Indoor and Built Environment

 

Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Click here to register and gain free access

Sign In to gain access to subscriptions and/or personal tools.
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via ISI Web of Science (2)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Lin, Z.
Right arrow Articles by Fong, K. F.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
Indoor and Built Environment, Vol. 14, No. 2, 103-115 (2005)
DOI: 10.1177/1420326X05052563

Effect of Air Supply Temperature on the Performance of Displacement Ventilation (Part I) - Thermal Comfort

Zhang Lin

Division of Building Science and Technology, City University of Hong Kong, bsjzl{at}cityu.edu.hk

T. T. Chow

Division of Building Science and Technology, City University of Hong Kong

C. F. Tsang

Division of Building Science and Technology, City University of Hong Kong

L. S. Chan

Division of Building Science and Technology, City University of Hong Kong

K. F. Fong

Division of Building Science and Technology, City University of Hong Kong

The effect of the air supply temperature on the performance of a displacement ventilation (DV) system has been investigated. The study looks into the case of a typical office building in Hong Kong, under local thermal environment and airflow conditions. These are characterised by the high cooling load density, which commonly occurs in Hong Kong. The lower supply temperatures were found to result in higher draft effects, yet increasing temperatures leads to an increase in the predicted percentage of dissatisfied people (PPD). The DV system was found to provide acceptable thermal comfort at certain air supply temperatures. The levels of PPD could be marginal should the parameters of the system not be optimised.

Key Words: Displacement ventilation • Thermal comfort • Air velocity • Percentage of dissatisfied people (PD) • Predicted percentage of dissatisfied people (PPD) • Air supply temperature


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?