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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Journal of Enhanced Heat Transfer
Импакт фактор: 1.406 5-летний Импакт фактор: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Печать: 1065-5131
ISSN Онлайн: 1563-5074

Выпуски:
Том 27, 2020 Том 26, 2019 Том 25, 2018 Том 24, 2017 Том 23, 2016 Том 22, 2015 Том 21, 2014 Том 20, 2013 Том 19, 2012 Том 18, 2011 Том 17, 2010 Том 16, 2009 Том 15, 2008 Том 14, 2007 Том 13, 2006 Том 12, 2005 Том 11, 2004 Том 10, 2003 Том 9, 2002 Том 8, 2001 Том 7, 2000 Том 6, 1999 Том 5, 1998 Том 4, 1997 Том 3, 1996 Том 2, 1995 Том 1, 1994

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v11.i4.140
pages 359-370

Performance Comparison Between Wire Coil and Twisted Tape Inserts

Karl Ponweiser
Vienna University of Technology, Institute of Applied Thermodynamics, Vienna, Austria
Wladimir Linzer
Institute of Thermal Engineering, Vienna University of Technology, Getreidemarkt 9, Vienna, A-1060, Austria
Marina Malinovec
Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia

Краткое описание

This work presents experimental results for heat transfer caused by convection of air in tubes with wire coil and twisted tape inserts. The characteristic parameters of the inserted tubes under investigation are length and position in the tube of the tested inserts. All tests are performed in a turbulent flow regime. Significantly higher inside heat transfer and friction factor coefficients than those of the smooth tube under same operating conditions have been observed. The performance of the wire coil and twisted tape inserts has been evaluated by three different criteria: maximizing heat transfer rate, minimizing heat exchanger size, and minimizing pumping power.


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