WSEAS Transactions on Environment and Development
Print ISSN: 1790-5079, E-ISSN: 2224-3496
Volume 10, 2014
The Indoor Climate and Energy Consumption of Educational Buildings
Authors: , ,
Abstract: The indoor climate of classrooms influences both students’ comfort as well as learning performance. Four renovated schoolhouses with mechanical ventilation and a kindergarten with natural ventilation have been investigated. The study paid special attention to the carbon dioxide concentration in classrooms and the indoor air quality in group rooms in the kindergarten. The cumulative duration graph clearly shows high levels of carbon dioxide in the classrooms and in the kindergarten playrooms. Also data on the energy consumption of the school buildings and its reduction potential are presented. Air change in classrooms was determined by the change in carbon dioxide levels. The survey showed that in most classrooms the carbon dioxide level at the end of a class exceeds the normal level several times. At the same time, ventilation in classrooms is very much lower than normal. The situation is due to the poor economic situation of schools, as well as the modest level and bad adjustability of HVAC. In naturally ventilated kindergarten playrooms the CO2 concentration ranges to 2,500 ppm.
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Keywords: Indoor climate, CO2 level in classrooms and kindergartens, cumulative graph, air change, specific energy consumption
Pages: 366-373
WSEAS Transactions on Environment and Development, ISSN / E-ISSN: 1790-5079 / 2224-3496, Volume 10, 2014, Art. #39