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As mentioned, baffles deal with the concern of support and fluid direction in heat exchangers. In this way it is vital that they are spaced correctly at installation. The minimum baffle spacing is the greater of 50.8 mm or one fifth of the inner shell diameter. The maximum baffle spacing is
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In a household stoves like Handölkassetten and similar stoves a baffle is used to prevent the gas from going directly up in the chimney and possibly causing a chimney fire and direct the gas towards the front of the oven before it continues upwards into the chimney. In this case the baffle helps
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sets out guidelines. There are also segments with a "no tubes in window" design that affects the acceptable spacing within the design. An important design consideration is that no recirculation zones or dead spots form – both of which are counterproductive to effective heat transfer.
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The baffles prevent the rotational flow without affecting radial or longitudinal flow. The tank is provided with baffles which prevent swirling and vortex formation. Except in very large tanks, four(4) baffles are
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Baffles are an integral part of the shell and tube heat exchanger design. A baffle is designed to support tube bundles and direct the flow of
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are flow-directing or obstructing vanes or panels used to direct a flow of liquid or gas. It is used in some household stoves and in some
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Implementation of baffles is decided on the basis of size, cost and their ability to lend support to the tube bundles and direct flow:
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In a static mixer, baffles are used to minimize the tangential component of velocity which causes vortex formation, and thus promotes
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for maximum efficiency. Baffle design and tolerances for heat exchangers are discussed in the standards of the
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In a chemical reactor, baffles are often attached to the interior walls to promote mixing and thus increase
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Direct shell-side fluid flow along the tube field. This increases fluid velocity and the effective
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by Hugo A. Jakobsen, published in 2008 by
Springer-Verlag in Berlin Heidelberg, pp. 681–683
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increase the efficiency of the stove as more heat leaves the gas before it exits.
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Impingement
Baffles (used for protecting bundle when entrance velocity is high)
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Hold tubes in position (preventing sagging), both in production and operation
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Deresonating (detuning) baffles used to reduce tube vibration(Anish Apw)
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The main roles of a baffle in a shell and tube heat exchanger are to:
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Chemical reactor modeling: multiphase reactive flows
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Longitudinal Flow
Baffles (used in a two-pass shell)
269:(Editors) Perry, R.H. and Green, D.W. (Oct, 2007)
261:Tubular Exchanger Manufacturers Association, Inc.
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173:dependent on material and size of tubes. The
175:Tubular Exchanger Manufacturers Association
76:Tubular Exchanger Manufacturers Association
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296:Usyd Chemical Engineering Department
271:Perry's Chemical Engineers' Handbook
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27:Fluid-flow-directing vane or panel
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240:"Tältkamin rund el rektangulär"
217:edited by SPE Staff pp. 163–164
195:"BaffelplĂĄt till WAMSLER K144S"
294:Heat Transfer Lectures 4&5
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57:shell and tube heat exchangers
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292:Professor J. Kavanagh (2009)
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104:co-efficient of the exchanger
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283:Wolverine Tube Inc, (2008)
41:Cross-sectional diagram of
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215:SPE/ANTEC 1999 Proceedings
55:vessels (tanks), such as
160:Support/Blanking baffles
285:Heat Transfer Data Book
168:Installation of baffles
121:chemical reaction rates
93:Prevent the effects of
273:(8th ed.) McGraw-Hill
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43:stirred tank reactor
242:. 20 February 2008
53:industrial process
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18:Baffle (in vessel)
61:chemical reactors
16:(Redirected from
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137:Types of baffles
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119:and possibly
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244:. Retrieved
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198:. Retrieved
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287:Available
182:References
304:Category
78:(TEMA).
246:22 July
200:22 July
132:placed.
49:Baffles
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110:mixing
72:fluids
63:, and
275:ISBN
248:2021
202:2021
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20:)
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