Heat transfer mechanical 3rd year engineering lecture. Heat exchangers are used to transfer heat between two sources. Conduction, convection, and radiation introduction we have learned that heat is the energy that makes molecules move. Here is an example of a 12 1 shell pass and 2 tube passes heat exchanger. Heat exchangers 73 individual thermal resistances of the system.
Most generally, this is done using although in practice it is more. Anna university regulation 20 mechanical engineering mech me6502 hmt notes for all 5 units are provided below. Heat exchanger the purpose of a heat exchanger is just thatto exchange heat. Design of a heat exchanger is sometimes referred to as. I have uploaded this ebook handwritten lecture notes on heat transfer in pdf format for easy downloading below. Combining each of these resistances in series gives. Selection, rating, and thermal design written by sadik.
Heat transfer processes set limits to the performance of aerospace components and. Based on chapter 11 in the textbook of cengel and ghajar 4th edition. The objectives of this integrated subject are to develop the fundamental principles and laws of heat transfer and to. Pdf heat transfer ace academy handwritten class notes. Download link for mech 5th sem me6502 heat and mass. Nptel mechanical engineering heat and mass transfer. Here you can download the free lecture notes of heat transfer pdf notes ht pdf notes materials with multiple file links to download. Radiation heat transfer full lecture notes youtube. Read book process heat transfer by kern solution manual 11. T is independent of position in the heat exchanger.
Me6502 hmt notes, heat and mass transfer lecture notes. Subscripts h and c refer to the hot and cold fluids, respectively, and subscripts i and o refer to the inlet and outlet of the heat exchanger, respectively. This course is an introduction to the principal concepts and methods of heat transfer. Pdf lecture notes on heat and mass transfer find, read and cite all the research you need on researchgate. Effectiveness relations notes for shellandtube heat exchanger with multiple shell passes, it is assumed that the total ntuis equally distributed between shell passes of the same arrangement for crossflow heat exchangers, both fluids unmixed, eqn. Introduction to engineering heat transfer these notes provide an introduction to engineering heat transfer. The selection of a heat exchanger depends on many factors including capital and operating costs, fouling, corrosion tendency, pressure drop, temperature ranges. If heat capacity rates of the cold and hot fluids are the same and the heat exchanger is operated in the counterflow regime then. For the heat transfer to occur two fluids must be at different temperatures and. Selection, rating, and thermal design written by sadik kakac, hongtan liu and anchasa pramuanjaroenkij is very useful for mechanical engineering mech students and also who are all having an interest to develop their knowledge in the field of design. Introduction to heat transfer mechanical engineering. For a specific duty we need to specify the necessary area or length and to decide what type of heat exchanger we need. Note in the figures shown above that the hot stream may be cooled to t1 for counter flow, but may only be cooled to t2 for parallel flow.
The basic component of a heat exchanger can be viewed as a tube with one fluid running. The simplest heat exchanger is one for which the hot and cold fluids move in the same or opposite directions in a concentric tube or doublepipe construction. Unit operations lab heat exchanger 12 theory notes 1. Lecture notes 10 handouts 30 others 12 module name download description. Molecules with more heat energy move faster, and molecules. Heat exchangers are devices used to transfer heat between two or more fluid streams at different temperatures. 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. 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 process streams resulting in energy integration and reduction of external heat sources. In compact heat exchangers, the two fluids usually move perpendicular.
I am sharing the heat transfer ace academy pdf handwritten classroom notes for gate on this page that can be easily downloaded for. The term heat exchanger applies to all equipment used to transfer heat between. Heat exchanger lecture notes free download as word doc. Heat exchanger lecture notes heat exchanger heat transfer. Pdf me6502 heat and mass transfer hmt books, lecture. Download me6502 heat and mass transfer hmt books lecture notes syllabus part a 2 marks with answers me6502 heat and mass transfer hmt important part b 16 marks questions, pdf books. Heat lecture 9 cm3110 1272015 2 heat transfer with phase change so far we have discussed heat transfer at a boundary due to a temperature difference between bulk temperatures x bw q ht t a 1. Heat transfer, ht study materials, engineering class handwritten notes, exam notes, previous year questions, pdf free download. Heat transfer processes set limits to the performance of aerospace components and systems and the subject is one of an enormous range of application. Most processes require the heating or cooling of streams to produce a desired temperature before the stream can be.
Nptel provides elearning through online web and video courses various streams. Pdf process heat transfer by donald kern free download. The most common type of heat exchanger in industrial. Conduction is that mode of transmission of heat by which heat travels, through an unequally heated body, from the hot end to the cold end, from particle to.
Heat exchanger is a process equipment designed for the effective transfer of heat energy between two fluids. The notes are intended to describe the three types of heat transfer and provide. Heat and mass transfer study notes hand written free. John richard thome ltcm sgm epfl heat transfer heat exchanger design 1er mars 2008 6 41 the cross. The heat transfer notes pdf ht notes pdf book starts with the topics covering modes and mechanisms of heat transfer, simplification and forms of the field equation, one dimensional transient conduction heat transfer, classification of systems based on. Heat exchanger ask latest information, heat exchanger abstract,heat exchanger report,solar tracking system presentation pdf,doc,ppt,heat exchanger technology. Heat transfer ht study materials pdf free download. Note that the term recuperator is not commonly used in the process. A heat exchanger is a device that is used to transfer thermal energy enthalpy between. 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. Plate heat exchanger, how it works working principle hvac industrial engineering phx heat transfer in this video we learn how a.
Pdf download sadik kakac, hongtan liu and anchasa pramuanjaroenkij by heat exchangers. Heat exchangers jordan university of science and technology. Handout that help students for design of heat exchangers based on kerns method. Most shellandtube heat exchangers have multiple passes to enhance the heat transfer. 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. Process heat transfer written by donald kern is very useful for mechanical engineering mech students and also who are all having an interest to. The basic design calculation for any heat exchanger is the determination of heat transfer area.
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