Publicação
Desenvolvimento de um método simplificado para cálculo de caudal de ar novo a partir de medições de concentração de CO2 em edifícios de serviços
| Resumo: | In contemporary societies, in which most time is spent inside buildings, assuring a good indoor environment is of the most importance, once it is proven to affect the occupants’ thermal comfort and health, affecting their productivity. Factors such as deficient ventilation and the generation of contaminants, chemical and biological, inside buildings, produce health risks, mostly just temporary effects (Sick Building Syndrome) but sometimes causing more lasting effects. Thus, it is necessary that the HVAC systems installed assure not only the desired climate but also the ventilation air rates needed to dilute the pollutants generated inside the buildings. One of the pollutants whose generation is mostly dependent on inside sources is the carbon dioxide gas (CO2). Therefore, although Indoor Air Quality (IAQ) depends on many other factors, through the measurement of the concentration of this gas it is possible to assess the HVAC’s system efficiency. This project has the goal of developing a simplified method that allows the calculation of the outdoor air rate introduced in the building, through the measurement of the carbon dioxide concentration inside it. This method shall allow a more prompt evaluation of the HVAC system installed in the building. |
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| Autores principais: | Silvestre, Ana Rita de Oliveira |
| Assunto: | Edifícios Dióxido de carbono Ventilação AVAC Qualidade ar interior Teses de mestrado - 2011 |
| Ano: | 2011 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | português |
| Origem: | Repositório da Universidade de Lisboa |
| Resumo: | In contemporary societies, in which most time is spent inside buildings, assuring a good indoor environment is of the most importance, once it is proven to affect the occupants’ thermal comfort and health, affecting their productivity. Factors such as deficient ventilation and the generation of contaminants, chemical and biological, inside buildings, produce health risks, mostly just temporary effects (Sick Building Syndrome) but sometimes causing more lasting effects. Thus, it is necessary that the HVAC systems installed assure not only the desired climate but also the ventilation air rates needed to dilute the pollutants generated inside the buildings. One of the pollutants whose generation is mostly dependent on inside sources is the carbon dioxide gas (CO2). Therefore, although Indoor Air Quality (IAQ) depends on many other factors, through the measurement of the concentration of this gas it is possible to assess the HVAC’s system efficiency. This project has the goal of developing a simplified method that allows the calculation of the outdoor air rate introduced in the building, through the measurement of the carbon dioxide concentration inside it. This method shall allow a more prompt evaluation of the HVAC system installed in the building. |
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