Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30359
Title: Modelling of improved energy performance of air-cooled chillers with mist pre-cooling
Authors: Yu, FW
Chan, KT 
Keywords: Air-cooled chiller
Coefficient of performance
Electricity consumption
Water mist
Issue Date: 2009
Publisher: Elsevier Masson
Source: International journal of thermal sciences, 2009, v. 48, no. 4, p. 825-836 How to cite?
Journal: International journal of thermal sciences 
Abstract: Air-cooled chillers are widely used to provide cooling energy and yet pragmatic and simple energy efficient measures for them are still lacking. This paper considers how their coefficient of performance (COP) can be improved by using mist to pre-cool ambient air entering the condensers. The benefit of this application rests on the decrease of compressor power resulting from the reduced condenser air temperature with insignificant consumption of water and pump power associated with the mist generation. Based on a simulation analysis of an air-cooled screw chiller operating under head pressure control, applying such mist pre-cooling enables the COP to increase by up to 7.7%. Precise control of mist generation rate and integration with floating condensing temperature control are the major challenges of using a mist system to maximize electricity savings. The results of this study will prompt low-energy operation of existing air-cooled chillers working for various climatic conditions.
URI: http://hdl.handle.net/10397/30359
ISSN: 1290-0729
DOI: 10.1016/j.ijthermalsci.2008.06.016
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

13
Last Week
0
Last month
1
Citations as of Jul 15, 2017

WEB OF SCIENCETM
Citations

11
Last Week
0
Last month
0
Citations as of Jul 18, 2017

Page view(s)

28
Last Week
0
Last month
Checked on Jul 9, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.