A method for reducing simulation performance gap using fourier filtering

The simulation performance gap is a discrepancy between simulated and actual performance of a building, occurring as result of differences between theoretical values in the simulation model and actual properties of and conditions in and around the building. It can be eliminated by a process of calibration of the simulation model if the simulated building exists and is being monitored. As simulations are primarily conducted in the design stage when the building does not yet exist, the calibration is not possible. This paper reports on a method for transferring results of calibration from an existing to a non-existing buildings of a similar type using Fourier filters, thus reducing the performance gap, and discusses advantages and limitations of the approach.