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Air conditioner operation behaviour based on students' skin temperature in a classroom

Title
Air conditioner operation behaviour based on students' skin temperature in a classroom
Authors
Song G.-S.Lim J.-H.Ahn T.-K.
Ewha Authors
임재한
SCOPUS Author ID
임재한scopus
Issue Date
2012
Journal Title
Applied Ergonomics
ISSN
0003-6870JCR Link
Citation
vol. 43, no. 1, pp. 211 - 216
Indexed
SCI; SCIE; SSCI; SCOPUS WOS scopus
Abstract
A total of 25 college students participated in a study to determine when they would use an air conditioner during a lecture in a university classroom. The ambient temperature and relative humidity were measured 75 cm above the floor every minute. Skin temperatures were measured every minute at seven points, according to the recommendation of Hardy and Dubois. The average clothing insulation value (CLO) of subjects was 0.53 ± 0.07 CLO. The mean air velocity in the classroom was 0.13 ± 0.028 m/s. When the subjects turned the air conditioner both on and off, the average ambient temperatures, relative humidity and mean skin temperatures were 27.4 and 23.7 °C (p = 0.000), 40.9 and 40.0% (p = 0.528) and 32.7 and 32.2 °C (p = 0.024), respectively. When the status of the air conditioner was changed, the differences of skin temperatures in core body parts (head, abdomen and thigh) were not statistically significant. However, in the extremities (mid-lower arm, hand, shin and instep), the differences were statistically significant. Subjects preferred a fluctuating environment to a constant temperature condition. We found that a changing environment does not affect classroom study. © 2011 Elsevier Ltd and The Ergonomics Society.
DOI
10.1016/j.apergo.2011.05.009
Appears in Collections:
엘텍공과대학 > 건축공학전공 > Journal papers
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