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Improving thermal comfort in naturally ventilated university buildings

Conference Paper


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Abstract


  • A substantial fraction of Australian university buildings are naturally ventilated. These

    buildings consume a significant amount of energy and frequently suffer from overheating

    problems, resulting in poor indoor thermal comfort. This paper presents an investigation

    on the effectiveness of a range of energy conservation measures (ECMs) that can

    potentially be used to enhance energy performance and thermal comfort of these

    buildings. The ECMs considered in this study include information technology (IT)

    equipment and lighting upgrades, and measures focussed on occupant behaviour

    change. The effectiveness of each ECM was evaluated through modelling of a case study

    building at the University of Wollongong using the building energy simulation software

    DesignBuilderâ„¢. The thermal comfort of occupants was evaluated using the adaptive

    thermal comfort standards ASHRAE Standard 55 and EN15251. Results indicated that

    both adaptive thermal comfort standards can be useful in providing a clear picture of

    occupant comfort conditions. It was found that office IT equipment and lighting upgrades

    can potentially result in 50% savings in total office energy consumption, which in turn led

    to a reduction of up to 50% in overheating hours, compared to the base case condition. It

    was also found that 40% energy savings and a 50% reduction in overheating hours could

    be achieved through modelled occupant behaviour changes (i.e. turning off IT equipment

    and lighting as far as possible and night-purging in summer).

Publication Date


  • 2012

Citation


  • Ledo, L., Ma, Z. & Cooper, P. (2012). Improving thermal comfort in naturally ventilated university buildings. 12th Annual Australasian Campuses Towards Sustainability Conference 2012 (pp. 2-12). Australia: Australasian Campuses Towards Sustainability.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8177&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5245

Start Page


  • 2

End Page


  • 12

Place Of Publication


  • Australia

Abstract


  • A substantial fraction of Australian university buildings are naturally ventilated. These

    buildings consume a significant amount of energy and frequently suffer from overheating

    problems, resulting in poor indoor thermal comfort. This paper presents an investigation

    on the effectiveness of a range of energy conservation measures (ECMs) that can

    potentially be used to enhance energy performance and thermal comfort of these

    buildings. The ECMs considered in this study include information technology (IT)

    equipment and lighting upgrades, and measures focussed on occupant behaviour

    change. The effectiveness of each ECM was evaluated through modelling of a case study

    building at the University of Wollongong using the building energy simulation software

    DesignBuilderâ„¢. The thermal comfort of occupants was evaluated using the adaptive

    thermal comfort standards ASHRAE Standard 55 and EN15251. Results indicated that

    both adaptive thermal comfort standards can be useful in providing a clear picture of

    occupant comfort conditions. It was found that office IT equipment and lighting upgrades

    can potentially result in 50% savings in total office energy consumption, which in turn led

    to a reduction of up to 50% in overheating hours, compared to the base case condition. It

    was also found that 40% energy savings and a 50% reduction in overheating hours could

    be achieved through modelled occupant behaviour changes (i.e. turning off IT equipment

    and lighting as far as possible and night-purging in summer).

Publication Date


  • 2012

Citation


  • Ledo, L., Ma, Z. & Cooper, P. (2012). Improving thermal comfort in naturally ventilated university buildings. 12th Annual Australasian Campuses Towards Sustainability Conference 2012 (pp. 2-12). Australia: Australasian Campuses Towards Sustainability.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=8177&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5245

Start Page


  • 2

End Page


  • 12

Place Of Publication


  • Australia