Green office building retrofit optimization strategy based on building energy efficiency-predicted mean vote

Green retrofitting of existing building is an effective measure to reduce building energy consumption and improve indoor thermal comfort, but different retrofitting options would achieve different performance. Proposes the conception of building energy efficiency-predicted mean vote (BEE-PMV) and establishes the green retrofit evaluation model based on BEE-PMV. Taking an office building in Beijing as an example, discusses the coupling relationship between building energy consumption and indoor thermal comfort by numerical simulation. The results indicate that the ratio of window to wall, cooling and heating design temperature all have great effect on building energy consumption and indoor thermal comfort, and that the BEE-PMV evaluation model can be used to provide a basis for overall optimization and retrofitting strategy of existing building green retrofitting project and avoid the uncertainty of retrofitting effect.