Occupant perception of thermal comfort in sleep environments in Qatar
Other Title(s)
تصور السكان للراحة الحرارية في بيئات النوم في قطر
Joint Authors
Indraganti, Madhavi
Kutty, Farsana
Ali, Rim
al-Nuaymi, Luluah
al-Badr, Saidat
al-Mulla, Maryam Adil
Source
The Journal of Engineering Research
Issue
Vol. 18, Issue 2 (31 Dec. 2021), pp.137-145, 9 p.
Publisher
Sultan Qaboos University College of Engineering
Publication Date
2021-12-31
Country of Publication
Oman
No. of Pages
9
Main Subjects
Abstract EN
A thermal comfort field survey in sleep environments was conducted in Qatar during winter and spring seasons.
A total of 833 sets of objective and subjective thermal and sleep quality responses before going to bed and after getting up were collected.
The subjects felt cooler sensations most of the time, preferred warmer sensations and the sleep environments are considered comfortable overall.
Griffiths comfort temperature (Tc) was 24.3 ̊C and 20.2 ̊C in free-running (FR) and air-conditioned (AC) modes respectively.
Subjects used air- conditioner (AC)s adaptively in heating mode in winter.
In 82.7% of cases in (AC) mode, the comfort temperature was below the lower limit of the international standard.
Subjects enjoyed quality sleep in Qatar.
Overall, self- declared sleep quality improved with thermal acceptability.
Depth of sleep was higher in AC mode (mean = 3.86).
On the other hand, the mean global Pittsburgh Sleep Quality Index (PSQI) score was high in general (mean = 10.7), indicating good quality sleep, and significantly so in free-running mode (mean = 11) than in AC mode (mean = 10.4).
It increased, as subjects liked their AC systems.
This study suggests that overcooling in spring can be avoided by increasing air movement without compromising sleep quality.
American Psychological Association (APA)
Indraganti, Madhavi& Kutty, Farsana& Ali, Rim& al-Nuaymi, Luluah& al-Badr, Saidat& al-Mulla, Maryam Adil. 2021. Occupant perception of thermal comfort in sleep environments in Qatar. The Journal of Engineering Research،Vol. 18, no. 2, pp.137-145.
https://search.emarefa.net/detail/BIM-1380157
Modern Language Association (MLA)
Indraganti, Madhavi…[et al.]. Occupant perception of thermal comfort in sleep environments in Qatar. The Journal of Engineering Research Vol. 18, no. 2 (2021), pp.137-145.
https://search.emarefa.net/detail/BIM-1380157
American Medical Association (AMA)
Indraganti, Madhavi& Kutty, Farsana& Ali, Rim& al-Nuaymi, Luluah& al-Badr, Saidat& al-Mulla, Maryam Adil. Occupant perception of thermal comfort in sleep environments in Qatar. The Journal of Engineering Research. 2021. Vol. 18, no. 2, pp.137-145.
https://search.emarefa.net/detail/BIM-1380157
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 144-145
Record ID
BIM-1380157