Daylight optimization through architectural aspects in an office building atrium in Tehran

Rastegari, Mahsa; Pournaseri, Shahnaz; Sanaieian, Haniyeh

doi:10.1016/j.jobe.2020.101718

Cited by 25 publications

(20 citation statements)

References 27 publications

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“…The latest method for evaluating daylight performance is climate-based daylight modeling (CBDM), which is a dynamic method based on real daylight climate data hour by hour throughout the year, making daylight simulation more accurate and reliable. CBDM provides various metrics for evaluating daylight performance, such as spatial daylight autonomy (sDA), annual sunlight exposure (ASE), and useful daylight illuminance (UDI) [5][6][7]12,13,30,31]. Therefore, the Shandong Jinan (CSWD) file downloaded from https://energyplus.net/weather (accessed on 23 November 2021) serves as the weather file for the later daylight simulation study.…”

Section: Research Methodology and Model Buildingmentioning

confidence: 99%

“…Common types of atrium geometries include circular, rectangular, and triangular, and different floor plans affect the amount of daylight entering the building. Additionally, the height of the atrium has an unavoidable effect on the incoming daylight, with WI or well index, which is related to the floor number, being regarded as an important variable [30].…”

Section: Authormentioning

confidence: 99%

“…Since the atrium is the main area of natural daylight in shopping malls, the exploration of changes in its design parameters plays a crucial role in optimizing the indoor daylight performance of buildings [30]. Therefore, by selecting and extracting a large number of atrium design parameters (e.g., atrium size, atrium inclination, atrium material, skylight design, shading parameters) from a large number of studies related to atrium design parameter variables.…”

Section: Introductionmentioning

confidence: 99%

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A Study on Parametric Design Method for Optimization of Daylight in Commercial Building’s Atrium in Cold Regions

Xue

Liu

2022

Sustainability

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With the development of urbanization, more and more commercial buildings are built in cities, which is resulting in a large amount of building energy consumption that threatens the ecological environment of the earth. Lighting energy in commercial buildings occupies a large proportion of consumption, and improving the quality of natural daylight in commercial atriums is of great significance for building energy efficiency as well as improving indoor comfort. This paper proposes a method for optimizing the daylight quality of commercial atriums. Starting from the perspective of parametric design, this paper investigates the current status and theoretical research on the natural daylight of commercial atriums in cold regions, taking Jinan, China, as an example. Dynamic daylight and glare simulations were performed using Rhino + Grasshopper and Ladybug + Honeybee for every design parameter in the system, followed by correlation analysis and multiple linear regression analysis using SPSS to determine the degree of influence of each design parameter on the daylight quality of the atrium. Based on the results of the above analysis, the multi-objective optimization plug-in Octopus is used to find the combination of design parameters that can achieve the best indoor daylight. The results show that among a total of fourteen atrium design parameters, seven of them are significantly correlated with atrium daylight, and after regression analysis, it is found that the atrium design parameters affect the atrium daylight and glare in the following order: Skylight VT, Skylight ratio, Atrium inclination, Fabric coverage, Fabric VT, Wall reflectivity, Roof reflectivity. The optimal design parameters for commercial atrium daylight quality are obtained according to the Pareto front solution set, which provides some reference and ideas for improving the optimization of commercial atrium daylight in cold regions of China.

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Section: Research Methodology and Model Buildingmentioning

confidence: 99%

Section: Authormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Study on Parametric Design Method for Optimization of Daylight in Commercial Building’s Atrium in Cold Regions

Xue

Liu

2022

Sustainability

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“…Contemporary research trends largely oscillate around the development of ways to increase the amount of natural lighting. The idea of using atrium as an additional illuminating source has been investigated by numerous research teams (Rastegari M., Pournaseri S., Sanaieian H., 2021., Fan Z., Yang Z., Yang L., 2021., Ferreira T, Bournas I, Dubois M-C, 2019., Susa-Páez A., Piderit-Moreno M. B., 2020, but such a solution is practically applicable only in the case of designing new buildings. There are also studies that use artificial neural networks to predict natural lighting inside a building (Walger da Fonseca R., Didoné E. L., Pereira F. O.…”

Section: Introductionmentioning

confidence: 99%

“…Współczesne tendencje badawcze w dużej mierze oscylują wokół rozwoju sposobów pozwalających na zwiększenie ilości naturalnego oświetlenia. Koncepcja wykorzystania atrium jako dodatkowego doświetlającego źródła było badane przez liczne zespoły badawcze(Rastegari M., Pournaseri S., Sanaieian H., 2021., Fan Z., Yang Z., Yang L., 2021., Ferreira T, Bournas I, Dubois M-C, 2019., Susa-Páez A., Piderit-Moreno M. B., 2020. ), lecz takie rozwiązanie znajduje zastosowanie praktycznie jedynie w projektowaniu nowych budynków.…”

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Efficiency of Natural Lighting in Office Buildings on the Example of a Building Located in Poland

Lichołai¹

2021

piF

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It is important for sustainability to reduce the energy demand of both existing and planned buildings. The requirements for workspace lighting clearly define the minimum light intensity that must be provided. The aim of the study was to verify if the selected office layouts independently fulfill the requirements of the Polish Norm for lighting of workplaces without the use of artificial light sources. The analysis took into consideration standard working hours of office buildings, that is from January to December, from 8 a.m. to 4 p.m. Interpretation of the obtained data allowed to select the layouts that maintain the most stable efficiency of natural daylight.

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External shading and its effect on the energy efficiency of Tehran's office buildings

Heidarzadeh,

Mahdavinejad,

Habib

2023

Env Prog and Sustain Energy

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Modern office building designers tend to propose highly glazed façades that provide occupants with a view and daylight; however, the use of such façades has consequences, like glare and high energy consumption, especially in warm climates. Shadings affect energy usage for cooling, heating, and artificial lighting, defined as the objectives and output in the optimizer algorithm. The input variables are shading type, WWR, the depth of the shading, the distance between the shading and the window, the distance between fins, the number of fins in shading, and the distance from the top of the window. This research aims to comprehensively study external shadings and window‐to‐wall ratios to reduce the high energy consumption in modern office buildings in Tehran and cities in locations with a similar climate. The results can benefit all scientists researching building science, architects, instructors, and those wanting to buy a low‐energy consumption office. Energy consumption was calculated in Ladybug–Honeybee; the best objectives were obtained for each shading with the optimization process by the Octopus plugin in Grasshopper. Results were analyzed and rated compared with a window without shading. The best scenario was obtained for Egg‐crate with a 14.86% reduction in cooling energy and a 20.04% increase in useful daylight illuminance.

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Daylight optimization through architectural aspects in an office building atrium in Tehran

Cited by 25 publications

References 27 publications

A Study on Parametric Design Method for Optimization of Daylight in Commercial Building’s Atrium in Cold Regions

A Study on Parametric Design Method for Optimization of Daylight in Commercial Building’s Atrium in Cold Regions

Efficiency of Natural Lighting in Office Buildings on the Example of a Building Located in Poland

External shading and its effect on the energy efficiency of Tehran's office buildings

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