Shell and tube heat exchangers in their various construction modifications are probably the most widespread. This is a simplified example of a shell and tube exchanger. Plate heat exchangers working principle is to provide heat transfer between two liquids. Two fluids, of different starting temperatures, flow through the heat exchanger. Chapter 5 heat exchangers faculty of engineering and. It is the most common type of heat exchanger in oil refineries and other large chemical. One fluid runs through the tubes, and another fluid flows over the tubes through the shell to transfer heat between the two fluids. The shellandtube heat exchanger is composed of a shell containing a large number of tubes. Operating principle of a parallelflow heat exchanger. Heat exchanger maintenance training animation types. The heat exchanger discussed in this manual has been carefully.
All about shell and tube heat exchangers what you need to know. A shell and tube heat exchanger passes fluids through and over tubes, where as an air. It is the most common type of heat exchanger in oil refineries and other large chemical processes. A shell a large pressure vessel with a bundle of tubes inside it. Heat is transferred by conduction through the exchanger materials which separate the mediums being used. The standard types of shell and tube heat exchangers are regulated by the tubular exchangers manufacturers association or tema. These two integral pathways are usually built out of thermally conductive metals that allow easy heat transfer steel, aluminum alloys, etc.
Due to the high heat transfer efficiency of the plates, plate type heat. Basically, a heat exchanger does the function of either cooling or heating a fluid depending on the requirement. A hot medium fluid is first send to a temporary storage area called head. Plate heat exchanger working principle, how a plate heat. Fluids are a subset of the phases of matter and include. Plate heat exchangers were first produced in the 1920s and have since been widely used in a great number of sectors a plate exchanger consists of a series. The heat exchanger is simple in structure and reliable in operation. The doublepipe heat exchanger is one of the simplest types of heat exchangers. The fluid in the shell will then be the fluid that is heating or cooling the the fluid in the tube.
Shell and tube heat exchanger consists of a shell in which large number of parallel tubes are present. These heat exchangers are constructed using several parallel heat exchanger tubes. A shell and tube heat exchanger is a class of heat exchanger designs. In industrial processes, heat energy is transferred by a variety of methods, including conduction in electric resistance heaters. This arrangement can be considered as using screw shaped.
Plate type heat exchanger working principle a plate heat exchanger is a type of heat exchanger that uses metal plates to transfer heat. This is due to the larger area the plates provide over tubes. Shell and tube heat exchanger types yes yen graphitech. The course, designed with extensive graphics and animation. Shell and tube heat exchangers are one of the most popular types of exchanger due to the flexibility the designer has to allow for a wide range of pressures and temperatures. All about shell and tube heat exchangers what you need. A shell and tube heat exchanger will have two fluids flowing through continuously. The glass tube are sealed individually into ptfe tube sheet with special ptfe sockets and packing. Put rather simply, there are two fluids of different temperatures in the cooling operation, one being the.
In heat exchanger of heat exchanger is the shellandtube type. The steam or vapour illustrated in grey enters through one. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higherpressure applications. Whru is a heat exchanger that recovers heat from a hot gas stream while transferring it to a working medium, typically water or oils. Shell and tube heat exchangers are the most widely used heat exchanger type in a number of different industries. Heat exchangers 73 individual thermal resistances of the system. The heat exchanger design and structure varies a lot depending on the application where they are used and the heat exchange media involved. Unlike plate or shell and tube type heat exchanger it has an indirect mode of heat transfer. Shell and tube heat exchanger on sales of page 2 quality. Home hvac heat exchangers explained shell and tube heat exchanger working principle explained. Tube sheets are used to hold these heat exchanger tubes firmly in place. Principles of heat exchangers simplified heat exchanger concepts heat exchangers work because heat naturally flows from higher temperature to lower temperatures. Tetra pak tubular heat exchanger cmp, multitube for products with a very high pulp or fibre content. Shell and tube heat exchanger a shell and tube heat exchanger is a class of heat exchanger.
It utilizes a bundle of tubes through which one of the. Understanding shell and tube heat exchangers flodraulic group. Tetra pak tubular heat exchanger cc, concentric tubes for processing viscous and particulate food. Tubular heat exchangers shell and tube heat exchangers. The fluid in the tube will typically be the important fluid, the fluid you are trying to heat or cool. The training course on various heat exchanger types has been developed to assist in heat exchanger maintenance, operation and repair. Shell and tube heat exchanger shell tube heat exchanger.
The liquid to be heated or the heating, are totally seperated from each other with plates. To design a heat exchanger, it is necessary to have certain data, such as the process flow rate, the temperature and the physical properties of products therefore, the main process data to design a. Che245 lab report solteq concentric tube heat exchanger unit he. Working principle of shell and tupe heat exchanger. The animation above shows the working principle of an alfa laval gasketed plateandframe heat exchanger when used as a steam heater. The shellandtube heat exchanger type is among the most popular heat exchangers used. A hot fluid shown in red flows through a tube coiled inside a larger shell through which another, colder fluid shown in blue is running in the opposite direction.
Shell and tube heat exchangers are one of the most popular types of. Shell and tube heat exchangers are, simply put, a device that puts two working fluids in thermal contact using tubes housed within an outer cylindrical shell. Plate type heat exchanger working principle, working. Shellandtube heat exchanger britannica encyclopedia britannica. Diagram showing how a simple shell and tube heat exchanger works. Heat transfer equipments can be classified in various types. The classic example of a heat exchanger is found in an internal combustion engine in which a circulating fluid known as engine coolant flows through radiator coils and air flows past the. Combining each of these resistances in series gives. The essential principle of a heat exchanger is that it transfers the heat. Other articles where shellandtube heat exchanger is discussed. Che245 lab report solteq concentric tube heat exchanger.