Building façade design for daylighting quality in typical government office building

Lim, Yaik Wah; Kandar, Mohd Zin; Ahmad, Mohd Hamdan; Ossen, Dilshan Remaz; Abdullah, Arham

doi:10.1016/j.buildenv.2012.04.015

Cited by 126 publications

(110 citation statements)

References 15 publications

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“…In the first two weeks, all the operable windows were closed, while in another two weeks all operable windows were widely opened. This is to find out the effects of facade design and building orientation in providing daylighting into the room in ten different scenarios, as the user's adjustment on the internal shading is subjective and unable to be generalised (Lim et al, 2012). The plastic net with 1.5cm 2 of mesh size with 0.5 to 0.6 of light transmittance has been fixed for the safety of data loggers during the opening of all operable windows.…”

Section: W5 Exposedmentioning

confidence: 99%

The Dynamics of Daylighting at a Residential College Building with the Internal Courtyard Arrangement

Jamaludin¹,

Hussein²,

Keumala³

et al. 2015

ArchNet-IJAR

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Section: W5 Exposedmentioning

confidence: 99%

The Dynamics of Daylighting at a Residential College Building with the Internal Courtyard Arrangement

Jamaludin¹,

Hussein²,

Keumala³

et al. 2015

ArchNet-IJAR

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“…(23) also submitted that daylighting enhances performance compared to artificial lighting. Ironically, despite the abundant availability and the merits of daylighting especially in the tropics, it is not fully utilized (22). (24) opined that this anomaly is due to improper fenestration design.…”

Section: Introductionmentioning

confidence: 99%

“…(24) opined that this anomaly is due to improper fenestration design. (22) carried out a study on building facade design for daylighting quality in typical government office buildings in Malaysia, the result shows that only illuminance of 70lux was achieved at a distance of 3.5m from the window. On the contrary, in another study by Lim and Heng (19), a sharp contrast in illuminance level between places close to the window and places farther away was observed.…”

Section: Introductionmentioning

confidence: 99%

“…Daylighting is a passive design strategy for lighting office buildings (18) given the fact that offices operate within daytime, usually between 8:00 am to 5:00 pm which corresponds to the period of daylight availability (19). Daylight is abundant in the tropics (20,21) free and has no negative impact on the environment (22). It has positive physiological and psychological effect on the man as well as good colour rendering (19).…”

Section: Introductionmentioning

confidence: 99%

“…This resulted in non-uniform illuminance distribution, glare among other things which led to the rejection on daylighting and the occupants resorted to artificial lighting. Lim et al (22) conducted a study on a typical office building in Malaysia. The result from the finding indicated the challenge of daylight through side light since illuminance decreases with depth or distance for a sidelight space (22).…”

Section: Introductionmentioning

confidence: 99%

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Light Shelf as a Daylighting System in a Tropical Climate Office Space

Abimaje¹,

Joshua²,

Kandar³

et al. 2018

IJET

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Daylighting is a passive design strategy for lighting office spaces given the fact that offices operate within daytime, usually between 8:00 am to 5:00 pm which corresponds to the period of daylight availability. Daylight is abundant in the tropics, free and has no negative impact on the environment. It has positive physiological and psychological effect on the man as well as good colour rendering. Ironically, despite the abundant availability and the merits of daylighting especially in the tropics, it is not fully utilized. A light shelf is one of the innovative daylighting systems that can be employed to improve office spaces daylighting performance. Therefore, the focus of this study is the application of light shelf as a daylighting system in government offices in Malaysia. This study was carried out through literature search on thirteen disciplines. The disciplines were building and environment, energy, and building, renewable and sustainable energy, energy conservation in Building, lighting research and technology, energy conservation and Management, Solar energy, renewable energy, indoor and built environment, energy policy, energy and buildings, renewable energy, and applied energy. Data were obtained from Science Direct, Web of Science, Scopus and Conference Proceedings. This was done by typing in keywords such as daylighting, light shelf, office spaces, visual performance, tropical climate, and Malaysia. The review was from 1986 to 2016 to cover the length and breadth of the study area for the past 30 years. This work includes previous review and empirical works. Attention was equally given to the methodologies and context of the work. The result of this study showed the poor daylighting performance of government office spaces in Malaysia. The daylighting in these offices is either too low as a result of the use of excessive external shading devices to reduce interior heat gain or too high due to over glazed wall for aesthetics and daylighting. Consequent upon these is inadequate daylighting illuminance, non-uniform illuminance distribution, and glare. This brings about visual discomfort. Also, the study revealed that light shelf as an innovative daylighting lighting system could improve the daylighting performance of these office spaces. The effectiveness of light shelf depends on the latitude, reflectance of light shelf material, the angle of inclination, its depth, mounting position among others. However, there exists little work on the effect of the depth of light shelf and the variation of its distance from the ceiling on the daylight performance of government office spaces in Malaysia. This paper, therefore, recommends investigation on the effect of the depth of light shelf and the variation of its distance from the ceiling on daylighting performance of government office spaces in Malaysia.

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Adaptive façade for building energy efficiency improvement by arithmetical optimization algorithm

Shi

Pouramini

2022

Concurrency and Computation

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Summary To improve the energy efficiency in buildings, a computational optimization method is suggested in this article. The method is designed based on the structure of the adaptive façade. This type of façade system can adjust its visible and thermal transmissivity for actively changing weather conditions. The main concept of this system is the optimization process. This process integrates the DesignBuilder as the building energy simulation tool with an optimization method, called arithmetical optimization algorithm, through the MLE+ toolkit. It is notable that the proposed approach can be applied to different building types and is also not involved in any specific optimization tool. In this regard, two case studies, a typical single office room, and a medium office building are selected to show the capability of the presented approach to improve the energy effectiveness of the building. Based on the results, the energy consumption is decreased by 15.0%–29.1% for the first case study and 14.3%–22.4% for the second case compared to the static façades. The adaptive façades' potentiality is indicated by the important achievements in this study.

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Building façade design for daylighting quality in typical government office building

Cited by 126 publications

References 15 publications

The Dynamics of Daylighting at a Residential College Building with the Internal Courtyard Arrangement

The Dynamics of Daylighting at a Residential College Building with the Internal Courtyard Arrangement

Light Shelf as a Daylighting System in a Tropical Climate Office Space

Adaptive façade for building energy efficiency improvement by arithmetical optimization algorithm

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