Research and development on aspects of daylighting fundamentals

Alrubaih, M. S.; Zain, Muhammad Fauzi Mohd.; Alghoul, M. A.; Ibrahim, Nik Lukman Nik; Shameri, M. A.; Elayeb, Omkalthum

doi:10.1016/j.rser.2012.12.057

Cited by 115 publications

(81 citation statements)

References 63 publications

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“…These façades do introduce dynamic aspects to the building, but do not have the means to effectively influence perceived indoor climate. Also building integrated photovoltaics (BIPV), and complex, but static daylighting systems [39], [40], are not included in this review, as this technology is not capable of actively responding to variable conditions.…”

Section: Defining Cabsmentioning

confidence: 99%

Climate adaptive building shells: State-of-the-art and future challenges

Loonen

Trcka

Cóstola

et al. 2013

Renewable and Sustainable Energy Reviews

470

261

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Section: Defining Cabsmentioning

confidence: 99%

Climate adaptive building shells: State-of-the-art and future challenges

Loonen

Trcka

Cóstola

et al. 2013

Renewable and Sustainable Energy Reviews

470

261

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“…The discrepancy indicates the possibility of IES-VE not registering the adjacent buildings blocking the daylight which needs to be further investigated. The measured DF is found to be constantly higher than what radiance simulated, this may be due to the unrealistic CIE Overcast Sky which does not represent the actual dynamic sky condition as argued by many reviews [6,16,18,21,23] …”

Section: Radiance and Daylight Factormentioning

confidence: 86%

“…In accordance to the Malaysia Standards MS1525:2014 and the Green Building Index NonResidential New Construction tool (NRNC), the lighting illumination requirement for office space is 300-400 lux or 1-3.5% DF [17,19]. These standards apply only for artificial lights as various reviews have affirmed that subjects accept daylight illuminance ranging 200-2000 lux [4,18,21]. This corresponds well to the DF of 0.5-3.5% instead of 1-3.5%, as an external illuminance under overcast sky ranges 30k lux to 50k lux [7].…”

Section: Daylight Performancementioning

confidence: 99%

Practicality and Performance of Daylight Trough in The Tropics: A Case Study

Gene-Harn

Reimann²,

Bhaskaran³

et al. 2016

MATEC Web Conf.

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Abstract. The field of office daylighting is vital for both energy efficiency practice and occupants' visual comfort. With the emergence of green building in Malaysia, building designers are exploring avenues for energy efficiency design; one common strategy is daylighting. The majority literature reviews on daylighting are skewed towards temperate or developed countries, where sky luminous condition is different from that of the Tropics. Conventional daylighting system designs redirect daylight from the envelope or atrium openings, such as light shelves. Presumed to be the pioneer daylight trough in the Tropics, this paper presents the simulated and in-situ lighting level measurements prior to occupancy. This case study presents an as-built daylight trough design which is able to daylight the office space as deep as 6 meters sufficiently. It achieves a lighting power density 1.90W/m 2 and saves 39.2% of lighting energy over conventional office lighting energy. Discussed further is the practicality of working with such a system, including cost implication, return on investment and contractual challenges in reaching a consensus on the design. The results reinforce that the effectiveness of daylighting design is very dependable on the sun path and obstacles surrounding the office tower. The RADIANCE simulation correlates well to field measurement results. Further investigation into the light trough, its lighting energy savings, users' interaction, visual comfort, and glare is still ongoing.

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“…Daylighting is one of the most strategies, architecture, engineering, it contributes to the energy saving and energy efficiency in buildings [4][5]. Literature indicated that a reduction of 223 million tonnes of co2 emissions by using Daylighting [6]. On the other hand, excessive Daylighting has a negative effect on thermal comfort to building occupants [7].…”

Section: Daylighting and Energy Efficiencymentioning

confidence: 99%