Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/45934
Title: Dissatisfaction among tropically-acclimatized subjects with ventilatoin applied to the facial region
Authors: Tham, K.W. 
Gong, N.
Keywords: Dissatisfaction
Local air movement
Personalized ventilation
Reasons for dissatisfaction
Tropically-acclimatized
Issue Date: 2007
Source: Tham, K.W.,Gong, N. (2007). Dissatisfaction among tropically-acclimatized subjects with ventilatoin applied to the facial region. IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment 1 : 303-307. ScholarBank@NUS Repository.
Abstract: Personalized Ventilation (PV) has been shown to improve inhaled air quality recently. However, it may lead to dissatisfaction such as draft due to personalized air applied locally to the facial region, or stuffiness due to inadequate air supply. This study aims to identify some reasons for the dissatisfaction among tropically acclimatized people through a systematically experimental design. In this study 24 subjects were subjected to a series of random facial exposure to local air movement each of 15 minutes duration in a well-controlled indoor air quality chamber. The exposures comprise various combinations of PV supply temperatures (21 to 26°C), ambient temperatures (23.5 and 26°C) and PV air supply velocities (0.15 to 0.9 m/s). The study shows that among those who are dissatisfied and preferred less air movement, about 85% attributed their dissatisfaction to draft or perception of too much air movement. Drying effects contributed only secondarily to the dissatisfaction (less than 10%). Among those who are dissatisfied and preferred more air movement, more than 70% attributed the dissatisfaction to insufficient cooling or perception of too little air movement. Air quality accounted for less than 5% of the dissatisfaction. However, the reasons for dissatisfaction of a significant portion (about 20%) remain unidentified.
Source Title: IAQVEC 2007 Proceedings - 6th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Sustainable Built Environment
URI: http://scholarbank.nus.edu.sg/handle/10635/45934
ISBN: 9784861630705
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

78
checked on Dec 9, 2017

Google ScholarTM

Check


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