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- W3087016646 abstract "For daylighting optimisation, shading devices are increasingly operated automatically to overcome the limitations of manual operation. Automated daylighting systems need to be controlled to maximise the benefits of daylight on the aspects of redirecting sunlight, occupant comfort and energy consumption. However, the conventional control methods focused on minimising adverse impacts of daylight, but they might fail to maximise the positive impacts of daylight. They may often inaccurately predict the position or angle of slats of louvre or blinds, resulting in the undesirable blockage of useful daylight needed.This PhD thesis puts forward an innovative control method for automated louvres to optimise the utilisation of daylight. The proposed control method can not only protect occupants from sunlight glare but also maximise daylight penetration into deep-plan office rooms based on algorithmic methods. The proposed control method is designed to reflect the incident sunlight onto the ceiling, where the reflected light acts as a source of light for illumination. The reflective mirrored slats are individually angled but rotated with the same angle, i.e., they respond to the sun altitude angles parametrically in individual heliotropic response so that they can reflect sunlight to the corresponding positions on a ceiling. Accordingly, this process can exploit the optimal use of natural daylight and provide shading simultaneously. In addition to the louvres, windows are the most common architectural elements widely used in office buildings to protect them from climate changes. Advanced glazing and other fenestration systems can further improve daylighting performance.This PhD study proposes an advanced integrated daylighting system combining the automated louvre of parametrically-angled mirrored slats with electrochromic and thermochromic glazing, which can respond to the sun movement and solar intensity simultaneously, based on parametric control. The criterion is to keep a relatively uniform daylight distribution in the range of 300~500 lx over the whole desktop area, aiming to provide sufficient daylight to achieve visual comfort and save energy for a maximised period of a day. Simulation studies have been held in by using the locations of New-Cairo in Egypt and Birmingham in the UK, while, a field study has been held in an example office room at the University of Nottingham in the UK." @default.
- W3087016646 created "2020-09-25" @default.
- W3087016646 creator A5071237620 @default.
- W3087016646 date "2020-07-31" @default.
- W3087016646 modified "2023-09-26" @default.
- W3087016646 title "Innovation of louvre daylighting system via using parametric design approach to enhance the daylight uniformity and stability in the deep-plan buildings" @default.
- W3087016646 hasPublicationYear "2020" @default.
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