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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Heat Transfer Research
Импакт фактор: 0.404 5-летний Импакт фактор: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 51, 2020 Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v36.i4.50
pages 311-318

Enhancement of Heat Transfer in a Short Rectangular Channel with Substantial Deflection of Inlet Velocity from Axial Direction

Ronald S. Bunker
GE Global Research, General Electric, Niskayuna, NY, USA
Mikhail Ya. Belenkiy
JSC "I. I. Polzunov Central Boiler and Turbine Institute" (NPO TsKTI), St. Petersburg, 195257, Russia
Mikhail Gotovskii
I. I. Polzunov Scientific and Development Association on Research and Design of Power Equipment (NPO TsKTI), 3/6 Atamanskaya Str., St. Petersburg, 191167, Russia
B. S. Fokin
JSC "I. I. Polzunov Central Boiler and Turbine Institute" (NPO TsKTI), St. Petersburg, 195257, Russia

Краткое описание

Experimental and theoretical investigation of heat transfer and hydrodynamics of a heated short rectangular channel which is an element of a header system with a plane rectangular header of constant cross section is carried out. Depending on the position of the inlet into the channel relative to the inlet section of the supply header, the flow rate and flow inlet angle as well as the total velocity of the flow change in the header, which is associated with the presence of a transit flow through the supply header. The indicated factors exert a substantial influence on the heat transfer coefficients in the channel. For a more correct comparison of experimental data with the case of an axial inlet, heat transfer in the test channel was also determined in the absence of the transit flow, i.e., practically for the case of an axial inlet. On maximum deviation of the flow inlet angle from the axial one, an increase in the rate of heat transfer in comparison with the axial inlet was from 60% to 100%.