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Authors
Abstract(s)
Este estudo visa avaliar as condições ambientais nas residências dos estudantes
de ensino superior em Bragança, focando no conforto térmico e na qualidade do
ar interno. A pesquisa foi conduzida em três moradias ao longo de sete meses,
utilizando sensores para monitorar os parâmetros ambientais e questionários
semanais para captar a percepção dos moradores. Para a coleta de dados,
foram instalados sistemas de monitorização que incluíam sensores de
temperatura do ar, humidade relativa, monóxido de carbono (CO) e material
particulado (PM10). Os moradores responderam a questionários abordando sua
percepção de conforto térmico e qualidade do ar, com os dados coletados sendo
analisados estatisticamente e comparados com dados climáticos externos. Os
resultados indicaram que, durante o verão, a temperatura do ar interno das
residências manteve-se dentro da faixa de conforto térmico (20-27°c). No
entanto, com a chegada do inverno, a temperatura do ar frequentemente caiu
abaixo dessa faixa, resultando em maior desconforto térmico relatado pelos
moradores. A humidade relativa geralmente permaneceu dentro dos limites de
conforto, embora ocasionalmente tenha se desviado, exigindo intervenções dos
moradores. Em termos de qualidade do ar, houve um aumento significativo na
concentração de PM10 a partir do outono, frequentemente ultrapassando os
limites estabelecidos pela organização mundial da saúde (OMS). As
concentrações de CO também aumentaram em duas das três residências
durante o mesmo período. Conclui-se que melhorias são necessárias nas
estratégias de aquecimento das residências para manter as condições de
conforto térmico durante o inverno. Recomenda-se, ainda, a instalação de
sensores adicionais para medir a velocidade do ar e a concentração de CO2,
visando uma análise mais precisa das condições ambientais internas.
This study aims to evaluate the environmental conditions in the residences of higher education students in Bragança, focusing on thermal comfort and indoor air quality. The research was conducted in three residences over seven months, using sensors to monitor environmental parameters and weekly questionnaires to capture residents' perceptions. For data collection, monitoring systems were installed, including sensors for temperature, relative humidity, carbon monoxide (CO), and particulate matter (PM10). Residents responded to questionnaires about their perception of thermal comfort and air quality, with the collected data statistically analyzed and compared with external climatic data. The results indicated that, during summer, the internal temperature of the residences remained within the thermal comfort range (20-27°C). However, with the arrival of winter, the temperature frequently fell below this range, resulting in increased thermal discomfort reported by residents. Relative humidity generally remained within comfort limits, although occasionally deviated, requiring interventions from residents. In terms of air quality, there was a significant increase in PM10 concentration from autumn, often exceeding the limits set by the World Health Organization (WHO). CO concentrations also increased in two of the three residences during the same period. It is concluded that improvements are needed in the heating strategies of the residences to maintain thermal comfort conditions during winter. Additionally, it is recommended to install additional sensors to measure air velocity and CO2 concentration for a more accurate analysis of internal environmental conditions.
This study aims to evaluate the environmental conditions in the residences of higher education students in Bragança, focusing on thermal comfort and indoor air quality. The research was conducted in three residences over seven months, using sensors to monitor environmental parameters and weekly questionnaires to capture residents' perceptions. For data collection, monitoring systems were installed, including sensors for temperature, relative humidity, carbon monoxide (CO), and particulate matter (PM10). Residents responded to questionnaires about their perception of thermal comfort and air quality, with the collected data statistically analyzed and compared with external climatic data. The results indicated that, during summer, the internal temperature of the residences remained within the thermal comfort range (20-27°C). However, with the arrival of winter, the temperature frequently fell below this range, resulting in increased thermal discomfort reported by residents. Relative humidity generally remained within comfort limits, although occasionally deviated, requiring interventions from residents. In terms of air quality, there was a significant increase in PM10 concentration from autumn, often exceeding the limits set by the World Health Organization (WHO). CO concentrations also increased in two of the three residences during the same period. It is concluded that improvements are needed in the heating strategies of the residences to maintain thermal comfort conditions during winter. Additionally, it is recommended to install additional sensors to measure air velocity and CO2 concentration for a more accurate analysis of internal environmental conditions.
Description
Keywords
Conforto térmico Qualidade do ar Interior Sensores