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What is fouling in heat exchangers

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  What is fouling in heat exchangers?                    Contamination is the accumulation of unwanted material on the surfaces of the heat exchanger tubes. After a period of operation, the heat transfer surface of the heat exchanger can be covered with various deposits that occur in the fluid system. This layer is an additional resistance to heat flow and therefore reduces performance. Pollution factors are best determined based on experience with similar units in the same or similar service. If such information is not available, it may be necessary to publish data. The most comprehensive table on pollution factors is the one developed by TEMA, which is available from Ref. Contamination can occur through various mechanisms that work alone or in combination.  Corrosion:           Corrosion products such as rust can gradually build up on tube walls, resulting in ...
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What is fouling in heat exchangers? Part-2

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  What is fouling in heat exchangers? Crystallization:       Crystallization usually occurs in streams of cooling water containing dissolved sulphates and carbonates. As the solubility of these salts decreases as the temperature rises, it tends to precipitate on the heat transfer surfaces when the water is heated and forms scale. This type of pollution can be reduced by limiting the temperature of the exhaust water to a maximum of 110–125◦F. heat exchanger , heat exchanger fouling, crystallization fouling, shell and tube heat exchanger pollution, heat transfer heat exchanger problems, pollution types, scaling Dissolution: Some organic compounds can decompose when heated or come in contact with a hot surface and form carbonaceous deposits, such as coke and tar. In cracking furnaces, the goal is the partial decomposition of the hydrocarbon feedstock and the formation of coke is an undesirable but inevitable result. read more..... Heat Exchanger Manufactu...
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Reactor Pressure VesselManufacturer In India

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  Reactor Pressure VesselManufacturer In India Welcome to the high-pressure equipment company reactor and pressure vessel webinar our webinar will cover all the various designs that are offered and we will provide information to make it easy to determine which reactor and pressure vessel would be best suited for your application the reactor selection guide shows the various closure designs that are available hip offers  reactors and pressure vessel that use o-rings metal gasket and metal to metal seals as well as various materials of construction pressure and temperature requirements to determine which design would be best suited for the application moving forward we will cover the various design and there capabilities the OC series provides a simple reliable closure which is easy to assemble and disassemble 316 stainless steel material of construction is standard for the body and the cover and bn nitrite o-rings are provided which make this design suitable for both gas and li...
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