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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.v40.i5.80
pages 455-472

Experimental Research of Heat Transfer from an In-Line Tube Bundle to a Vertical Foam Flow

Jonas Gylys
Department of Thermal and Nuclear Energy, Kaunas University of Technology, K.Donelaièio str. 20, LT-44239 Kaunas, Lithuania
Tadas Zdankus
Energy Technology Institute, Kaunas University of Technology, K. Donelaicio 20-212 LK, LT-44239 Kaunas, Lithuania
Irena Gabrielaitiene
Energy Technology Institute, Kaunas University of Technology, Lithuania
Stasys Sinkunas
Department of Thermal and Nuclear Energy, Kaunas University of Technology, Donelaicio 20, LT-44239 Kaunas, Lithuania

Краткое описание

Development of heat exchangers with low consumption of primary energy resources and the enhanced heat transfer rates is the aim of our investigation. There are some ways of heat exchangers development. Usage of advanced coolants with the most suitable characteristics is one of the best and promising ways. We estimated that usage of aqueous foam as a coolant results in a relatively large heat transfer rate due to a small mass flow rate of such coolant. The main task of this work was to experimentally investigate the intensity of heat transfer from an in-line tube bundle to vertical upward and downward (after a 180-deg turning) foam flows. The influence of the foam flow parameters, such as flow velocity, direction of flow, volumetric void fraction of foam, and liquid drainage from foam, on the in-line tube bundle heat transfer intensity was determined. The influence of the tube position in the bundle on heat transfer intensity was investigated as well. The results of our experimental investigation are presented and analyzed in this paper. The results of investigation could enable one to create a modern and economic heat exchanger with simple and safe operation using a two-phase foam flow. It must be a compact, light heat exchanger with a relatively large intensity of heat transfer.


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