The effects of moderately raised classroom temperatures and classroom ventilation rate on the performance of schoolwork by children.
Author(s) : WARGOCKI P., WYON D. P.
Type of article: Article
Summary
Two independent field intervention experiments were carried out in school classrooms in late summer (in 2004 and 2005). The air temperature was manipulated by either operating or idling split cooling units installed for the purpose. In one of these experiments, the outdoor air supply rate was also manipulated. The conditions were established for one week at a time in a blind crossover design with repeated measures on two classes of 10- to 12-year-old children. Six to eight exercises exemplifying different aspects of schoolwork (numerical and language-based) were performed as part of normal lessons. Pupils indicated their environmental perceptions and the intensity of any symptoms on visual analogue scales. Their thermal sensation changed from slightly too warm to neutral, and the performance of two numerical and two language-based tests was significantly improved when the temperature was reduced from 25 to 20°C. When the outdoor air supply rate was increased from 5.2 to 9.6 L/s (11.0 to 20.3 cfm) per person, their performance of four numerical exercises improved significantly, confirming the results of previously reported experiments in the same series. The above improvements were mainly in terms of the speed at which tasks were performed, with negligible effects on error rate. Most school classrooms worldwide experience raised air temperatures during increased thermal loads, e.g., in warm weather; these results show that providing some means of avoiding elevated temperatures would improve educational attainment.
Details
- Original title: The effects of moderately raised classroom temperatures and classroom ventilation rate on the performance of schoolwork by children.
- Record ID : 2007-2761
- Languages: English
- Source: HVAC&R Research - vol. 13 - n. 2
- Publication date: 2007/03
Links
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Indexing
- Themes: Indoor air quality
- Keywords: Ventilation; Temperature; Air quality; Parameter; School; Flow rate; Thermal comfort; Air conditioning
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The effects of outdoor air supply rate and supp...
- Author(s) : WARGOCKI P., WYON D. P.
- Date : 2007/03
- Languages : English
- Source: HVAC&R Research - vol. 13 - n. 2
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A study on the effect of the airflow rate of th...
- Author(s) : NOH K. C., HAN C. W., OH M. D.
- Date : 2007/06/10
- Languages : English
- Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
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Ventilation system type and the resulting class...
- Author(s) : GAO J., WARGOCKI P., WANG Y.
- Date : 2013/06/16
- Languages : English
- Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
- Formats : PDF
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The effect of duct input height on temperature ...
- Author(s) : AWAD A. S.
- Date : 2015/03/08
- Languages : English
- Source: 5th Jordanian IIR International Conference on Refrigeration and Air Conditioning. Proceedings: Aqaba, Jordan, March 8-10, 2015.
- Formats : PDF
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Ventilation and building related symptoms.
- Author(s) : AIRAKSINEN M., JÄRNSTRÖM H., KOVANEN K., et al.
- Date : 2007/06/10
- Languages : English
- Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
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