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Temperature and ventilation effects on the work performance of office workers (study of a call centre in the tropics)

K.W. Tham, H.C Willem, S.C. Sekhar, D.P. Wyon, P. Wargocki, P.O. Fanger, 2003
ventilation | ventilation rate | hot climate | temperature
Bibliographic info: Healthy Buildings 2003 - Proceedings 7th International Conference (7th-11th December 2003) - National University of Singapore - Vol. 3, pp 280-286, 2 Fig., 2 Tab., 11 Ref.
Languages: English

This paper presents findings from a recent call centre study conducted in an air-conditionedoffice in the Tropics. The effects of temperature and outdoor air supply rate, each kept at twoset points within currently acceptable limits, were explored in a 2 2 balanced experimentaldesign over a 9-week period. The results indicate that both a slightly cooler thermalenvironment and improved indoor air quality improve performance by reducing average callduration. Temperature and outdoor air supply rate were synergistically related to one anotherin affecting operator performance (P < 0.062). Performance improved by 4.9% (P < 0.05)when the air temperature was decreased from 24.5 to 22.5C at the lower outdoor air supplyrate (9.8 l/s/p) and improved by 8.8% (P < 0.04) when the outdoor air supply rate wasincreased to 22.7 l/s/p at the higher air temperature. These outdoor air supply rates are basedon actual occupancy.


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