C12 - Calibration of a Building Energy Simulation Using a Multi-step Method ✓ Most Recent

https://doi.org/10.63044/eb24ibr12

Building energy simulation (BES) has been widely used in assessing building performance. The determination of suitable input parameters for BES is complex, which can result in a significant discrepancy when representing the actual building energy behavior. BES calibration is a process that involves reconciling building energy model results with measured data by tuning the input parameters. A multi-stage calibration method is proposed. The methodology consists of variance-based sensitivity analysis to determine the most influential parameters. The optimization calibration stage is performed using genetic algorithm. The calibration uses one room of an existing low-energy building to match the hourly measured temperature over two consecutive months. To ensure the accuracy of the calibration results, the calibrated energy model of the room is validated for an additional period. The results align with the calibration acceptance criteria outlined in ASHRAE Guideline 14.