Energy impact assessment for IEQ policy of air-conditioned offices

Energy impact assessment for air-conditioned commercial buildings in Hong Kong

Brief:

This study evaluates energy implications and the corresponding CO₂ generation of some indoor environmental policies for air-conditioned office buildings in the subtropical climate. In particular, the thermal energy consumption in an air-conditioned office building was evaluated by the heat gains through the building fabric, the transport of outdoor fresh air for ventilation, and the heat generated by the occupant and equipment in the space. With the Monte-Carlo sampling technique and the parameters from the existing office building stocks of Hong Kong, the energy consumption profiles of air-conditioned office buildings in Hong Kong were evaluated. Energy consumption profiles were simulated for certain indoor environmental quality (IEQ) policies on indoor air temperature and CO₂ concentration settings in the offices, with other building parameters remaining unchanged. The impact assessment and the regression models described in this study may be useful for evaluation of energy performances of IEQ policies. They will also be useful for the promotion of energy-saving measures in air-conditioned office buildings in Hong Kong.

This work forms part of an MEng dissertation. Student: K.L. Shi (MEng)

Related Publications:

Wong LT, Mui KW, Shi KL, 2008. Energy impact of indoor environmental policy for air-conditioned offices of Hong Kong, Energy Policy 36(2) 714-721.

Wong LT, Mui KW, Shi KL, Hui PS, 2008. An energy impact assessment of indoor air quality acceptance for air-conditioned offices, Energy Conversion Management 49(10) 2815-2819.