Measured and perceived IEQ under different ventilation strategies in Swedish classrooms
Paper in proceeding, 2022

Indoor environmental quality was assessed in Swedish primary school classrooms grouped into three categories based on the ventilation system: 1) natural or exhaust ventilation, 2) balanced mechanical ventilation systems with constant air volume (CAV), 3) balanced mechanical ventilation systems with variable air volume (VAV). Measurements of NO2, ozone, TVOC, formaldehyde, PM10, and PM2.5 and a questionnaire survey were conducted. The concentrations of pollutants were integrated into Indoor Air Pollution Index allowing the rank comparison of classrooms. Children’s perception scores were calculated based on the questionnaire responses. Naturally ventilated classrooms had higher level of air pollution. No significant differences in pollutant levels were observed between classrooms with CAV and VAV systems. The type of ventilation system affected the subjective assessment of indoor air quality; it was worst in naturally ventilated classrooms.

questionnaire

perception score

indoor air pollution index

Indoor air pollutants

Author

Blanka Cabovska

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Natalia Giraldo

Technical University of Denmark (DTU)

Despoina Teli

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Jan-Olof Dalenbäck

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Gabriel Beko

Technical University of Denmark (DTU)

Pawel Wargocki

Technical University of Denmark (DTU)

Lars Ekberg

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Sarka Langer

Chalmers, Architecture and Civil Engineering, Building Services Engineering

17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022

17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022
Kuopio, Finland,

Energy performance and indoor environment quality in school buildings

Swedish Energy Agency (46866-1), 2019-01-01 -- 2021-12-31.

Ways to Improving Indoor Environmental Quality in Swedish Schools

Formas (2017-01015), 2018-01-01 -- 2020-12-31.

Subject Categories

Architectural Engineering

Civil Engineering

Building Technologies

Areas of Advance

Energy

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Latest update

10/26/2023