A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Co-optimisation of indoor environmental quality and energy consumption within urban office buildings
Highlights Study developed a model for IEQ and energy consumption within an office building. Particle Number and CO2 with consideration for thermal comfort, were investigated. Free-cooling with outdoor air filtration operation can improve indoor air quality. Can also save building energy during milder weather. The integrated model will be useful tool for simulating operation of building HVAC.
Abstract This study aimed to develop a multi-component model that can be used to maximise indoor environmental quality inside mechanically ventilated office buildings, while minimising energy usage. The integrated model, which was developed and validated from fieldwork data, was employed to assess the potential improvement of indoor air quality and energy saving under different ventilation conditions in typical air-conditioned office buildings in the subtropical city of Brisbane, Australia. When operating the ventilation system under predicted optimal conditions of indoor environmental quality and energy conservation and using outdoor air filtration, average indoor particle number (PN) concentration decreased by as much as 77%, while indoor CO2 concentration and energy consumption were not significantly different compared to the normal summer time operating conditions. Benefits of operating the system with this algorithm were most pronounced during the Brisbane's mild winter. In terms of indoor air quality, average indoor PN and CO2 concentrations decreased by 48% and 24%, respectively, while potential energy savings due to free cooling went as high as 108% of the normal winter time operating conditions. The application of such a model to the operation of ventilation systems can help to significantly improve indoor air quality and energy conservation in air-conditioned office buildings.
Co-optimisation of indoor environmental quality and energy consumption within urban office buildings
Highlights Study developed a model for IEQ and energy consumption within an office building. Particle Number and CO2 with consideration for thermal comfort, were investigated. Free-cooling with outdoor air filtration operation can improve indoor air quality. Can also save building energy during milder weather. The integrated model will be useful tool for simulating operation of building HVAC.
Abstract This study aimed to develop a multi-component model that can be used to maximise indoor environmental quality inside mechanically ventilated office buildings, while minimising energy usage. The integrated model, which was developed and validated from fieldwork data, was employed to assess the potential improvement of indoor air quality and energy saving under different ventilation conditions in typical air-conditioned office buildings in the subtropical city of Brisbane, Australia. When operating the ventilation system under predicted optimal conditions of indoor environmental quality and energy conservation and using outdoor air filtration, average indoor particle number (PN) concentration decreased by as much as 77%, while indoor CO2 concentration and energy consumption were not significantly different compared to the normal summer time operating conditions. Benefits of operating the system with this algorithm were most pronounced during the Brisbane's mild winter. In terms of indoor air quality, average indoor PN and CO2 concentrations decreased by 48% and 24%, respectively, while potential energy savings due to free cooling went as high as 108% of the normal winter time operating conditions. The application of such a model to the operation of ventilation systems can help to significantly improve indoor air quality and energy conservation in air-conditioned office buildings.
Co-optimisation of indoor environmental quality and energy consumption within urban office buildings
Quang, Tran Ngoc (author) / He, Congrong (author) / Knibbs, Luke D. (author) / de Dear, Richard (author) / Morawska, Lidia (author)
Energy and Buildings ; 85 ; 225-234
2014-09-11
10 pages
Article (Journal)
Electronic Resource
English
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