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Comprehensive study of heat transfer enhancement in tubular heat exchangers

✍ Scribed by E.K. Kalinin; G.A. Dreitser; N.V. Paramonov; A.S. Myakochin; A.I. Tikhonov; S.G. Zakirov; E.S. Levin; L.S. Yanovsky

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
781 KB
Volume
4
Category
Article
ISSN
0894-1777

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✦ Synopsis

IIAt the Moscow Aviation Institute a highly effective method was developed to enhance heat transfer in tubular heat exchangers, and comprehensive studies were made of its effectiveness when applied to gas and liquid flow in tubes, circular channels, and in-flow tube bundles over a wide range of performance parameters as well as to boiling and condensation of heat carriers. The essence of the method is as follows. Equidistant annular grooves are rolled on the outer surface of a heat transfer tube. In this case, annular smooth-configuration diaphragms are formed on the inner tube surface. Annular grooves and diaphragms turbulize the flow in a wall layer and provide heat transfer enhancement outside and inside the tubes.

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