric gaskets which seal the channels and direct the fluids into alternate channels. 60TFD-HE13 - Shell & Tube Heat Exchager Design 47 48. Selection of heat transfer models and fouling coefficients for shell side and tube side. § This factor is equal to 1. The maximum allowable Flow Rate through the tubes is 6100 GPM. 05 Shell and Tube Heat Exchanger Design Calculations. 4 from our software library for free. What is the total amount of heat transferred? ©Faith A. Rugged Construction: The brazed plate heat exchanger is brazed using 99. Metal Tapered Tube Plugs offer a low-cost and quick method of sealing leaking tubes. The software unlike other tools, ensures that the calculations are performed step by step to help in understanding the calculations. Multitool Spreadsheet. Production and supply of every type of nut and pin. This calculation is based on the Gardner's theory (1948-1952), also considered in Appendix A of the TEMA standards (previously generally used in tubesheet calculations): however Clause UHX of ASME VIII division 1 also contains a series of additions and. These parameters should verify the principle of conservation of energy. Our Heat Exchangers are available as catalog products or designed per your special request. Evaluation of Heat Exchangers after accidental over-pressurization. 35 Floating Head 1. 1 Number of tubes (N ):; 1. Shell and Tube Heat Exchangers: Calculations. txt) or read online for free. Introduction Saving material and energy are common objectives for optimization. Heat Exchanger Tube Pitch. 3 Two kinds of shell-and-tube heat exchangers. 7 Btu/hft2oF ft2 Then the required transfer A = 63 Number of tubes required = 239 Reset tubes/pass (Step 3), then no. plugging, or lowered heat transfer due to steam superheat, or the presence of non-condensables in the steam, leaving reduced heat transfer on the tube side as the strongest suspect. Exiting gas leaving the control volume may experience a pressure drop when returning to atmospheric pressure. C200/C210 - TEMA type AEL/BEM or NEN fixed tubesheet shell & tube heat exchanger C300 - TEMA type AEU or BEU, removable U-tube bundle shell & tube heat exchanger C400 - TEMA type AET or BET, removable bundle, internal bolted floating head cover shell & tube heat exchanger. Page 1: Tube Plugging in Shell and Tube Heat Exchang-ers Stainless Prices are mixed and Nickel prices are down for May. 1 = cold fluid temperature, (OR Tube) inlet, t. The mechanical design of a shell and tube heat exchanger provides information on items such as shell thickness, flange thickness, etc. To access the working calculator, please sign up for free membership trial. From simple shell & tube heat exchangers, to sophisticated, precision-engineered custom heat exchangers, compact brazed plate or gasketed plate & frame units - packaged steam condensers to air cooled exchangers, ITT Standard has whatever it takes to meet your heat transfer requirements. Counter Flow Heat Exchanger The diagram above shows a Shell and Tube Heat Exchanger. Production and supply of every type of nut and pin. In this paper, the axial elongation of vertical shell and tube heat exchanger with expansion joint are studied based on thetheories of static mechanics. Heat exchanger with concentric triple-tube. Because most heat exchanger headers need to be removable for maintenance, a bolted and gasketed joint is used to facilitate disassembly. heat 1900 J/kg. The tube sheets are directly welded to the manifold. Typically, the ends of each tube are connected to plenums (sometimes called water boxes) through holes in tubesheets. Heat Exchanger (Shell-Tube), A. Heat Exchanger Cost Estimate - An interactive JavaScript equipment capital cost estimating aid (order-of-magnitude). SHELL AND TUBE HEAT EXCHANGER DESIGN CALCULATIONS John. Let's try to map out a heat exchanger design strategy. A shell-and-tube exchanger ( Figure 3. Effectively Design Shell-and-Tube Heat Exchangers Rajiv Mukherjee, Engineers India Ltd. Thermaline's double-tube, triple-tube, and multi-tube heat are widely used in the processing industry to process fluids with particulates, fibers and high viscosities. 7 Btu/hft2oF ft2 Then the required transfer A = 63 Number of tubes required = 239 Reset tubes/pass (Step 3), then no. Different types of tube-to-tubesheet joints are explained and typical applications for shell-and-tube heat exchangers are listed. Heat Exchanger Design Handbook SECOND EDITION KuppanThulukkanam CRCPress Taylor&Francis Group Boca Raton London NewYork CRCPress is an imprintof the Taylor &FrancisCroup, an informabusiness. API Heat Transfer Inc. Construction Parameters of Tubular Juice heater: 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. Is there a phase change involved? The thought process involved is just as important as the calculations involved. The second function is effectiveness. The heat transfer inside of process fluids is done by the convection mechanism, and in metallic surface, it is done by the conduction mechanism. Keywords: Heat Transfer Coefficient, Helical Baffle, Segmental Baffle, Shell and Tube Heat Exchanger, FLUENT ANSYS. The heat flow in a heat exchanger for the shell and tube type is as in Equation (4) Q U. This compactness is achievable through higher surface densities (i. process and heat exchanger design. A sketch of the overall experimental apparatus is shown in Fig. 0 Fundamentals. Supporting –269°C a temperature range between –269°C and +650°C, they can handle much larger temperature and pressure differences than other heat exchanger types. Out unique design and the shape of the coil itself account for over 20% of its superior performance. For a heat exchanger thermal design calculations spreadsheet, the heat exchanger equation can be used to calculate the required heat exchanger area for known or estimated values of the other three parameters, Q, U, and ΔT lm. Specification of tube parameters - size, layout, pitch. The geometry of this experimental apparatus is shown in Figures 1-2. Copy the appropriate file into the C:\Add-ins folder then activate the add-in from Excel. 1 INTRODUCTION The thermal design of heat exchangers is directed to calculate an adequate surface area to handle the thermal duty for the given specifications whereas the hydraulic analysis determines the pressure drop of the fluids flowing in the. Here attached is a Spreadsheet to Design a Shell & Tube Heat Exchanger with minimum number of inputs and most of the work being done by the spreadsheet itself. Above pressure drops (tube and shell) are within allowable limits. TML (4) The values for Factor F are obtained in function of the S and R dimensionless ratios, calculated by Equation (5). To identify the cause of excessive noise and vibra-tion, the rotational speed of the fan is varied from 450 to 750. Shell and tube heat exchangers in various configurations are probably the most widespread and commonly used basic heat exchanger configuration in the process industries. Shell-and-tube. Steam is put in Shell side and cool water in Tube side. heat exchanger geometry that meets the heat duty re- quirement and a given set of design constrains. Step by step shell and tube heat exchanger design and analysis software. - enter two of the three shaded portions for Hot. 2 Examples a. The report covers the stages of new STHE design, pressure relief system design, instrumentation and relief device selection as well as the reassessment of existing heat exchangers. In addition to affecting flow, the geometry of the exchanger is necessary to calculate the heat transfer area. Due to the design of the shell and tube heat exchanger, it offers a large heat transfer area and provides high heat transfer efficiency in comparison with others [2]. Heat exchanger effectiveness calculations and results are also presented. The actual cost of a piece of equipment depend upon many factors. The original shell side design parameters were 100 psig @150 °F and the original tube side design parameters were 50 psig @ 225 °F. Hope you find it useful. Heat Transfer HEAT EXCHANGERS Figure 10 Heat Exchanger Temperature Profiles The design of a parallel flow heat exchanger is advantageous when two fluids are required to be brought to nearly the same temperature. Lee's book, Thermal Design) and are commonly found in oil refineries, nuclear power plants, and other large-scale chemical processes. Lewin Heat Exchanger Design Shell-and-Tube Heat Exchangers Heuristic 55: The tube side is for corrosive, fouling, scaling,. In designing the heat exchanger, I put superheated steam 200C - saturated steam 100C to heat Water from 25C to 60C. Shell and Tube Heat Exchanger Design 1. Baffles are placed in shell and tube heat exchanger such that they can give direction to the fluid flow. 2Z?, is the workhorse of the process industries, providing economical rugged construction and a wide range of capabilities. Morrison, Michigan Tech U. Select the type of heat exchanger. Plate heat exchanger calculation method. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interact-ing design parameters which can be summarized as follows: Process: 1. It can be used standalone by the thermal specialist for exchanger design or as an. Shell and Tube Exchanger Data Sheet - Excel Sheet and PDF Form Process specification sheet for the design of a shell and tube heat exchanger unit (created Aug. Vessel Volume. Download Heat Exchanger Calculation Software Advertisement Double Pipe Heat Exchanger Design (DHex) v. Quick Links Design Hot Water Set Design Shell and Tube Request for Quote Resources Documents Picture Gallery Video Gallery 1(800)767-6720 • (253)833-7118 • Contact us 1531 14th St NW, Auburn, WA 98001 U. 2 Double Pipe Heat Exchanger 1. Edwards of P & I Design Ltd, Teesside, UK. Pump CALCULATIONS, Flow rate, RPM, Pressure. S&THex is a software tool that is made to demonstrate the chemical design & rating calculations of Shell & Tube Heat Exchangers. For additional questions on Double Tubesheet Shell and Tube Heat Exchangers, please contact us: 1-888-226-8522. 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. Design of shell and tube heat exchanger - layout design. Heat transfer takes place as one fluid flows inside the tubes while the other fluid flows outside the tubes through the shell. When BTU requirement is known (most applications): - enter the BTU requirement. As described hereinafter, the process discipline usually performs the thermal design of shell and tube (S&T) heat exchangers. 3 The final required tube plate diameter. Due to the turbulent flow of the fluid in the channels, the heat transfer coefficients of our brazed plate heat exchangers are 3-5 times higher than that of a conventional shell & tube heat exchanger for a similar application. Log Mean Temperature Difference (LMTD) Calculation for a Shell and Tube Exchanger for counter-current, co-current flow CheCalc Chemical engineering calculations to assist process, plant operation and maintenance engineers. Because this is so many, I think I will divide the topic into three topics: General design consideration; Construction detail in tube side; Construction detail in shell side; My fire water pump calculation post series will be postponed due to these topics. The report covers the stages of new STHE design, pressure relief system design, instrumentation and relief device selection as well as the reassessment of existing heat exchangers. Background. They are used to boil water recycled from a surface condenser into steam to drive a turbine to produce power. Based on the energy conservation and the mass balance, a mathematical simulation for the transient heat exchange of a shell-tube heat exchanger is established, and a model for optimization of the heat exchanger design is proposed in which the objective function is the total entropy generation rate (TEGR), with consideration giving to. Intended for use with high fluid flows and low temperature variances, these robust, compact heat exchangers are ideal for many residential and industrial applications. Three types of tube inserts are available depending on customer's needs. Shell And Tube Heat Exchanger. Choose from brazed plate, shell and tube, double wall brazed plate and plate and frame types. Domanski (1991) presented a discretization model based on a tube-by-tube approach. The software is categorized as Photo & Graphics Tools. 80 m in height, 3. Read on for information about the use of an Excel spreadsheet for preliminary heat exchanger design calculations. Scribd is the world's largest social reading and publishing site. In the analysis of heat exchangers, it is often convenient to work with an overall heat transfer coefficient, known as a U-factor. 3 Two kinds of shell-and-tube heat exchangers. This site is not directly affiliated with Webbusterz Engineering Software. When to use for Hairpin Heat Exchangers. WCR manufactures plates at their Washington Courthouse, Ohio pressing facility. Setting shell side and tube side pressure drop design limits. Leaving Temp. must be used with the equation. The software will do all the thermal calculations involved in the design and will generate a summary of all. That second fluid runs over the tubes that being heated / cooled so that it can either provide the heat or absorb the heat required. However, any shell and tube exchanger may be equipped with a double-tubesheet design. Aspen Exchanger Design and Rating Shell & Tube Mech V8. Based on the energy conservation and the mass balance, a mathematical simulation for the transient heat exchange of a shell-tube heat exchanger is established, and a model for optimization of the heat exchanger design is proposed in which the objective function is the total entropy generation rate (TEGR), with consideration giving to. 8 When calculating the effective surface area of the heat exchanger, the tube length within the thickness of the tubesheet shall be excluded. 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 thermal design of a shell and tube exchanger is an iterative process which is normally carried out using computer programs from organizations such as the Heat transfer and Fluid Flow Service (HTFS) or Heat Transfer Research Incorporated (HTRI). Very easy to use and user friendly. Heat Exchanger Design in Excel Spreadsheet. API Heat Transfer Inc. 2Z?, is the workhorse of the process industries, providing economical rugged construction and a wide range of capabilities. The heat flow in a heat exchanger for the shell and tube type is as in Equation (4) Q U. High pressure tubeside application. View Shell and Tube Heat Exchanger Research Papers on Academia. 4 Tube-Side Heat Transfer Coefficient The heat transfer coefficient for the tube-side is expressed as follows: (k 4. There are then a certain number of tubes per bank which form the core of the heat exchanger (not considering the circuiting). 1 - Field Work, Repair, Retube. View Notes - 1. Tube Side • 460 Nos x 25. The pages below show how RCSWin handles various aspects of the design process. According to flow layout, heat exchangers are grouped in: • Shell-and-tube heat exchanger (STHE), where one flow goes along a bunch of tubes and the other. Each of those parameters will be discussed briefly in the next three sections. 55 Fixed tube sheet 0. Advantages: The configuration gives a large surface area in a small. In this article, the performance and applications of a Spiral Plate Heat Exchanger are demonstrated. Lewin Heat Exchanger Design Shell-and-Tube Heat Exchangers Heuristic 55: The tube side is for corrosive, fouling, scaling,. Shell and tube heat exchangers are one of the most widely used type of heat exchanger in the processing industries (65% of the market according to H. Design_Basis. Shell tube heat exchanger Design codes of heat exchanger TEMA heat exchanger Mechanical design *You can't enter more than 5 tags. 35 Floating Head 1. That causes deformation of heat exchanger. A Fixed Tube Sheet heat exchanger is the most common type of heat exchanger in all Industries. The Number of Transfer Units (NTU) Method is used to calculate the rate of heat transfer in heat exchangers (especially counter current exchangers) when there is insufficient information to calculate the Log-Mean Temperature Difference (LMTD). - enter two of the three shaded portions for Hot. Also available as insert/immersion heat exchangers. The basic designs for heat exchangers are the shell-and-tube heat exchanger and the plate heat exchanger, although many other configurations have been developed. The basic component of a heat exchanger can be viewed as a tube with one fluid running through it and another fluid flowing by on the outside. 3 Responses to U Values for Heat Exchangers. These are commonly. One device uses four baffles in a baffle set. If you’ve taken any classes in heat exchange, you probably are familiar with the simplest heat exchanger design equation: Q (duty) = U (coefficient) * A (area) * deltaTlm * F Where deltaTlm and F depend on exchanger geometry and are explained in any heat transfer text. The tubes may be straight or bent in the shape of a U, called U-tubes. 5 kg/s of water from 15 to 85oC. In designing the heat exchanger, I put superheated steam 200C - saturated steam 100C to heat Water from 25C to 60C. sized tube and shell heat exchanger, is capable of transferring much more heat. Selected Base Values from Fig. Higher the thermal conductivity of the tube metallurgy higher the heat transfer rate will be achieved. Altex Industries designs and fabricates Shell and Tube Heat Exchangers to the latest ASME, API and TEMA codes. Because this is so many, I think I will divide the topic into three topics: General design consideration; Construction detail in tube side; Construction detail in shell side; My fire water pump calculation post series will be postponed due to these topics. This is indicated in figure 9. 6 barg) to medium pressure (7. Calculate the required heat transfer area based on values needed. Heat-Exchanger USA has over 20 years of experience designing and manufacturing shell and tube heat exchangers. 2 Double Pipe Heat Exchanger 1. Plate heat exchanger calculation method. Extension to other exchanger types requires new equations. Heat Exchanger Design in Excel Spreadsheet. 240 K to 300 K. The second fluid runs over the tubes that are being heated or cooled so that it can either provide the heat or absorb the heat required. Friedrich Frass Translated and Edited by Dipl. Calculate the length of the tube or heat exchanger. We produce customized solutions for the industries of the future. The thermal design of a shell and tube exchanger is an iterative process which is normally carried out using computer programs from organizations such as the Heat transfer and Fluid Flow Service (HTFS) or Heat Transfer Research Incorporated (HTRI). SHIVENDRA RASTOGI says:. The Number of Transfer Units (NTU) Method is used to calculate the rate of heat transfer in heat exchangers (especially counter current exchangers) when there is insufficient information to calculate the Log-Mean Temperature Difference (LMTD). Calculate Prandtle number. Based on the energy conservation and the mass balance, a mathematical simulation for the transient heat exchange of a shell-tube heat exchanger is established, and a model for optimization of the heat exchanger design is proposed in which the objective function is the total entropy generation rate (TEGR), with consideration giving to. Shell and Tube Multipass Heat Exchanger Design | Tubular juice heater design calculation with online calculator. com 1-877-542-1214 Preliminary Heat Exchanger Sizing This tool calculates the preliminary heat transfer area and utility requirements for shell and tube heat exchangers. U Dirty = 1/(1/U Clean + f shell + f tube) where, f shell & f tube are fouling factors for shell and tube side. John Richard Thome (LTCM - SGM - EPFL) Heat transfer - Heat Exchanger Design 1er mars 2008 6 / 41. Integration with Exchanger Optimizer™ provides embedded costing features, which include fabrication, installation, and operational estimates for design cases. The shell and tube heat exchanger design soft-ware is developed for use in the teaching of thermal and hydraulic design of shell and tube heat exchan-gers usually at the senior undergraduate level of a mechanical or chemical engineering course. For finding out design pressure of the system designer need to study the location of the exchanger in the process design. the type of heat exchanger used: tubular, plate, corrugated tube). Fitness for service evaluation was performed for a fixed tubesheet heat exchanger with flanged and flued expansion joint. Below are some of the tools and information we use on a routine basis: Determines the preliminary size for a shell and tube heat exchanger based on the process information provided. Tube holes cannot be drilled very close together, since this may structually weaken the tube sheet. Correction Factor for Shell and Tube Heat Exchanger and tube heat exchanger (1 shell 2 tube Tubular Exchanger Manufacturers Association TEMA E). Fouling tends to degrade the performance of heat exchangers by decreasing the heat transfer coefficient and increasing the air-side pressure drop across the heat exchangers. Third file is a test script that shows an example of using this function. 5μm) Ra, available with single tubesheet or double tubesheet to eliminate risk of cross-contamination. Design A Shell & Tube Heat Exchanger On Ms Excel - posted in Process Heat Transfer: 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. Multi/mono tube. Dish Heads Volume. The shell and tube heat exchanger in the photo above has about twelve times the efficiency than a hypothetical single-tube heat exchanger of the same size. This is a sample of the Heat Exchanger Sizing Calculator. All hairpin heat exchangers are designed and fabricated to ASME and TEMA standards and client specifications. A U-tube shell and tube heat exchanger is a popular deterrent for the potential damages of thermal expansion because the side of the tubes with the U-bend is expected to absorb the heat that leads to swelling, thus saving the fixed side from the stress. Log Mean Temperature Difference (LMTD) Calculation for a Shell and Tube Exchanger for counter-current, co-current flow CheCalc Chemical engineering calculations to assist process, plant operation and maintenance engineers. hr periodically updates software information of Shell and Tube Heat Exchanger Design from the software publisher (WeBBusterZ Engineering Software), but some information may be slightly out-of-date or incorrect. Mechanical: 1. Principles of Finned-Tube Heat Exchanger Design for Enhanced Heat Transfer - 2nd Edition by Dipl. We'll do so with a series of questions followed by information to help you answer the questions. Shell and Tube Heat Exchanger Design 3. The tube sheet configuration in a multi-pass shell and tube design must have provisions for the pass ribs, requiring either removal of tubes to allow a low cost straight pass rib or alternately a pass rib with curves around the tubes adding cost to the manufacture. Exergy's Sanitary Shell & Tube Heat Exchangers are designed to meet the high quality requirements and hygienic standards of the pharmaceutical industry with product contact surfaces with a maximum surface finish of 20μin (0. These values, typically 800 to 1200 Btu/-hr·ft2 oF (clean), result in very compact equipment. The Number of Transfer Units (NTU) Method is used to calculate the rate of heat transfer in heat exchangers (especially counter current exchangers) when there is insufficient information to calculate the Log-Mean Temperature Difference (LMTD). Calculate the shell equivalent diameter 18. The software is categorized as Photo & Graphics Tools. The sample to be cooled high flows through the tube side of the cooler, and the cooling fluid flows through the shell side. Below are some of the tools and information we use on a routine basis: Determines the preliminary size for a shell and tube heat exchanger based on the process information provided. Some of these points are covered in following checklist. It provides optimum heat transfer and flow conditions for a wide variety of fluids, with a built-in self-cleaning effect, while keeping the overall size of the unit to a minimum. Lee’s book, Thermal Design) and are commonly found in oil refineries, nuclear power plants, and other large-scale chemical processes. If you are working on. The sizing of a heat exchanger is well documented in literature. A U-tube shell and tube heat exchanger is a popular deterrent for the potential damages of thermal expansion because the side of the tubes with the U-bend is expected to absorb the heat that leads to swelling, thus saving the fixed side from the stress. SHELL AND TUBE HEAT EXCHANGER A Shell and tube heat exchanger is a class of heat exchanger. Flow rate of the fluid in gallons per minute through either the tube or the shell of the heat exchanger. TEMA Type E Heat Exchanger Design. Southern has been designing and building custom heat exchanger products since 1961. Nozzle Schedule. 5 kg/s through the tubes making 2 passes and enters the Shell at 110 C. To solve a thermal problem, we need to know several parameters. This company is established in the year of 1989. Thermal Rating for a Shell and Tube Heat Exchanger. Data Collection; Calculations and Analysis; Output and Reports. Based on the heat exchanger construction data a comparison is then done with the CHEMCAD calculation. txt) or read online for free. Simplified Heat Exchanger Design Calculations…. I already prepared simple. Design Data – Materials of construction, general mechanical design 4. 1201/b14877-6. Data Collection; Calculations and Analysis; Output and Reports. Efforts have been made to confirm the accurracy of all calculations. Instructions: 1. The heat transfer coefficient on the Nth tube row The heat transfer coefficient on the Nth tube row in the bundle h(N) is Kern (1958) concluded from his practice experience in designing condensers that the Jakob tube row expression was too conservative and that this resulted in condensers that were consistently over-surfaced. 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 topics––all while keeping the qualities that made the first edition a centerpiece of information for practicing engineers, research, engineers. Fouling thickness and thermal conductivity both contribute to the resistance. USEFUL FORMULA FOR HEAT CALCULATIONS. Multi/mono tube. This means your Pool or Spa heats up faster. com 86--18051568339. ISO 9001:2008 certified manufacturer of heat exchangers including brazed plate heat exchangers, coaxial coils, counterflow condensers, vented double wall desuperheaters, shell and tube heat exchangers, suction line heat exchangers and liquid to liquid heat exchangers for air-conditioning, refrigeration and hydronic applications. Read White Paper. Categories of heat exchangers such as Plate type/ Double pipe/ Cooling towers/ Air cooled exchangers. Shell and Tube Heat Exchanger. However, there is a disadvantage to smaller tubes – if the fluid in your application is very viscous or has particulates, it can foul up the tube and undermine the heat transfer process. In design calculation HTRI software is used to verify manually calculated result. The flow configuration is Concentric Tube Counter flow. • The shell is made from cast aluminium/bronze, finely machined to accept the tube bundle with no friction and accurate tolerances. This design solution offers you two calculation programs as apps - one for condensing, the other for evaporating. Setting shell side and tube side velocity limits. Kannadasan 1,Chemical Engineering Department, M. Shell diameter: 4000 mm Shell thickness : 25 mm Overall length : 20 m Tubesheet thickness : 400 mm Max pressure : 225 kg/cm 2 Heat transfer area : 1 m 2 to 2500 m 2 Max weight : 80 tonnes. 1 BASIC ISSUES OF HEAT EXCHANGER DESIGN Applications of heat exchangers present two distinct categories of design problems (Sarkomaa 1994): 1. ASME UHX+TEMA Heat Exchanger Software - adds ASME UHX, TEMA shell, tube mechanical design calculations, drawings, reports to COMPRESS, from Codeware ; CC-THERM - shell, tube heat exchanger application includes vertical, horizontal condensation, evaporation, column thermo siphons, from Chempute Software. A 350 hp fan blower insufflates an airflow through the heat exchanger. We have been working with Kam Hau, P. Southwest Thermal offers a broad array of sanitary heat exchangers that are either pre-engineered or custom fit to your application application. shell-and-tube heat exchangers fitted with plain tube. Fixed tube-sheet type heat exchanger features simple and compact structure, and low manufacturing cost for the same diameter shell, the biggest number caladria is available in tubular heat exchangers is widely. Shell and Tube Heat Exchanger Design free download. In the heat exchanger, the design will also be very important. 2 Printed: 01/07/2016 at 10:43:32 Company: Walter Tosto spa Location: Chieti Service of Unit: R Our Reference: Item No. - to evaluate a Model Number not shown in the calculator. 802 psi ft2 Actual. , 1000 times bigger is usually sufficient). Calculate Q and the outlet temperature using energy conservation 2. This is due to the larger area the plates provide over tubes. The heat exchanger was designed in order to produce various drying temperatures of 40, 50, 60 and 70. The second fluid flows over the tube in the shell side which can. See the picture to the left. An heat exchanger (shell and tube type. The Solution: UniSim Shell-Tube Exchanger Modeler UniSim Shell-Tube Exchanger Modeler is a member of the Honeywell UniSim Design Suite. This compactness is achievable through higher surface densities (i. In heat exchanger analysis, if the fluid inlet and outlet temperatures are specified or can be. Heat Exchangers. These are the shell outside diameter Ds, the outside diameter of a tube do, the pitch between the tubes pt, the ba e cut. (2) Convection h is the heat transfer coefficient, Btu/[h ft2oF]. • Self-cleaning design • High thermal efficiency. Record the result in the box provided on the Worksheet. This permits the shell to expand and contract. Heat Exchangers Heat exchangers take the energy from a hot stream and use it to heat a cooler stream. S&THex is a software tool that is made to demonstrate the chemical design & rating calculations of Shell & Tube Heat Exchangers. Shell and Tube Heat Exchanger Design; correlations to calculate shell or tube heat transfer coefficient or simply enter the coefficients (database of some common coefficients included) + Shell. For example, the TEMA-F shell design provides for a longitudinal flow plate to be installed inside the tube bundle assembly. HRS Heat Exchangers has its own specific formulas for use with corrugated tubes. 0 Advertisement + Step by step design and rating calculations. Heat Transfer. This video describes How much steam is required to raise temperature of water to a certain degree in a Heat Exchanger. Introduction 1 A Heat Exchanger is a device used for efficient heat transfer from one fluid to other fluid a typical heat exchanger is shell and tube heat exchanger. Shell and Tube Heat Exchanger Design (S&THex). Schematic:. Read More … Need Help Finding What You Need? We’re here to help you find the best cooler for your application. Heat-Exchanger USA designs and builds all its Heat Exchangers to ASME Section VIII, Division 1 requirements, as well as per TEMA B, C, & R standards. Benefits of the Compact Platelet Heat Exchanger. The original shell side design parameters were 100 psig @150 °F and the original tube side design parameters were 50 psig @ 225 °F. Setting shell side and tube side pressure drop design limits. xls), PDF File (. process and heat exchanger design. Shell and Tube Heat Exchangers from ElringKlinger Engineered Plastics are typically manufactured with one inner and one outer circuit and fabricated in a completely closed welded design. The plate pack is assembled between a frame plate and a pressure plate, and compressed by tightening bolts fitted between these plates. Design and Development of Shell and Tube Heat Exchanger for Harar Brewery Company …. The empirical correlations for air-side heat transfer and pressure drop of fin-tube heat exchangers can be found in section Air-Side Correlations and Other Calculations, and the fluid-side correlations can be found in Fluid Correlations and Other Calculations. The shell-side flow is uniform and parallel to the tubes. It provides hot and cold water to the heat exchangers and all the instruments needed to measure their performance. This paper provides a review on the fouling mechanism and its effect onto the performance of finned tube heat exchangers in HVAC systems. The pattern of flow through a shell and tube heat exchanger can have a number of different configuration options. The Armstrong Shell & Tube heat exchangers provide dependable, efficient heat transfer in various applications ranging from HVAC to industrial installations. One fluid flows through the tubes, and the other fluid flows through the shell, around the tubes. I'm faceing the same problem as you (did). heating - vapour Water heating - liquid Glycol Process Side E-101 cooling - vapour Refrigerant Process Description (choose from list) boiling. Excel's GOAL SEEK Excel's, "Goal Seek" adjusts one Input value to cause a Calculated formula cell to equal a given value. Shawabkeh and Ahmed Bellagi; Heat Exchanger Effectiveness Housam Binous and Ahmed Bellagi; Cubic Equation of State for the Compressibility Factor Housam Binous; Reactive Distillation Computations Including Heat Effects Housam Binous, Selmi Manel, Ines Wada, and Ahmed Bellagi. The shell diameter of heat exchanger is 250 mm and 2500 mm in length. Hexact - heat exchanger design software. The software is easy to use and can calculate unknown shell/tube side temperatures by iteration method. The software will do all the thermal calculations involved in the design and will generate a summary of all. Selection of heat transfer models and fouling coefficients for shell side and tube side. Different types of shell and tube designs are possible. This is a sample of the Heat Exchanger Sizing Calculator. Finally, future research direction is proposed based upon the present results. An overview of heat exchanger design problems, a summary of key issues to cover in the design process, and a design methodology of heat exchangers is presented in this chapter. The basic designs for heat exchangers are the shell-and-tube heat exchanger and the plate heat exchanger, although many other configurations have been developed. Baffle design and tolerances for heat exchangers are discussed in the standards of the Tubular Exchanger Manufacturers Association (TEMA). Cleaning heat exchanger plates with special chemicals. Then, using the heat exchanger design equation, Q = UAΔTlm, allows an initial calculation of the needed heat transfer area, and then choice of a preliminary configuration for the heat exchanger can be made (e. 0 out of 5 stars 3. Select the type of heat exchanger. Finite Element Analysis for heat exchangers or heat exchanger components. Calculate the required heat transfer area based on values needed. Shell and tube heat exchanger with small diameter hairpin tubes; either 1/2-pass or 1/4-pass standard configuration. This calculator will help determine which exchanger has enough heat transfer capacity for your system. Asking the Right Questions. The basic design calculation for any heat exchanger is the determination of heat transfer area. He also recommends using 20 BWG carbon-steel tubing with a pressure drop not exceeding 10 psig (0. Bare-tube evaporators, also called "the Prime surface coil, because their primary surface of the pipe, this is only the surface, used to transfer heat. 5 µ m) Ra, and can be improved to 15 µ in (0. Obtain the shell-side heat transfer coefficient Where jh is obtained from the chart bellow. It provides optimum heat transfer and flow conditions for a wide variety of fluids, with a built-in self-cleaning effect, while keeping the overall size of the unit to a minimum. Distinctive and Versatile Designs, Merged with Advanced Manufacturing Technologies. Setting shell side and tube side pressure drop design limits. TEMA Type E heat exchangers are the basis of many other designs. expansion due to hairpin design, fins, and high pressure on the tube side - easy to install and clean. Heat Transfer HEAT EXCHANGERS Figure 10 Heat Exchanger Temperature Profiles The design of a parallel flow heat exchanger is advantageous when two fluids are required to be brought to nearly the same temperature. 2 Printed: 01/07/2016 at 10:43:32 Company: Walter Tosto spa Location: Chieti Service of Unit: R Our Reference: Item No. Large heat transfer surface area: the heat transfer surface area of compact heat exchangers can reach 1000m2/m3, which is twice as large as that of shell and tube heat exchangers. All shell ports are machined by CNC equipment to provide the highest degree of accuracy. Shell and tube heat exchanger design. Third file is a test script that shows an example of using this function. (ii) to carry out test on the concentric- tube heat exchanger and obtain values which will be compared to theoretically determined ones. The material of construction of fin tubes is SA179, stainless steel, copper and as per customers specific requirements. However, that doesn't mean this is an infallible strategy, Mechanical Design of Heat. Exchanger Industries Limited. However, any shell and tube exchanger may be equipped with a double-tubesheet design. Now we will try to go in details about this shell and tube heat exchangers. HEAT LOAD FORMULA: Heat load on the water side of a shell and tube heat exchanger: BTU per hour = GPM x 500 x T. SULPHURIC ACID AND WATER AS MEDIA IN SHELL AND TUBE HEAT EXCHANGER. Design and Experimental Analysis of Spiral Tube Heat Exchanger 38 Fig. Flow rate of the fluid in gallons per minute through either the tube or the shell of the heat exchanger. 2 Heat Exchanger Physical Model The shell and tube design is one of the simplest and popular HX types, which can be found in most process plants. For a heat exchanger thermal design calculations spreadsheet, the heat exchanger equation can be used to calculate the required heat exchanger area for known or estimated values of the other three parameters, Q, U, and δT lm. 89 kJ/kg K, and the average heat capacity of water over the temperature range of interest is 4. Convective heat transfer from the outer tube wall to the outside fluid. Heat Exchangers are available in many types of construction, each with its advantages and limitations. The tube sheets are directly welded to the manifold. The coolant in radiator coils in an internal combustion engine is one example of a heat exchanger. Browse Model # 00677-10, Shell & Tube Heat Exchanger in the Exergy, LLC catalog including Model #,Item Name,Series,Material,Shell Diameter,Tube Count,Tube Length,Tube Outer Diameter,Tube Side Fitting,Shell Side Fitting,Dimension A,Dimension B,Weight. • Uses the Ultra engine for calculating designs. Heat Exchangers. ASME Section 8 Pressure Vessel and Heat Exchanger Software. 80 m in height, 3. 1 - Field Work, Repair, Retube. Sanitary Shell & Tube Heat Exchangers. 2 Tube-Fin Heat Exchangers 391 6. Reference: Frank P. RECENT UPDATES. , 1000 times bigger is usually sufficient). Ethylene glycol is available at 350 K. These are the shell outside diameter Ds, the outside diameter of a tube do, the pitch between the tubes pt, the ba e cut. Shell & Tube Shell and tube heat exchangers are the most widely used type of heat exchanger. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interact-ing design parameters which can be summarized as follows: Process: 1. before applying the appropriate heat transfer correlation to sizing or rating a heat exchanger. Calculate Prandtle number. Get the latest version now. Shell and Tube Heat Exchanger MMT Shell and Tube Heat Exchanger MMT (Percent of shell ID) Tube Mean Metal Temperature Shell Mean Metal Temperature Cold Tubesheet Mean Temp (Un-Tubed) Cold Tubesheet Temperature Average Calculation Reference Heat Exchange Thermal Analysis Heat Calculation Preview. Design of a Shell and Tube Heat Exchanger Housam Binous, Reyad A. (Shell & Tube Heat Exchangers and. Base Cost For Shell and Tube Exchangers 30 or 60 Front End Stationary Head Type Rear End Head Type Layout Angle (in degrees) Construction type. We continue to set standards and shape developments through collaboration. 67 atm) for either the shell or tube side. Liquid - Liquid Exchanger Ashell and tube exchanger of following configuration is considered being used for oil cool-er with oil at the shell side and cooling water at the tube side. Clause UHX of ASME Section VIII division 1 defines the rules for the calculation of tubesheets in shell and tube heat exchangers. Shell-and-tube heat exchanger definition: A shell-and-tube heat exchanger is a type of heat exchanger that consists of a cylinder | Meaning, pronunciation, translations and examples. This standard is applicable to the following types of shell-and-tube heat exchangers: heaters, condensers, coolers,. The Basic Design Equation and Overall Heat Transfer Coefficient The basic heat exchanger equations applicable to shell and tube exchangers were developed in Chapter 1. Design the shell-and-tube heat exchanger. - enter two of the three shaded portions for Hot. USEFUL FORMULA FOR HEAT CALCULATIONS. 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. png 1,040 × 872; 398 KB. Aspen Exchanger Design and Rating Shell & Tube Mech V8. The calculation is done with a precise calculation software. [Counter-Flow Heat Exchanger] For Cross-Flow and Shell-and-Tube Heat Exchangers: ∆𝑇. The main process data that the client must define to design a heat exchanger are the flows, both product flow and service flow, as well as the inlet and outlet temperature. Calculate the overall heat transfer coefficient. This checklist can be used at design stage as well as during 3D Model Review. For example, they offer a much larger surface area than conventional heat exchangers, which allows for a greater and more efficient transfers of heat, boosted by faster temperature change speeds. Shell & Tube Shell and tube heat exchangers are the most widely used type of heat exchanger. Figure 1 details the geometry of a small tube that is coiled in a circular arrangement inside a shell, Figure 2. PVEng does not provide heat transfer calculations for heat exchanger designs. Preliminary design- and thermal-rating calculations for shell-and-tube exchangers were presented in Chapter 3. The software unlike other tools, ensures that the calculations are performed step by step to help in understanding the calculations. of air with different flow rate, 300, 2500 and 5000 LPM. Sealed with gaskets, the plate and frame heat exchanger works with a low pressure drop whilst maintaining high turbulence across the plate surface. The combination of fluids may be liquid-to-liquid, liquid-to -gas or gas-to-gas. An heat exchanger (shell and tube type. 35 Floating Head 1. 1 Number of tubes (N ):; 1. Very easy to use and user friendly. obtain the different results. Is there a phase change involved? The thought process involved is just as important as the calculations involved. Construction Parameters of Tubular Juice heater: 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. Evaluation of Heat Exchangers after accidental over-pressurization. CHANDRA says: 2010/01/15 at 10:06 pm WE NEED THE VALUE FOR U USING CON. Multitool Spreadsheet. ASME Section 8 Pressure Vessel and Heat Exchanger Software. but shell and tube hear exchangers are made of a shell like a vessel filled. Shell-and-tube type heat exchanger having (a) 0°, (b) 30°, and (c) 60° baffle angles. The most common problems in heat exchanger design are rating and sizing. 4 from our software library for free. 1) Internal Pressure The difference between the operation (Po) and design pressure (Pd) is a safety margin. Shell & Tube Shell and tube heat exchangers are the most widely used type of heat exchanger. Downloads Our brochures and datasheets for you to download. Calculate the overall heat transfer coefficient under the following service conditions. Introduction Saving material and energy are common objectives for optimization. So guide me. Our design incorporates more heat transfer tubes which provide a greater heat transfer surface than our competitors. Shell-and-tube heat exchanger definition: A shell-and-tube heat exchanger is a type of heat exchanger that consists of a cylinder | Meaning, pronunciation, translations and examples. It may also be used for the preliminary design of shell and heat exchangers in actual industrial. 1 Function and configuration of heat exchangers The shell-and-tube configuration Figure 3. This application calculates outlet stream temperature for a counterflow heat exchanger provided inlet conditions (temperature, flow rate), surface area and overall HTC are given. Based on the heat exchanger construction data a comparison with the CHEMCAD calculation is obtained. Tube rupture is possible cause overpressure in shell and tube heat exchanger type if Test Pressure of Low Pressure Side LESS than design pressure of High Pressure Side. 2 "Each input source is protected by a PSV set no higher than the maximum allowable working plessure of the heat exchanger section and a PSV is installed on the heat exchanger section for fire exposure and thermal relief. Email: [email protected] Advantages: The configuration gives a large surface area in a small. However, for some applications an external solar heat exchanger is needed (for example, indoor solar pool heating systems often use an external tube and shell heat. Only 3 left in stock - order soon. Delivery of heat exchanger operating like it is new. The plug header is the most commonly used up to. The modelling focused on two con gurations speci cally; the TEMA E shell and tube heat exchanger with single-phase ow on the shell side and the TEMA G shell and tube heat exchanger with condensation on the shell side. Mechanical: 1. Our in-house engineering team's expertise in heat and thermal transfer heat exchangers enables us to provide a broad range of solutions including: Design and fabrication for new facilities and pilot plants ; Build-to-print replacement shell and tube heat exchanger units for existing facilities. Figure 8 depicts a typical plot plan with several heat exchanger applications. manufactures specially designed shell and tube exchangers engineered to meet many applications including heating or cooling liquids for process systems, heat recovery, and comfort systems using steam or liquids. Nozzle Pipe Length. Energy saving is major matter in our global world, and heat exchanger is very useful for energy saving. It provides optimum heat transfer and flow conditions for a wide variety of fluids, with a built-in self-cleaning effect, while keeping the overall size of the unit to a minimum. · High efficiency - plates stacked on top of each other provide virtually no room for heat loss. 1 presents the schematic of a shell-and-tube heat exchanger where T hi and T ho are the inlet and outlet temperatures of the hot stream. Elements should be selected according to. Tubesheet Layout. When to use for Hairpin Heat Exchangers. is the minimum heat capacity rate in [W/K] Heat Capacity Rates: 𝐶. Shell and Tube Heat Exchanger Inspection in Manufacturing Shop The construction code for shell and tube heat exchangers is ASME Code Section VIII, and it covers the minimum requirements for design, materials, fabrication, inspection, testing, and preparation for initial delivery. ←U-Tube Heat Exchangers; Heat Exchanger Retubing and Rebuilding →; Call (989) 426-4768. 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. Construction Parameters of Tubular Juice heater: 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. The heat exchanger was designed in order to produce various drying temperatures of 40, 50, 60 and 70. SULPHURIC ACID AND WATER AS MEDIA IN SHELL AND TUBE HEAT EXCHANGER. Is there a phase change involved? The thought process involved is just as important as the calculations involved. There are several thermal design features that must be taken into account when designing the tubes in the shell and tube heat exchangers. An overview of heat exchanger design problems, a summary of key issues to cover in the design process, and a design methodology of heat exchangers is presented in this chapter. The software unlike other tools, ensures that the calculations are performed step by step to help in understanding the calculations. WCR stocks over 20,000 heat exchanger plates and 200,000 gaskets to shorten downtime as much as possible. We continue to set standards and shape developments through collaboration. General design considerations and design procedure are also illustrated in this paper. Multi/mono tube. Detailed calculation than displays many calculated variables such as: Duty, Area, Number of tubes, Shell/Tube velocities, flooding velocity and operating velocity for reflux condenser, Reynolds numbers, Condensation heat transfer coefficient, Condensation flow regime, Number of Baffles and Baffle spacing, Scale resistance (dirt factor), Overall. For this flow arrangement, a correction factor. The more passes the fluid makes, the more heat is transferred. Thermal Rating for a Shell and Tube Heat Exchanger. Design of shell and tube heat exchangers are done by formulating a standard procedure where the parameters required for building a HX is calculated using numerical method until the dimensions satisfy the condition for maximum overall heat transfer coefficient, this is done. A typical process industry shell-and-tube exchanger has a surface area density of less than 100 m2/m 3 on one fluid side. It is common practice to figure the area in square feet using the outside diameter of the tubing instead of an inside or mean diameter. 802 psi ft2 Actual. psi Calculate shell side mass flow rate, G Within allowed dP of 12 psi. Correlations for two-phase heat transfer and pressure drop developed by ACRC Project 01 are presented and discussed. Shell and Tube Heat Exchanger Design is a product developed by Webbusterz Engineering Software. A heat exchanger is a device in which energy is transferred from one fluid to another across a solid surface. It provides optimum heat transfer and flow conditions for a wide variety of fluids, with a built-in self-cleaning effect, while keeping the overall size of the unit to a minimum. Thermal design of the heat exchanger. air-side heat transfer resistance, the heat transfer resistance of the heat exchanger tube, and the refrigerant-side heat transfer resistance. Shell and Tube Heat Exchanger Shell and Tube Heat Exchanger. This video shows how to build a working model of a cross-flow, one pass, shell and tube heat exchanger for the purpose of analyzing the heat transfer coefficient of the design as well as the tube and shell side pressure drops. C) and high pressure (8 bar) fluid is used in shell and tube heat exchanger, due to high temperature tubesheet of heat exchanger expands which results expansion of shell and tubesheet. Setting shell side and tube side velocity limits. Calculate the log-mean temperature difference and the correction factor, if necessary. API Heat Transfer Inc. An overview of heat exchanger design problems, a summary of key issues to cover in the design process, and a design methodology of heat exchangers is presented in this chapter. The effective tube area is that portion within the shell exposed to the shell side fluid. 35 Floating Head 1. 1 Function and configuration of heat exchangers The shell-and-tube configuration Figure 3.