Paper Conference

Proceedings of eSim 2022: 12th Conference of IBPSA-Canada


Inverse model-based characterization of green roof thermal performance

Peter Alexander Gunn, H. Burak Gunay, Paul J. Van Geel
Department Civil and Environmental Engineering, Carleton University, Canada

Abstract: In this paper, we implement a resistor-capacitor (RC) model to characterize the thermal properties of the canopy and substrate of the green roof using an inverse modelling approach. The calibrated model is then evaluated based on its ability to predict hourly heat flux through the structural component of the green roof. Our results demonstrate a maximum root-mean-squared error of 0.84 W/m2 for hourly heat flux across five separate months: May through September 2016. Reductions in total monthly heat exchange were better predicted during May and September when a large fraction of heat exchange was heat loss through the roof. This abstract omits the opening statements provided in the paper draft.
Keywords: green roof, inverse modelling, thermal performance, heat exchange, resistor-capacitor model