Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.19/2499
Título: Experimental assessment of IAQ improvement in naturally ventilated educational buildings
Autor: Pinto, Manuel
Almeida, Ricardo
Pinho, Paulo
Lemos, Luís
Lanzinha, João
Palavras-chave: air change rate (ACH),
indoor air quality (IAQ)
indoor environmental quality (IEQ)
natural ventilation protocol
Data: 16-Dez-2014
Editora: IAHS
Resumo: Indoor environmental conditions in classrooms, in particular temperature and indoor air quality, influence students’ health, attitude and performance. In recent years several studies regarding indoor environmental quality of classrooms were published and natural ventilation proved to have great potential, particularly in southern European climate. This research aimed to evaluate indoor environmental conditions in 8 schools and to assess their improvement potential by simple natural ventilation strategies. Temperature, relative humidity and carbon dioxide concentration were measured in 32 classrooms. Ventilation performance of the classrooms was deeply characterized by tracer gas measurements of the air change rate assuming different windows related boundary conditions. A total of 110 tracer gas measurements were made. The complete characterization of the classrooms ventilation performance was relevant for the definition of the ventilation protocol since air change rate helped to pinpoint the best ventilation strategy for each case study. The results of the ventilation protocol implementation were very encouraging and, globally, a significant decrease on the CO2 concentration was observed without modifying the comfort conditions. This paper presents and discusses the main conclusions of the measurements campaign performed in the referred classrooms.
Peer review: yes
URI: http://hdl.handle.net/10400.19/2499
Aparece nas colecções:ESTGV - DA - Artigos publicados em revista científica
ESTGV - DEC - Artigos publicados em revista científica

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