Paper Conference

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


Effectiveness of a Ventilated Concrete Slab on an Air Source Heat Pump Performance in Cold Climate

Navid Ekrami, Raghad S. Kamel, Alan S. Fung

Abstract: This article studies the effect of a ventilated concrete slab (VCS) as thermal storage in buildings. The VCS is coupled with a combined building integrated photovoltaic/thermal (BIPV/T) collector and air source heat pump (ASHP). Design criteria of the air channels inside the slab are discussed considering the mass flow rate of air and size of channels. A TRNSYS model of BIPV/T systems was used to estimate potential thermal generation of the panels in the winter. Generated thermal energy was stored in the VCS and released to the ASHP inlet during night. It is shown that using VCS thermal storage to preheat the outdoor air as an inlet flow to the air source heat pump increases the coefficient of performance (COP) of the system. Consequently, power consumption decreases during night. This thermal storage improves performance of both PV/T and ASHP without utilizing water or other thermal storage systems/materials.
Pages: 296 - 307