New method for constructing weight factors of typical meteorological years

Huang Jin, Li Honglian and Lü Kailin

2021.02.23

The typical meteorological year (TMY) is a basic parameter for building energy consumption simulation, which directly affects building energy consumption simulation and building energy saving design. At present, in the generation method of the TMY, the unified weight factor is used to select the meteorological parameters of the TMY, which fails to reflect the different influence of meteorological parameters in different regions. According to the Sandia national laboratory method, uses the random weighting method to verify the significant impact of weight on the selection results of the TMY. Simulates the energy consumption of typical buildings in Beijing year by year by means of EnergyPlus software. Analyses the correlation between different types of meteorological parameters and building energy consumption. Determines a new weight factor by quantitative analysis. The results show that the TMY selected with the new weight is closer to the long-term average value than that of the old weight.