Energy audit calculations for heat exchanger of captive power. The exchange can take place between a process stream and a utility stream cold water. Heat exchanger design john richard thome 1er mars 2008 john richard thome ltcm sgm epfl heat transfer heat exchanger design 1er mars 2008 1 41. Difference between heat exchanger and condenser in hindi condenser and heat exchanger duration. Oct 23, 2019 phex is an easy to use tool which demonstrates the thermal calculations of gasketed plate heat exchangers, the plate dimensions and materials can be entered, this includes the size of plate heat exchanger and chevron angle. Since we deal here with a component heat exchanger and there is no conversion of different forms of energy in a heat exchanger although the conversion between heat flow and enthalpy change is present, the term effectiveness the efficiency of a heat exchanger. Energy audit calculations for heat exchanger of captive. Doublepipe heat exchanger one fluid flows through the smaller pipe while the other fluid flows through the annular space between the two pipes. Calculate the required heat transfer area based on values needed. Heat transfer 1 heat exchangers heat transfer heat exchanger types of heat exchangers heat exchangers are classified according to flow arrangement and type of construction. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural. Heat exchanger fouling and estimation of remaining useful. A piece of equipment built for efficient heat transfer from one medium to another. The overall heat transfer coefficient, u, is an approximate value.
Understanding heat exchangers types, designs, applications. Closeup view of a section of a watertoair heat exchanger. The second heat transfer process is convection, or heat transfer due to a flowing fluid. Most processes require the heating or cooling of streams to produce a desired temperature before the stream can be fed to operations. Introduction to engineering heat transfer these notes provide an introduction to engineering heat transfer. Heat exchangers march 21, 2005 content instruction heat transfer and fluid flow heat exchangers heat exchangers and systems summary instruction heat transfer. A heat exchanger does exactly that exchanges heat between two streams, heating one and cooling the other. A single packinox heat exchanger outperforms systems consisting of multiple large shellandtubes, both in terms of heat recovery and investment costs. Heat exchangers are devices that regulate efficient heat transfer from one fluid to another. Heat exchangers are an enabling technology for efficient power generation with a closed, recuperated brayton cycle using supercritical carbon dioxide sco 2 as the working fluid. That is, the design of a two fluid heat exchanger used for the. Table 41 summarizes the useful energy output and energy input for some common energy conversion. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing and sewage treatment.
Ppt heat exchanger powerpoint presentation free to. Understanding heat exchangers types, designs, applications and. Heat exchanger, any of several devices that transfer heat from a hot to a cold fluid. Peterson, capillary tube and shell heat exchanger design for helium to liquid salt heat transfer, report ucbth07003, u. Concentrictube heat exchangers parallel flow counterflow simplest configuration. Sandia progress on advanced heat exchangers for sco2. Principles of finnedtube heat exchanger design for enhanced heat transfer 2nd edition by dipl. Platefin heat exchangers have lots of thin metal plates or fins with a large surface area because that exchanges more heat more quickly. A heat exchanger is a device that is used to transfer thermal energy enthalpy between two or more fluids, between a solid surface and. Heat exchangers are used to transfer heat between two sources. Upadhyaya2 1 department of industrial and systems engineering, university of tennessee, knoxville, tn 37996, usa. The heat exchanger designs must balance between heat exchanger effectiveness and pressure drop to achieve the desired. In the case of the intermediate heat exchanger, 617, 625, 230, and 740 are all easily suitable materials at 550 c, with 8. 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.
Heat transfer equipment powerpoint heat exchanger heat. With a plate type heat exchanger, the heat penetrates the. Scribd is the worlds largest social reading and publishing site. 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.
The optimum thermal design of a shell and tube heat exchanger involves the consideration of many. Aircooled heat exchangers are usually used when the heat exchanger outlet temperature is at least 20 of above the maximum expected ambient air temperature. Pdhonline course m371 2 pdh shell and tube heat exchangers. In a condenser, a vapour is converted into a liquid, while in an evaporator and a. Heat exchangers influence the overall system efficiency and system size. Some of the types of shell and tube heat exchangers available include helical coil heat exchangers and double pipe heat exchangers, and some of the applications include preheating, oil cooling, and steam generation. Packinox heat exchangers combine the highpressure and hightemperature resistance of shellandtube heat exchangers with the outstanding heat transfer performance of plate heat exchangers. Heat exchanger problem calculation lmtd and effectiveness.
They involve heat exchange between two fluids separated by a solid and encompass a wide range of flow configurations. 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. Therefore an advanced design of heat exchanger is required to perform overall optimized value as per the current industries demands. A heat exchanger is a system used to transfer heat between two or more fluids. Rev 01 a l ling rev 03 viska mulyandasari checked by. Heat exchanger selection and sizing engineering design guideline author. Heat enchanger the equipment used to transfer a heat is known as heat exchanger. In many engineering applications it is desirable to increase the temperature of one fluid while cooling another.
Just select the files, which you want to merge, edit, unlock or convert. You can easily convert your pdf files to ppt with this online tool. Capillary tube and shell heat exchanger design for helium to liquid salt heat transfer. Microsoft powerpoint compact heat exchangers for npps170. Heat transfer processes set limits to the performance of aerospace components and systems and the subject is one of an enormous range of application. If the heat exchanger is located at the inlet or discharge of a blower with a pulsating flow, such as a roots type rotary lobe blower, the heat exchanger must be protected from the pulsation by a chambered silencer. Aug 11, 2009 spiral heat exchangers spiral heat exchangers can be used in most applications in the chemical process industry in many difficult applications where fouling and plugging are problems, a standard shell and tube design may not be effective while a spiral heat exchanger often has a higher initial cost, it may provide a lower life. Heat exchanger acts as a major role in the modern industry such as power industry, process industry, automobile industry, aerospace industry, etc. The notes are intended to describe the three types of heat transfer and provide. In any heat exchanger there must be a fluid that requires a change in energy heating or cooling and a fluid. The heat exchanger block is used when two process streams are to exchange heat based on equations 11 14. Sandia progress on advanced heat exchangers for sco2 brayton.
It is active to some degree or another in everything. Heat exchanger fouling and estimation of remaining useful life tutpol ardsomang1, j. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. Design considerations 1 heat exchangers design considerations. The theories of transient heat transfer in doublepipe heat exchangers were explained and followed by literature correlations. The exchanger takes one inlet and one outlet for hot fluid stream, and one inlet and one outlet for cold fluid stream. In contrast to the parallel flow heat exchanger, the counter flow heat exchanger can have the hottest coldfluid temperature greater than the coldest hotfluid temperatue. We certify that the project entitled design of small heat exchanger double pipe type is written by mohamad shafiq bin alias. Ppt heat exchangers powerpoint presentation free to. Heat transfer heat exchanger types of heat exchangers.
They are widely used in space heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum. The theory of heat transfer from one media to another, or. Spiral heat exchangers spiral heat exchangers can be used in most applications in the chemical process industry in many difficult applications where fouling and plugging are problems, a standard shell and tube design may not be effective while a spiral heat exchanger often has a higher initial cost, it may provide a lower life. Gtls, is a specialist in the design and manufacture of brazed aluminum heat exchangers bahx, which are mission critical for. If it is not, then an incremental analysis of the heat exchanger is required. Phex is an easy to use tool which demonstrates the thermal calculations of gasketed plate heat exchangers, the plate dimensions and materials can be entered, this includes the size of plate heat exchanger and chevron angle. Following diagram is the structure of a tema style shell and tube heat exchanger.
Simple or composite wall of some kind divides the two. We have examined the final copy of this project and in our opinion. Therein, popular analytical techniques such as log mean temperature difference lmtd and effectivenessnumber of. Center for advanced nuclear energy systems mit department of nuclear science and. Tubular heater, multipass heater, twopass floating head heater. Heat is also obtained from electricity in a light bulb, as we well know. Counter flow heat exchangers are the most efficient of the three types. But this is not the useful energy obtained from a light bulb. A procedures manual was created for the doublepipe heat exchanger. Sgm epfl heat transfer heat exchanger design 1er mars 2008 12 41. Since we deal here with a component heat exchanger and there is no conversion of different forms of energy in a heat exchanger although the conversion between heat flow and enthalpy change is present, the term effectiveness the efficiency of a. In convection heat transfer, the heat is moved through bulk transfer of a nonuniform temperature fluid. Karl ponweiser institute for thermodynamics and energy conversion vienna university of technology vienna, austria published by wseas press.
Heat exchangers have widespread industrial and domestic applications. This double action is economically accomplished by a. Heat exchangers are manufactured from robust materials, have no moving parts and operate at a variety of different pressures and temperatures, therefore if a heat exchanger is used in the correct way then there is no reason why it shouldnt be able to remain operational for many years. May 27, 2014 difference between heat exchanger and condenser in hindi condenser and heat exchanger duration. The second type is regenerative type, in which hot and cold fluids are in the same space which contain a matrix of materials which work alternately as source for heat flow. Levenspiel 1998 divides heat exchangers into three groups.
Applicability of supercritical co2 power conversion systems to gen iv reactors topical report no. The second type is regenerative type, in which hot and cold fluids are in the same space which contain a matrix of. Heat transfer equipment powerpoint free download as powerpoint presentation. They are widely used in space heating, refrigeration, air conditioning, power plants, chemical plants, petrochemical plants, petroleum refineries, natural gas processing and. The unit conversion throughout the book may not be exact.
A procedure for use of the equipment and the software was outlined. Download the excel spreadsheet templates in this article to make preliminary heat exchanger design calculations. Shell and tube heat exchangers basic calculations pdh online. This double action is economically accomplished by a heat exchanger. 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. Heat exchanger fouling and estimation of remaining useful life. A free powerpoint ppt presentation displayed as a flash slide show on id.
Furthermore, the online pdf converter offers many more features. The heat exchanger must be isolated from system vibrations using flexible piping connections and isolation pads on the mounting feet. A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. Heat exchangers are used in both cooling and heating processes. A heat exchanger is a heat transfer device that exchanges heat between two or more process fluids. A is the area of heat transfer normal to heat flow, ft2. Heat transfer equipment for designing of heat exchangers. Heat exchangers jordan university of science and technology. Heat exchanger types heat exchangers are used to energy conversion and utilization.