Paper Conference

Proceedings of eSim 2016: 9th Conference of IBPSA-Canada


Natural ventilation of attics coupled with BIPV/T in arctic climates

Ahmad Kayello, Andreas Athienitis, Hua Ge

Abstract: Ventilation can be important in maintaining proper attic hygrothermal conditions. In Arctic climates, however, fine blowing snow can infiltrate and accumulate in the attic space, causing serious moisture problems. By using filter membranes along a ventilation path behind the cladding of a building, attics can be ventilated without the risk of snow infiltration. To determine the attic ventilation rates under such a configuration, CFD (Computational Fluid Dynamics) simulation is used. Typical wind speeds found in Iqaluit, Nunavut are used to develop the exterior boundary conditions in the model. The effects of two types of cladding are compared: conventional cladding and BIPV/T (Building-Integrated Photovoltaic and Thermal) cladding, which generates electricity while preheating air for the attic and the building as needed. The results from this study will be used to evaluate the hygrothermal performance of attics in the Arctic with various ventilation strategies.
Pages: 511 - 521