A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design of Curtain Wall Facades for Improved Solar Potential and Daylight Distribution
The current paper presents a study of the effect of equatorial-facing façade design on energy performance of multi-story buildings. Façade surfaces are assumed to be in the form of curtain walls, allowing for freedom in the design of surface geometry. The design parameters that are investigated include geometrical aspects, solar technologies integrated in the facades and the surface ratio and positioning of windows. The study is carried out for Montréal area (45° N). Preliminary results indicate that some designs are significantly more advantageous than a flat south facing façade. Electricity generation of PV system integrated in 50% of the surface of a façade shaped as folded platecan be increased by up to 56% as compared to theflat south facing façade, which serves as reference. When PV coverage is increased to 2/3 of the façade surface area, electricity generation can reach a factor of 2.8 of the reference. Heating and cooling loads are affected as well by the design. The increase of heating load can be mitigated by increasing the transparency of PV panels. The design of folded plates can affect daylighting level and distribution. While the total useful daylighting hours are not significantly compromised, for some configurations, the number of hours with large illuminanceis significantly reduced, as compared to the reference case.
Design of Curtain Wall Facades for Improved Solar Potential and Daylight Distribution
The current paper presents a study of the effect of equatorial-facing façade design on energy performance of multi-story buildings. Façade surfaces are assumed to be in the form of curtain walls, allowing for freedom in the design of surface geometry. The design parameters that are investigated include geometrical aspects, solar technologies integrated in the facades and the surface ratio and positioning of windows. The study is carried out for Montréal area (45° N). Preliminary results indicate that some designs are significantly more advantageous than a flat south facing façade. Electricity generation of PV system integrated in 50% of the surface of a façade shaped as folded platecan be increased by up to 56% as compared to theflat south facing façade, which serves as reference. When PV coverage is increased to 2/3 of the façade surface area, electricity generation can reach a factor of 2.8 of the reference. Heating and cooling loads are affected as well by the design. The increase of heating load can be mitigated by increasing the transparency of PV panels. The design of folded plates can affect daylighting level and distribution. While the total useful daylighting hours are not significantly compromised, for some configurations, the number of hours with large illuminanceis significantly reduced, as compared to the reference case.
Design of Curtain Wall Facades for Improved Solar Potential and Daylight Distribution
Hachem, Caroline (author) / Athienitis, Andreas (author) / Fazio, Paul (author)
2014
10 Seiten, 15 Quellen
Conference paper
English
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