Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30951
Title: Optimization of water-cooled chiller system with load-based speed control
Authors: Yu, FW
Chan, KT 
Keywords: Coefficient of performance
Electricity consumption
Operating costs
Water-cooled chiller
Issue Date: 2008
Publisher: Pergamon Press
Source: Applied energy, 2008, v. 85, no. 10, p. 931-950 How to cite?
Journal: Applied energy 
Abstract: This study investigates the energy performance of chiller and cooling tower systems integrated with variable condenser water flow and optimal speed control for tower fans and condenser water pumps. Thermodynamic-behaviour chiller and cooling tower models were developed to assess how different control methods of cooling towers and condenser water pumps influence the trade-off between the chiller power, pump power, fan power and water consumption under various operating conditions. Load-based speed control is introduced for the tower fans and condenser water pumps to achieve optimum system performance. With regard to an example chiller system serving an office building, the optimal control coupled with variable condenser water flow could reduce the annual system electricity use by 5.3% and operating cost by 4.9% relative to the equivalent system using constant speed fans and pumps with a fixed set point for cooling water temperature control.
URI: http://hdl.handle.net/10397/30951
ISSN: 0306-2619
EISSN: 1872-9118
DOI: 10.1016/j.apenergy.2008.02.008
Appears in Collections:Journal/Magazine Article

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

SCOPUSTM   
Citations

48
Last Week
0
Last month
0
Citations as of Oct 10, 2017

WEB OF SCIENCETM
Citations

41
Last Week
0
Last month
1
Citations as of Sep 30, 2017

Page view(s)

29
Last Week
1
Last month
Checked on Oct 15, 2017

Google ScholarTM

Check

Altmetric



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