The plateandframe heat exchanger design consists of stacked of corrugated plates which are bonded together. These heat exchangers are constructed using several parallel heat exchanger tubes. Depending on the type of heat exchanger employed, the heat transferring process can be. Following are the types of direct contact type heat exchanger. Pdf selection of heat exchanger types gerard hawkins. Your heat exchanger should be used in accordance with the specified configuration of material, media types, temperatures and pressure for your specific heat exchanger 2. This is due to the larger area the plates provide over tubes.
R sekulib university of kentucky introduction a heat exchanger is a device that is used for transfer of thermal energy. Heat exchangers types, theory and basics training youtube. This report shows us different types of heat exchangers and explains some advantages and disadvantages of each type. The ratio of the heat transfer surface area of a heat exchanger to its volume is called the area density heat exchangers with. Fixed tubesheet exchanger nonremovable tube bundle. There are different types of compact heat exchanger design available.
A heat exchanger is a device that is used to transfer thermal energy enthalpy between two or more fluids, between a solid surface and. Types of heat exchangers used on ship marine insight. This heat exchanger consists of two concentric pipes of different diameters. Understanding heat exchangers types, designs, applications and. Heat exchanger is a process equipment designed for the effective transfer of heat energy between two fluids. Two types of convection are natural convection and forced convection. Whilst the preheater, vapouriser and condenser are all. Pdf a heat exchanger is a heat transfer device that exchanges heat between two or more process fluids.
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. These exchangers are composed of many thin, slightly separated plates that have very large surface areas and small fluid flow. As the fluid or gas travels faster, the convective heat transfer increases. Heat exchanger is widely applied to industrial process, power plant. It is a device that is used to transfer thermal energy from one body or fluid stream to another heat exchanger seminar ppt with pdf. A compact heat exchanger is a device characterized by a high heat transfer area per unit volume more than 300 m2m3. It is the most common type of heat exchanger in oil refineries and other large chemical processes.
The simplest heat exchanger is one for which the hot and cold fluids move in the same or opposite directions. The shellandtube heat exchanger sthe is the most common type of heat exchanger. They allow high heat transfer rates between fluids in a small volume. In process calculations, the main objectives of heat exchanger calculations are to determine the heat. Shell and tube heat exchangers the most common type of heat exchangers, shell and tube heat exchangers are constructed of a single tube or series of parallel tubes i. A piece of equipment built for efficient heat transfer from one medium to another. Different types of heat exchangers are used onboard a ship. Different types of heat exchangers in addition, the overall heat transfer equation for the exchanger must be solved simultaneously. Closeup view of a section of a watertoair heat exchanger.
Types of heat exchangers shell and tube, plate type. Heat exchangers have widespread industrial and domestic applications. The engineer may have little knowledge of the attributes of. Describe hot and cold fluid flow in parallel flow, counter flow, and cross flow heat exchangers. How to design a tubular heat exchanger hrs heat exchangers. Types of heat exchangers classification of heat exchangers. Another type of heat exchanger is the plate heat exchanger. In heat exchanger applications, stainless steel finned tubes are often required for the optimum design for a specific application. An alternate method based upon heat exchanger effectiveness is more appropriate for this type of analysis.
Two types of flow arrangement are possible in a doublepipe heat exchanger. A heat exchanger is a device that is used to transfer thermal energy. Heat transfer heat exchanger types of heat exchangers. Heat exchangers jordan university of science and technology.
The heart of the heat exchanger contains a fully welded circular plate pack made by pressing and cutting round plates and welding them together. The aircooled heat exchanger is a device for rejecting heat from a fluid or gas directly to ambient air. Pdf heat exchanger types and classifications researchgate. The type of heat exchanger used for a particular usage depends on the application and requirement. Different types of heat exchangers are shown in figure 42.
In this both hot and cold fluid comes in contact and mixed up to exchange heat. Heat transfer processes set limits to the performance of aerospace components and. Heat exchangers are typically classified according to flow arrangement and type of construction. Heat exchanger application an overview sciencedirect.
Types of heat exchanger, process design of shell and tube heat exchanger, condenser, and reboilers. Plate type heat exchangers are not widely used because of the inability to reliably seal the large gaskets between each of the plates. This portable document format \ pdf \ file contains bookmarks, thumbnails, and hyperlinks to. Tema stands for tubular exchangers manufacturers association and is a set of standards that were developed by leading shell and tube manufacturers. A heat exchanger is a system used to transfer heat between two or more fluids.
Classification according to transfer process indirect contact type direct contact type direct transfer storage. Although the majority of heat exchangers used on chemical plant are shell and tube units, there are many other types available. Due to the high heat transfer efficiency of the plates, plate type heat. Cooling tower is a type of heat exchanger in which hot fluid is cooled by the water spray. Introduction to engineering heat transfer these notes provide an introduction to engineering heat transfer. Shell and tube heat exchanger design software for educational applications pdf. Heat exchangers are devices that regulate efficient heat transfer from one fluid to another. Comparison of heat exchanger types each of the three types of heat exchangers parallel, cross and counter flow has advantages and disadvantages. 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. A heat exchanger is a device that is used to transfer thermal energy enthalpy.
For the heat transfer to occur two fluids must be at different. Plate heat exchangers a plate heat exchanger, phe, is a compact heat exchanger where thin corrugated plates some 0. Heat transfer 1 heat exchangers heat transfer heat exchanger types of heat exchangers heat exchangers are classified according to flow arrangement and. Many different exchanger configurations can be easily created by different combinations of front end, shell and rear end. Heat exchanger is a device for transferring heat from one medium to another.
A shell and tube heat exchanger is a class of heat exchanger. In process calculations, the main objectives of heat exchanger calculations are to determine the. When cooling both fluids and gases, there are two sources readily available. Heat exchanger hx is a device that provides heat exchange between two fluids that have temperature difference. Tube sheets are used to hold these heat exchanger tubes firmly in place. The heat exchangers are the most simplified unit operation used in the vmgsim model when compared with models in literature. 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. The simplest and cheapest type of shell and tube exchanger is with fixed tube.208 262 530 1048 621 1104 1400 1550 466 768 44 468 234 1220 1531 906 339 361 42 681 219 514 82 1312 691 1142 458 1159 538