Next Article in Journal
LED Lighting for Indoor Sports Facilities: Can Its Use Be Considered as Sustainable Solution from a Techno-Economic Standpoint?
Next Article in Special Issue
Determination of the Optimal Tilt Angle of Solar Collectors for Different Climates of China
Previous Article in Journal
Comparative Advantage of Maize- and Grass-Silage Based Feedstock for Biogas Production with Respect to Greenhouse Gas Mitigation
Previous Article in Special Issue
The Effects of Roof and Wall Insulation on the Energy Costs of Low Income Housing in Mexico
Article Menu

Export Article

Open AccessArticle
Sustainability 2016, 8(7), 615; doi:10.3390/su8070615

The Development and Full-Scale Experimental Validation of an Optimal Water Treatment Solution in Improving Chiller Performances

Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editors: Jinqing Peng, Lin Lu and Fu Xiao
Received: 7 April 2016 / Revised: 16 June 2016 / Accepted: 23 June 2016 / Published: 30 June 2016
(This article belongs to the Special Issue Renewable Energy Applications and Energy Saving in Buildings)
View Full-Text   |   Download PDF [8466 KB, uploaded 30 June 2016]   |  

Abstract

An optimal solution, in combining physical and chemical water treatment methods, has been developed. This method uses a high voltage capacitance based (HVCB) electrodes, coupled with biocides to form a sustainable solution in improving chiller plant performances. In this study, the industrial full-scale tests, instead of laboratory tests, have been conducted on chiller plants at the size of 5000 RT to 10,000 RT cooling capacities under commercial operation for more than two years. The experimental results indicated that the condenser approach temperatures can be maintained at below 1 °C for over two years. It has been validated that the coefficient of performance (COP) of a chiller can be improved by over 5% by implementing this solution. Every 1 °C reduction in condenser approach temperature can yield approximately 3% increase on chiller COP, which warrants its future application potential in the HVAC industry, where Ta can degrade by 1 °C every three to six months. The solution developed in this study could also reduce chemical dosages and conserve makeup water substantially and is more environment friendly. View Full-Text
Keywords: optimal water treatment solution; high voltage capacitance based electrodes; condenser approach temperature; chiller COP; chemical dosage reduction; makeup water conservation; HVAC industry application optimal water treatment solution; high voltage capacitance based electrodes; condenser approach temperature; chiller COP; chemical dosage reduction; makeup water conservation; HVAC industry application
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Chiang, C.-Y.; Yang, R.; Yang, K.-H. The Development and Full-Scale Experimental Validation of an Optimal Water Treatment Solution in Improving Chiller Performances. Sustainability 2016, 8, 615.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sustainability EISSN 2071-1050 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top