Model calibration for building energy efficiency simulation
Giorgio Mustafaraj
Dashamir Marini
Andrea Costa
Marcus Keane
2134/32221
https://repository.lboro.ac.uk/articles/journal_contribution/Model_calibration_for_building_energy_efficiency_simulation/9457925
This research work deals with an Environmental Research Institute (ERI) building where an underfloor heating system and natural ventilation are the main systems used to maintain comfort condition
throughout 80% of the building areas. Firstly, this work involved developing a 3D model relating to building architecture, occupancy & HVAC operation. Secondly, the calibration methodology, which consists of two levels, was then applied in order to insure accuracy and reduce the likelihood of errors. To further
improve the accuracy of calibration a historical weather data file related to year 2011, was created from the on-site local weather station of ERI building. After applying the second level of calibration process, the values of Mean bias Error (MBE) and Cumulative Variation of Root Mean Squared Error (CV(RMSE)) on hourly based analysis for heat pump electricity consumption varied within the following ranges: (MBE)hourly from -5.6% to 7.5% and CV(RMSE)hourly from 7.3% to 25.1%. Finally, the building was simulated with EnergyPlus to identify further possibilities of energy savings supplied by a water to water heat pump
to underfloor heating system. It found that electricity consumption savings from the heat pump can vary between 20% and 27% on monthly bases.
2018-03-15 12:00:39
Building energy simulation
Energy efficiency
Natural ventilation
Underfloor heating
Heat pump water to water
Model calibration
Built Environment and Design not elsewhere classified
Economics