Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
Journal of Enhanced Heat Transfer
Impact-faktor: 1.406 5-jähriger Impact-Faktor: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Druckformat: 1065-5131
ISSN Online: 1563-5074

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

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v1.i3.90
pages 275-285

High Performance Augmentations for Refrigeration System Evaporators and Condensers

John R. Thome
Laboratory of Heat and Mass Transfer (LTCM), Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 9, CH-1015 Lausanne, Switzerland

ABSTRAKT

Parametric studies were undertaken for heat transfer augmentations utilized in evaporators and condensers in refrigeration, air-conditioning and heat pump systems. For chilled water flowing inside tubes, ribbed tubes are shown to provide the best thermal to hydraulic performance ratio. For chilled water flowing over tube bundles, external integral low finned tubes are shown to be very advantageous relative to plain tubes. For refrigerant R 134a, the simulations show that certain microfinned tube geometries are superior for intube evaporation and condensation. For flooded ammonia chillers, external low finned tubes for augmenting boiling and internal fins for augmenting heat transfer to the chilled water are shown to be very effective.


Articles with similar content:

Development of a Compact Heat Exchanger consisting of tubes and interconnecting struts forming parallel plate arrays: Part I Flow Visualisation
ICHMT DIGITAL LIBRARY ONLINE, Vol.12, 2005, issue
B. B. Dally, C. B. Allison
AN EXPERIMENTAL STUDY OF PLASTIC HEAT EXCHANGERS APPLICABLE FOR DEHUMIDIFICATION
International Heat Transfer Conference 16, Vol.13, 2018, issue
Ming-Chang Lu, Mohammed Amer, Chi-Chuan Wang, Miao-Ru Chen
ENHANCEMENT OF HEAT TRANSFER DURING EVAPORATION OF R407C BY PROVIDING DISCRETE STRUCTURES INSIDE TUBE
Journal of Enhanced Heat Transfer, Vol.27, 2020, issue 6
Darshan M B, Arup Kumar Das, Ravi Kumar
PERFORMANCE ESTIMATION OF A CONDENSER AT OFF-DESIGN CONDITIONS USING A TWO-PHASE FLOW DIAGRAM
International Heat Transfer Conference 7, Vol.15, 1982, issue
J. A. R. Parise, W. G. Cartwright
LINEAR STABILITY ANALYSIS OF THE DISCRETIZED ONE-DIMENSIONAL TWO-FLUID MODEL EQUATIONS FOR SLUG CAPTURING IN VERTICAL FLOW
Multiphase Science and Technology, Vol.27, 2015, issue 2-4
Francesco Galleni, Raad I. Issa