Please use this identifier to cite or link to this item:
|Title:||Subjective study of thermal acceptability of novel enhanced displacement ventilation system and implication of occupants' personal control|
|Authors:||Sun, W. |
|Keywords:||Enhanced displacement ventilation|
|Citation:||Sun, W., Cheong, K.W.D., Melikov, A.K. (2012). Subjective study of thermal acceptability of novel enhanced displacement ventilation system and implication of occupants' personal control. Building and Environment 57 : 49-57. ScholarBank@NUS Repository. https://doi.org/10.1016/j.buildenv.2012.04.004|
|Abstract:||A novel air distribution principle of cooler air near the floor level being propelled upward via four fans mounted at each corner of a chair was developed to enhance the performance of conventional displacement ventilation (DV) system. Experiments were conducted in a well-controlled climate chamber with DV and constant heat load at different supply air temperatures, namely 20, 22, and 24 °C and room air temperatures, 22, 24, and 26 °C. Subjective assessments were carried out with 32 tropically-acclimatized college students who were given the choice to adjust the fan speed. Subjects' thermal comfort and the implication of personal usage pattern of the enhanced DV system were studied. The results revealed that at the ambient temperature of 26 °C, subjects preferred higher air movement and were satisfied with the cooling provided by the fans. However, the subjects felt cooler at the waists at room air temperatures of 22 and 24 °C when the fans were in operation. It was also found that the Whole Body Thermal Sensation (WBTS) reported by the subjects was correlated with the Local Thermal Sensation (LTS) at the waist, the arms, the calf and the feet when the novel DV system was employed. An expression which allows predicting WBTS based on the LTS was developed. Recommendations for fan speed at different room air temperatures were derived. © 2012 Elsevier Ltd.|
|Source Title:||Building and Environment|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 22, 2019
WEB OF SCIENCETM
checked on Mar 5, 2019
checked on Mar 10, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.