Building calibration for IAQ management |
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Authors: | KW Mui WT Chan |
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Affiliation: | Department of Building Services Engineering, The Hong Kong Polytechnic University, HKSAR, Hong Kong |
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Abstract: | Demand Control System (DCV) is designed to optimise the energy consumption with respect to the demand of outdoor air quantity based on the number of people indoors. However, if significant indoor pollutant sources exist, which is not a function of the number of people, the DCV may cause the indoor air quality to be unacceptable. This paper discusses a procedure of calibrating the building in respect of managing the indoor air quality. The objective is to set the minimum fresh air quantity which is a function of the indoor pollutant concentrations rather than metabolic carbon dioxide. Radon is used as an example because it is a common pollutant embedded in the building materials of high-rise buildings in Hong Kong. This paper also presents a year-round record of the indoor air quality in a typical high-rise building which is very useful for building indoor air quality (IAQ) design. |
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Keywords: | Demand control ventilation systems Building calibration Pollutants inventory Indoor air quality (IAQ) Radon gas |
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