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Impact of perforated solar screens on daylight availability and low energy use in offices

Impact of perforated solar screens on daylight availability and low energy use in offices In this paper, daylighting and thermal analysis are carried out in synergy to ensure the best overall performance of perforated solar screens (PSS) used on fully glazed offices facing towards South, East, West and North, placed in Seville. The study has been conceived by applying multiple orthogonal arrays to account oriented transverse comparisons of several PSS design variables, with respect to their impact on the Daylight Availability (DAv) and the annual energy demand (lighting plus cooling and heating). Daylighting and irradiation calculations are carried out with DIVA-for-Grasshopper. The irradiation simulations are needed for simplifying the PSS complex geometries in order to perform thermal calculations with EnergyPlus. The results revealed that the use of PSS on façades is effective for enhancing DAv at the four orientations, in terms of the actual fully daylit area and the useful daylight illuminances. In comparison with fully and partly glazed façades, PSS increased the electrical lighting use but they considerably decreased the cooling energy use. Since lighting resulted lower and less influencing than cooling, PSS effectively reduced the total annual energy consumption. Therefore, optimizing daylighting through PSS can lead to low energy projects. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Building Energy Research Taylor & Francis

Impact of perforated solar screens on daylight availability and low energy use in offices

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Impact of perforated solar screens on daylight availability and low energy use in offices

Abstract

In this paper, daylighting and thermal analysis are carried out in synergy to ensure the best overall performance of perforated solar screens (PSS) used on fully glazed offices facing towards South, East, West and North, placed in Seville. The study has been conceived by applying multiple orthogonal arrays to account oriented transverse comparisons of several PSS design variables, with respect to their impact on the Daylight Availability (DAv) and the annual energy demand (lighting plus...
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Publisher
Taylor & Francis
Copyright
© 2018 Informa UK Limited, trading as Taylor & Francis Group
ISSN
1756-2201
eISSN
1751-2549
DOI
10.1080/17512549.2018.1550439
Publisher site
See Article on Publisher Site

Abstract

In this paper, daylighting and thermal analysis are carried out in synergy to ensure the best overall performance of perforated solar screens (PSS) used on fully glazed offices facing towards South, East, West and North, placed in Seville. The study has been conceived by applying multiple orthogonal arrays to account oriented transverse comparisons of several PSS design variables, with respect to their impact on the Daylight Availability (DAv) and the annual energy demand (lighting plus cooling and heating). Daylighting and irradiation calculations are carried out with DIVA-for-Grasshopper. The irradiation simulations are needed for simplifying the PSS complex geometries in order to perform thermal calculations with EnergyPlus. The results revealed that the use of PSS on façades is effective for enhancing DAv at the four orientations, in terms of the actual fully daylit area and the useful daylight illuminances. In comparison with fully and partly glazed façades, PSS increased the electrical lighting use but they considerably decreased the cooling energy use. Since lighting resulted lower and less influencing than cooling, PSS effectively reduced the total annual energy consumption. Therefore, optimizing daylighting through PSS can lead to low energy projects.

Journal

Advances in Building Energy Research – Taylor & Francis

Published: Jan 2, 2021

Keywords: Daylight; dynamic simulations; low energy projects; multiple orthogonal arrays; perforated solar screens

References

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