Flow-induced vibration in heat exchangers
WebOct 2, 2024 · The gas-dynamic and heat-exchange behaviours of air flows in gas-dynamic systems have a significant impact on the efficiency and environmental performance of most technical equipment (heat engines, power plants, heat exchangers, etc.). Therefore, it is a relevant task to obtain reliable experimental data and physical laws on the influence of … WebDec 1, 1974 · This paper discusses the appropriate scaling factors for the modeling of the fluid-mechanical interaction of complex structures. The possible mechanisms of flow-excited vibration are described, and scaling parameters are derived from considerations of the mechanical and fluid systems. The paper is particularly concerned with the flow-induced …
Flow-induced vibration in heat exchangers
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WebPrevent flow-induced vibration in heat exchangers. New technology can be used in existing tube bundles to enable higher flowrates without risk of tube damage. Optimization of an existing process plant sometimes referred to as revamp or debottlenecking, can result in increased flowrates and higher velocities through the existing facilities ... WebMar 19, 2024 · The flow-induced vibration (FIV) is regarded as major problem in the heat exchangers (HE) of power plants, petroleum refineries, chemical plants, nuclear reactors, etc. A typical cross-flow HE transfers the heat between an internal fluid flowing through the tubes and an external fluid flowing across the tubes.
WebXvib® performs flow-induced vibration analysis of a single tube in a heat exchanger bundle. The program uses a rigorous structural analysis approach to calculate the tube’s … WebJan 1, 2024 · There are three main mechanisms that account for flow-induced vibrations in heat exchangers. These mechanisms depend on the flow conditions and the structure of the tubes. They are broadly classified as (a) turbulent buffeting, (b) Strouhal periodicity, and (c) fluidelastic instability (Weaver and Fitzpatrick, 1988). These mechanisms arise from ...
WebCompact Heat Exchangers - Oct 28 2024 ... flow-flex tubular, wide gap, twin plate, double wall, 2 graphite, and welded--and associated improvements addresses global and national standards and codes analyzes flow-induced vibration and mechanical design of shell-and-tube Hes explores a wide spectrum of materials for HEs, corrosion behavior, and ... WebFeb 1, 2010 · Heat transfer enhancement is achieved by flow-induced vibration in elastic tube bundles heat exchangers. For a further understanding of heat transfer enhancement mechanism and tube structure optimization, it is of importance to study the vibration characteristics of fluid-structure interaction of tube bundles. The finite element method is …
WebMay 1, 1982 · Flow induced vibration tests using water as the shell side medium were conducted on a shell and tube exchanger with single segmental baffles and various tube …
WebDec 31, 2024 · Heat exchangers are extensively applied in the chemical, engine, petroleum, power, and food industries. The thermal resistance in a heat exchanger is mainly dominated by the gas side [].The generation of longitudinal vortices by vortex generators (VG) is an effective method for enhancing the gas-side performance with relatively low … shy in other languagesWebFeb 2, 2011 · 65902. Vibration of tubes in heat exchangers is an important limiting factor in heat exchanger operation. The vibration is caused by … shy in other termsWeb@article{osti_4220121, title = {FLOW-INDUCED NOISE IN HEAT EXCHANGERS}, author = {Putnam, A A}, abstractNote = {Noise or vibration problems in heat exchangers may be encountered in those instances when a natural acoustic frequency of the exchanger in the direction normal to the flow direction and tube length is close to the frequency … shy in past tenseWebOct 7, 2008 · Abstract. a b s t r a c t The flow-induced vibration in heat exchanger is usually considered as a detrimental factor for causing the heat exchanger damage and is strictly prevented from its ... the paw club menuWebOct 1, 2013 · Conical spiral tube bundles are widely used in enhancing the heat transfer via the flow-induced vibration in heat exchangers. The shell side flow-induced vibration of the conical spiral tube bundle is experimentally investigated in this paper. The experiment table was built and the operational modes, the vibration parameters of the tube bundle … shy in sign languageWebOct 5, 2014 · The prediction of flow rates at which the vibration-induced instability takes place in tubular heat exchangers due to cross flow is of major importance to the … the paw brandonWebThe possible mechanisms of flow-excited vibration are described, and scaling parameters are derived from considerations of the mechanical and fluid systems. The paper is particularly concerned with the flow-induced vibrations of banks of cylinders in single phase, high Reynolds number, turbulent, cross flow, as occur for example in light water ... shy intj