The heat exchanger must be isolated from system vibrations using flexible piping connections and isolation pads on the mounting feet. The effectiveness of a heat exchanger is defined as the ratio of the actual heat transferred to the maximum possible heat transfer. Heat and mass transfer, is a bestseller in the area of mechanical, aerospace, and chemical engineering. 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. Companies dealing with the design and fabrication of heat exchangers, auto mobile industries, process industries, oil refineries. Heat transfer mechanical mcqs pdf civil engineering mcqs. Jul 01, 2016 because the cooler fluid exists the counter flow heat exchanger at the end where the hot fluid enters the heat exchanger, the cooler fluid will approach the inlet temperature of the hot fluid. Apply to mechanical engineer, senior research engineer, production engineer and more. Hence, a gas turbine regenerator could be either a recuperator or a regenerator in a strict sense, depending on the construction. Theory and application two fluids, of different starting. A third type of heat exchanger is a plate and shell heat exchanger, which combines plate heat exchanger with shell and tube heat exchanger technologies. Automobile engineering important multiple choice questions with answers pdf. Among high temperature heat exchanger technologies, the multitubular heat exchanger with separated tubes appears the most appropriate considering all. 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.
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. Nptel material is available for free on nptel website. Plate heat exchangers offer excellent performance at a lower cost and with less floor space. Due to different requirement we have got different construction of heat exchanger. We have examined the final copy of this project and in our opinion. Due to the large number of heat exchanger configurations, a classification system was devised based upon the basic operation, construction, heat transfer, and. Heat exchangers are devices that regulate efficient heat transfer from one fluid to another. Engineering department, ump, who helped me in many ways and made my stay at. There are numerous design variants intended to provide levels of performance tailored to specific process requirements.
The following are to links of heat exchanger related tools, articles and other useful data. If you are not able to download lectures due to bandwidth constraints, you can obtain the courses in dvds by paying a nominal fee to cover the cost of storage media and distribution. All the companies generating coal based and nuclear based power ntpc, different state electricity boards, cpri, barc, and npcl etc. Companies dealing with waste heat recovery and renewable. Heat transfer processes set limits to the performance of aerospace components and systems and the subject is one of an enormous. Types of heat exchangers heat exchanger analysis lmtd method. Heat exchanger is a device built for efficient heat transfer from one medium to another, whether the media are separated by a solid wall so that they never mix, or the media are in direct contact. A computer program in matlab has been written for shell and tube heat exchanger design. Cryogenic engineering center indian institute of technology, kharagpur lecture tubular heat exchanger. Heat integration is performed in central heat exchanger 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. In the first phase of the nptel project, iitg has developed 05 video courses and 15 web courses and in the second phase, iitg has developed 16 video courses and 64 web courses. Fundamentals and design analysis heat exchanger network analysis by pinch technique prof.
Heat exchanger heat exchanger performance, lmtd and ntu methods. Let and be the mass flow rates of the hot and cold fluids, c h and c c be the respective specific heat capacities and the terminal temperatures be th and t h for the hot fluid at inlet and outlet, and for the cold. An ordinary heat exchanger is singlephase or twophase. Introduction to thermal and hydraulic aspects, pressure drop and heat transfer, sizing and rating. Heat exchangers 73 individual thermal resistances of the system. Nptel online certification courses since 20, through an online portal, 4, 8, or 12week online courses, typically on topics relevant to students in all years of higher education along with.
This page provides more than 0 valuable chemical engineering mcqs pdf topic wise. Radiation radiative heat transfer, stefanboltzmann law, wiens displacement law, black and grey surfaces, view factors, radiation network analysis. The steam generator and main condenser of nuclear facilities are. So, tubular heat exchanger, the simplest type could be a double pipe. Simple or composite wall of some kind divides the two. Aerospace engineering 16, civil engineering 60, mathematics 24.
Heat exchangers fundamentals and design analysis prof. Nptel chemical engineering chemical engineering design ii joint initiative of iits and iisc funded by mhrd page 2 of 41 lecture 1. So, there is a central tube and there is another tube surrounding it. The two most common heat exchanger design problems are those of rating and sizing. As part of my 3rd year computational fluid dynamics cfd module, i was tasked with designing a cross flow heat exchanger, using cfd, capable of providing 1. Mechanical vibrations nptel online videos, courses iit. In intercoolers, boilers, preheaters and condensers inside power plants as well as other engineering processes, heat exchangers are utilized for controlling heat energy. A heat exchanger is an equipment where heat energy is transferred from a hot fluid to a colder fluid. Faculty of mechanical engineering we certify that the project entitled design of small heat exchanger double pipe type is written by mohamad shafiq bin alias. Classification of heat exchangers transfer of heat from one fluid to another is an. Chapter 5 heat exchangers faculty of engineering and. Gaitonde, department of mechanical engineering, iit bombay. It is very useful for all kind of gate, ssc, ese and other competitive examinations.
A double pipe heat exchanger consists of one pipe inside another. Crossflow, parallel flow, and counterflow heat exchanger configurations are three examples. A thermal resistance for this case is as sh own below. All materials used construction of shell and heat exchangers for pressure. 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. Heat exchanger engineering and design engineers edge.
Efficiency and ease of use are hallmarks of mueller accutherm plate heat exchangers. In twophase exchangers, either of the fluids may change its phase during the heat exchange process. So, already we have talked about the double pipe heat exchanger in one of. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. It can be operated as a parallel flow or as a counterflow heat exchanger. Video lesson mechanical engineering heat transfer video lecture training, list videos, quiz, materials, useful links, documents and discussions for mechanical engineering heat transfer video lecture training. Most processes require the heating or cooling of streams to produce a desired temperature before the stream can be fed to operations. Chemical engineering mcqs pdf civil engineering mcqs. Do nptel videos help in preparing for ies exam for mechanical. And today we will be talking about the shell and tube heat exchangers in details, but before going to that in details we first of all. Double pipe heat exchanger design requires use of the heat transfer rate, the log mean temperature difference, and an estimate of the overall heat transfer coefficient to calculate the estimated heat transfer surface area. So, if we look into this construction either it will be as it has shown that the fluid is. Introduction evaporation is the removal of solvent as vapor from a solution, slurry or suspension.
Heat exchangers are used to transfer heat between two sources. However, the term is commonly used to equipment in which two process streams exchange heat with each other. The basic principles of plate fin heat exchanger manufacture are the same for all sizes and all materials. A heat exchanger is a device used to transfer heat between a solid object and a fluid, or between two or more fluids. Common applications of heat exchangers include boilers, fan coolers, cooling water heat exchangers, and condensers.
The pinch design method for heat exchanger networks by b. Introduction to heat transfer general heat conduction equation one dimensional steady state conduction in rectangular coordinate,cylindrical and spherical coordinate ritical and optimum insulation extended surface heat transfer analysis of lumped parameter model transient heat flow in semi infinite solid infinite body subjected to sudden convective graphical. Which are very useful for all kind of gate, ese, ssc, rrb, state and central level civil. Pcompletely revised and updated to reflect current advances in heat exchanger technology, strongheat exchanger design handbook, second editionstrong includes enhanced figures and thermal effectiveness charts, tables, new chapter, and additional topicsall while keeping the qualities that made the first. Basic thermodynamics, fluid mechanics, heat transfer, rac are very good. Shell and tube welcome to this lecture tubular heat exchanger. Which of the following is the case of heat transfer by radiation. So, classification of heat exchanger is very important and. Home engineering transport phenomena heat transfer home engineering transport phenomena heat transfer. Fluid engine oil sea water inlet temperature, c 65 20 outlet temperature, c 55 25 heat load, kw 117. The heart of the heat exchanger contains a fully welded circular plate pack made by pressing and cutting round plates and welding them together. Heat transfer nptel online videos, courses iit video lectures. A heat exchanger can have several different flow patterns. Pdf design and construction of a spiral heat exchanger.
Enventure offers advanced mechanical engineering services to customers that help them in developing complex mechanical designs and products. Dec 10, 2008 lecture series on heat and mass transfer by prof. Energetic and exergetic analysis of a heat exchanger. Overall heat transfer coefficient for doublepipe heat. Nptel convective heat transfer via swayam advanced. Enventure has a fullservice mechanical product design team, that offers concept design, engineering analysis, detail engineering, technical documentation, and cad support services.
Nptel chemical engineering video lecture online study material. Heat exchanger and its types engineering solutions. Heat exchangers are devices used to transfer heat energy from one fluid to another. Should you find any errors omissions broken links, please let us know feedback. As its name implies, this type of heat exchanger consists of a shell a large vessel with a bundle of tubes inside it. Gate mechanical engineering heat transfer video lecture. Pdhonline course m371 2 pdh shell and tube heat exchangers. In any heat exchanger there must be a fluid that requires a change in energy heating or cooling and a fluid. Pdf heat and mass transfer books collection free download. Nptel notes pdf civil engineering 105 courses in pdf format. Faculty of engineering and technology fet department of electrical engineering power and control pce department of mechanical engineering me department of electrical engineering communications and computer cce department of civil and infrastructure engineering cie alternative energy technology department. The book gives the most relevant, comprehensive, and readable information about the physical origins of mass and heat transfer and is recommended for students who are looking for factual information on the subject. For the love of physics walter lewin may 16, 2011 duration.
Nov 6, 2018 heat exchanger design handbook, second edition mechanical engineering. However, be careful, the minimum approach temperature may be violated. Mod04 lec17 heat transfer corelations for flow across tube banks mod04 lec18 momentum and heat transfer analogies mod04 lec19 boundary layer heat transfer. The transfer of heat energy between the two fluids could be carried out.
Understanding the fundamentals governing heat transfer is key to designing equipment that involves heat exchange. Yes definitely but some of the topics in nptel are not covered properly. A counterflow heat exchanger will require less heat exchange surface area than a parallel flow heat exchanger for the same heat transfer rate and the same inlet and outlet temperatures for the fluids. Manufacturing and machine design are very boringso its more than sufficient. Overall heat transfer coefficient for doublepipe heat exchanger pump water through inner pipe of doublepipe heat exchanger flow steam through outer pipe of doublepipe heat exchanger allow to come to steady stat e monitor. Design a double pipe heat exchanger with bare inner multitubes that can be used to cool engine oil with cold sea water. Nptel chemical engineering chemical engineering design ii joint initiative of iits and iisc funded by mhrd page 2 of 31 lecture 1. The term heat exchanger applies to all equipment used to transfer heat between two streams. Heat exchanger design handbook pdf alzaytoonah university. Double pipe heat exchanger design with counterflow or. Background, application, classification, common terminologies.
So, we have a double type heat exchanger double tube heat exchanger. Design and construction of a spiral heat exchanger article pdf available in advances in chemical engineering and science 0602. 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. Heat transfer nptel online videos, courses iit video. Herewith we have shared the heat transfer mechanical engineering multiple choice questions and answers pdf. Nptel notes pdf civil engineering 105 courses in pdf. Heat exchanger the purpose of a heat exchanger is just thatto exchange heat. And i have shown in my in one of my earlier lecture show, either it is called double pipe heat exchanger or tube in tube heat exchanger. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contact. Pdf me6502 heat and mass transfer hmt books, lecture.
Proone is a product from that helps in the preparation of technical competitive exams such as gate, ies, drdo, barc, jto, etc. Heat transfer online course video lectures by iit guwahati. This course for undergraduate students covers the fundamental aspects and quantitation of different modes of heat transport. This book has been written primarily with heat transfer engineers in mind but also for research engineers who want to get caught up on the latest advances in heat transfer design methods for tubular heat exchangers. The transfer of heat is usually accomplished by means of a device known as a heat exchanger. In a singlephase heat exchanger, both of the fluids cooled and heated remain in their initial gaseous or liquid states. Heat exchanger companies suppliers engineering analysis menu. Types of heat exchanger, process design of shell and tube heat exchanger, condenser, and reboilers. The mission of nptel is to enhance the quality of engineering education in the country by providing free online courseware. Let us say that there will be i mean there we need heat exchange between 2. In cross flow heat exchangers, one fluid flows through tubes and second fluid passes around the tubes perpendicularly. The course can also serve as a refresher for graduate students.
So, we would like to spend some time on tabular heat exchangers. In the first phase of the nptel project, iitg has developed 05 video courses and 15. Heat exchangers study notes for mechanical engineering. Combining each of these resistances in series gives. Fouling of exchanger increases the cost of i construction due to oversizing. A shell and tube heat exchanger is a class of heat exchanger. Ht1 introduction to engineering heat transfer these notes provide an introduction to engineering heat transfer. Qualitative dependence of the fluid temperature on position inside a singlepass heat exchanger is shown in fig. These books are used by students of top universities, institutes and colleges. 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 mission of nptel is to enhance the quality of engineering education in the. Aloke kumar ghosal, department of chemical engineering, iit guwahati.
Shell and tube heat exchanger mountain states engineering. If you need help choosing the right size, plate material or gasket, please call or email us to talk with one of our process engineers immediately. It is the most common type of heat exchanger in oil refineries and other large chemical processes. Nptel provides elearning through online web and video courses various streams. 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. Lecture 1 introduction on heat and mass transfer youtube. The transfer of thermal energy between fluids is one of the most important and frequently used processes in engineering. Heat exchangers jordan university of science and technology. May 16, 2016 shell and tube heat exchanger shell and tube heat exchanges are found throughout fluid based industrial process control operations where heat must be transferred between two closed fluid systems.
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