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School ventilation - gymnasiums in primary schools.

Eian P K, Borresen B A, Oie L, Sorensen B R, 1999
gymnasium | carbon dioxide | ventilation system | school
Bibliographic info: 20th AIVC and Indoor Air 99 Conference "Ventilation and indoor air quality in buildings", Edinburgh, Scotland, 9-13 August 1999
Languages: English

The main objective of this study was to determine the ventilation demand for a gymnasium inthe primary school based on verified metabolic rate.Norwegian guidelines recommend 6.0met as the activity level to be used when calculating the outdoor air flow rate in a gymnasium.Younger pupils have a lower body mass and metabolic capacity than adults, and their demandfor ventilation is therefore lower. The metabolic rate has been assessed by measuring thepupils emission of the dominating bioeffluent CO2 during intensive gymnastic activity. Theemission of CO2 was found to be 41 l/s per pupil which corresponds to an equivalentmetabolic rate of 2.5. When allowing a maximum Predicted Percentage Dissatisfied (PPD) of30% this gives an outdoor air flow of 17 l/s per pupil as a set point value, which is less thanhalf of the 44 l/s per pupil based on design recommendations from the Norwegian guidelines.


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