1. CO2 concentration in naturally ventilated classrooms located in different climates—Measurements and simulations.
- Author
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Krawczyk, D.A., Rodero, A., Gładyszewska-Fiedoruk, K., and Gajewski, A.
- Subjects
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CARBON dioxide mitigation , *SCHOOL buildings & the environment , *ENERGY consumption of buildings , *ENERGY conservation in buildings , *COMPUTER simulation - Abstract
The paper shows the results of measurements of carbon dioxide concentrations conducted in the school buildings located in two different climates: Białystok (Poland) and Belmez/Córdoba (Spain). CO 2 concentration in first 45 min met requirements of regulations, but with medium occupation of places in classrooms, then the recommended values were excided. We developed a model for CO 2 level estimation. This model allowed us to simulated the CO 2 concentration for full occupation of classrooms in both countries. In these cases CO 2 concentration would exceed maximum value (1000 ppm) during the first hour. Furthermore required air change rates were calculated: for actual occupation they should be in a range 2.5–5 h −1 to maintain IDA2 and carbon dioxide concentration below 1000 ppm, while in case of full occupation even 6–9 h −1 . Finally, surveys of student satisfaction were performed in situ during the measurements of CO 2 level to obtain the dependence of student comfort perception on this concentration. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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