Paper Conference

Proceedings of eSim 2014: 8th Conference of IBPSA-Canada


Impact of Future Climate Change on the Overheating of Canadian Housing Retrofitted to the PassiveHaus Standard A Case Study

Ali Sehizadeh, Hua Ge

Abstract: This paper investigates the impact of future climate changes on the indoor climate of a typical Canadian single-family house retrofitted to the PassiveHaus standard. The indoor thermal comfort of this house in terms of summer overheating risk is evaluated using current and future weather files in 2020, 2050 and 2080. The future weather files are generated using General Circulation Models (GCM) HadCM3 with the A2 emission scenario presented by the Intergovernmental Panel on Climate Change (IPCC). The simulations are carried out using IES [Ve] software. Generally, it is observed that the risk of overheating for a typical Canadian house upgraded to the PassiveHaus standard under free running conditions would significantly increase from 2020 onward. Results also show that the cooling load of the PassiveHaus retrofitted option is slightly higher than Quebec energy code (QEC) compliance option. However, the total energy consumption of the PassiveHaus option seems to be significantly lower than that of the QEC base case. Analyses also show that the application of the proposed shading systems in Montreal would not reduce the total energy consumption over future years. Keywords: Building Envelope Retrofits, Future Climate, Overheating, Energy Simulations 1-
Pages: 434 - 447