Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ventilation measures for heritage office buildings in temperate climate for improvement of energy performance and IEQ
Abstract Heritage buildings are usually culturally protected as well as naturally ventilated. With natural ventilation it is difficult to control the airflow, which depends on the temperature outdoors as well as the wind. This causes issues with the thermal comfort and the indoor air quality. In this study, status determinations were conducted for 12 heritage buildings with offices, across Sweden. Field measurements on temperature, relative humidity, CO2, and air change rates in the indoor climate, together with a questionnaire with the occupants, confirmed these issues in these buildings. In addition, for two of the buildings, field measurements were used together with building energy performance simulations in order to determine the impact of two different non-invasive ventilation measures on the indoor environmental quality and the energy use. A mechanical ventilation system with heat recovery, hidden inside a chimneypot, was shown to reduce CO2 concentrations and potentially reduce the energy use by up to 39 kWh∙m−2 (or 47%). Dampers for the reduction of the ACRs after-hours, installed in the pathways for the natural airflow through chimneypots, were shown to potentially reduce the energy use by up to 16 kWh∙m−2 (or 12%).
Ventilation measures for heritage office buildings in temperate climate for improvement of energy performance and IEQ
Abstract Heritage buildings are usually culturally protected as well as naturally ventilated. With natural ventilation it is difficult to control the airflow, which depends on the temperature outdoors as well as the wind. This causes issues with the thermal comfort and the indoor air quality. In this study, status determinations were conducted for 12 heritage buildings with offices, across Sweden. Field measurements on temperature, relative humidity, CO2, and air change rates in the indoor climate, together with a questionnaire with the occupants, confirmed these issues in these buildings. In addition, for two of the buildings, field measurements were used together with building energy performance simulations in order to determine the impact of two different non-invasive ventilation measures on the indoor environmental quality and the energy use. A mechanical ventilation system with heat recovery, hidden inside a chimneypot, was shown to reduce CO2 concentrations and potentially reduce the energy use by up to 39 kWh∙m−2 (or 47%). Dampers for the reduction of the ACRs after-hours, installed in the pathways for the natural airflow through chimneypots, were shown to potentially reduce the energy use by up to 16 kWh∙m−2 (or 12%).
Ventilation measures for heritage office buildings in temperate climate for improvement of energy performance and IEQ
Abdul Hamid, Akram (Autor:in) / Johansson, Dennis (Autor:in) / Bagge, Hans (Autor:in)
Energy and Buildings ; 211
24.01.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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