Autor(es)

Neves, Leticia O. ; Franceschini, Paula B. ; Schweiker, Marcel

• Tipo de documento: Artigo Científico
• Fonte: BUILDING AND ENVIRONMENT; v. 283, p. 13-pg., 2025-09-01.

Resumo

School classrooms often present poor indoor air quality (IAQ) conditions, especially if naturally ventilated, when the building's thermal and IAQ performance is directly associated to the occupant behaviour (OB) regarding window operation. Therefore, research efforts have been directed at understanding which parameters are the main triggers for occupants' actions towards window operation, pointing out thermal comfort parameters as the main action triggers, while IAQ remains a secondary restriction. Yet, most of the published research studies have been carried out considering isolated objectives. Giving this scenario, this paper aims at developing a comprehensive study of the relationship between thermal comfort and perceived IAQ and their association with OB, considering a simultaneous multi-input and output parameters interaction. Hence, we analysed potential conflicts between thermal comfort and IAQ, regarding triggers for manual operation of windows in naturally ventilated classrooms, and identified optimal situations of balance between both drivers. The methodological approach included data collection and statistical analysis (phase 1), OB predictive modelling (phase 2), building performance simulation and multi-objective optimization within a multi-sensory setting (phase 3). The findings reveal variations of up to 42.5 % in CO2 levels and 9 % in discomfort hours between actual and optimized occupant behaviours. This suggests that adjusting OB can significantly improve indoor conditions, leading to enhanced thermal comfort and IAQ. The results also indicate that optimal window operation and occupancy strategies differ among schools, highlighting the need for context-specific analyses. Tailoring these strategies to each setting is crucial for improving classroom design and operational efficiency. (AU)

• Processo FAPESP: 21/11903-8 - Análise do comportamento dos usuários em edifícios escolares naturalmente ventilados visando a otimização das condições de conforto térmico e qualidade do ar interno
• Beneficiário: Leticia de Oliveira Neves
• Modalidade de apoio: Bolsas no Exterior - Pesquisa
• Processo FAPESP: 19/13474-7 - Avaliação do impacto do comportamento dos usuários no desempenho energético dos edifícios escolares com certificação AQUA
• Beneficiário: Paula Brumer Franceschini
• Modalidade de apoio: Bolsas no Brasil - Doutorado