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Comparative analysis of PV shading devices for energy performance and daylight in office buildings in Norway.

Number: pap. 481

Author(s) : HAASE M., KHEZRI N.

Summary

The comfort and energy demand of a building are influenced significantly by the glazed area of the facade. The glazed areas in a building are always challenging. Large glazing allows more daylight into the interior spaces while at the same time increasing heat gain and heat loss through the building's envelope. Shading devices are frequently used to prevent the building from overheating and increase thermal comfort. Shading devices are suitable elements for installing PV panels. The aim of this study is to evaluate the potential impact of different PV shading devices on the energy performance and daylight exposure of office buildings within the Nordic climate. This work is based on literature studies of relevant books and articles pertaining to these solar shading systems and an comparative analysis of different cases. The quantitative data for the comparative analysis is achieved by means of computer simulations using COMFEN, ECOTECT and PVsyst. The focus of this study is on external solar shading devices. Five different control strategies were analyzed: no shading devices, overhangs, movable vertical blinds, movable horizontal blinds and PV integrated glass. These shading systems where applied to south, west and east facing facades. Comparable assessments have been conducted in terms of window heat gains, energy consumption, energy production of PV cells, daylight and glare.

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Pages: 10 p.

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Details

  • Original title: Comparative analysis of PV shading devices for energy performance and daylight in office buildings in Norway.
  • Record ID : 30009228
  • Languages: English
  • Source: Clima 2013. 11th REHVA World Congress and 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings.
  • Publication date: 2013/06/16

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