A117 Domestic IEQ model

An evaluation model for indoor environmental quality (IEQ) acceptance in residential buildings

Brief:

The indoor environmental quality (IEQ) in residential buildings is examined from the prospect of an occupant’s acceptance in four aspects: thermal comfort, indoor air quality, noise level and illumination level. Based on the evaluations by 125 occupants living in 32 typical residential apartments in Hong Kong, we propose empirical expressions to approximate the overall IEQ acceptance with respect to four contributors, namely operative temperature, carbon dioxide concentration, equivalent noise level and illumination level, via a multivariate logistic regression model. A range of IEQ acceptances for regular residential conditions is determined and the dependence of the predicted overall IEQ acceptance on the variations of the contributors is discussed. The proposed overall IEQ acceptance can be used as a quantitative assessment criterion for similar residential environments where an occupant’s evaluation is expected.

Related topics:

IEQ model for air-conditioned offices

Calculator for IEQ in air-conditioned offices

Further information:

Lai ACK, Mui KW, Wong LT, Law LY, 2009. An evaluation model for indoor environmental quality (IEQ) acceptance in residential buildings, Energy and Buildings 41(9) 930-936.