Comparison of Sensitivity Analysis Methods in Building Energy Assessment

Song Yang, Wei Tian, Eduard Cubi, QingXin Meng, YunLiang Liu, Lai Wei
2016 Procedia Engineering  
Sensitivity analysis is an important tool in building energy assessment to determine the key factors influencing energy use or carbon emissions for buildings. This research is focused on comparing the characteristics of four global sensitivity analysis: SRC (standardized regression coefficient), Morris design, extended FAST (Fourier Amplitude Sensitivity Test) and TGP (treed Gaussian process) method. A retail building located at Harbin (China) is used as a case study to demonstrate the
more » ... s and drawbacks for these four methods. The results indicate that the TGP method (one of meta-modelling approaches) is the best choice in terms of both accuracy and computationally cost. Note that the TGP method needs more time to calculate the sensitivity index although it needs only moderate time for running building energy models. At least two fundamentally different methods for sensitivity analysis are recommended to be performed to provide more robust results in building energy assessment.
doi:10.1016/j.proeng.2016.06.369 fatcat:keut4jrrbfeatptwxggjwat7km