Impact of Building Orientation on Daylight Availability and Energy Savings Potential in an Academic Classroom

Kaminska, A.

doi:10.3390/en13184916

Cited by 9 publications

(5 citation statements)

References 17 publications

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“…Prior studies have emphasized the significance of daylighting due to its numerous beneficial effects, including enhancing psychological well-being, health, and production [1]. The daylighting quality is significantly impacted by several factors, including the building's geometry, orientations, space distribution, and light apertures [2] [3]. In addition, daylight availability is contingent upon the atmospheric conditions and the sun's trajectory during a particular time or interval within each climatic region [4].…”

Section: Introductionmentioning

confidence: 99%

The Efficacy of Horizontal Adjustable Bent Louver Shading for Enhancing Daylighting Performance in Walk-Up Apartment Buildings

Dinapradipta,

Sudarma,

Indrawan

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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This paper addressed the challenges posed by the limited windows and restricted areas in walk-up flats in Indonesia, resulting in improper indoor daylight performance. The study proposes using outdoor horizontally bent, adjustable louver screens as daylight reflectors to overcome this issue and improve daylighting performance in apartment buildings. The quasi-experimental technique implemented the Radiance Desktop Plug-in Version 1.02 and Ecotect 2011 lighting software. Variables, such as slat shading geometry, i.e., flat, one-bent, two-bent slats, and rotation opening angles, i.e., 30°, 45°, 60°, and 90°, were examined for interior daylight performance regarding daylight intensity and distribution. The findings indicate that although shading can reduce the average lighting level in a room, shading types with bents can improve daylight performance in another important aspect, namely achieving a more even distribution. The most effective shading technique for harvesting and distributing daylight evenly in tropical walk-up apartments was a two-bent slat type, particularly with opening angles of 90°. The results also demonstrate that louvers with multiple bent slat geometry are particularly effective in reflecting high altitudes of incident light often encountered in tropical regions and scattering the incoming light evenly into the innermost area of the room.

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Section: Introductionmentioning

confidence: 99%

The Efficacy of Horizontal Adjustable Bent Louver Shading for Enhancing Daylighting Performance in Walk-Up Apartment Buildings

Dinapradipta,

Sudarma,

Indrawan

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…This strategy also applies to room lighting systems. Several approaches for automating lighting has been introduced, such as on/off control (Kaminska, 2020), time-scheduling (Qahtan et al, 2019), occupant detection (Papinutto et al, 2022), retrofitting (Al-Ghaili et al, 2020, constant illumination (Han et al, 2019) and dimming control (Kaminska & Ożadowicz, 2018). In previous research, dimming control contributed to more than 30% of energy savings compared to implementing on/off control (Kaminska, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Several approaches for automating lighting has been introduced, such as on/off control (Kaminska, 2020), time-scheduling (Qahtan et al, 2019), occupant detection (Papinutto et al, 2022), retrofitting (Al-Ghaili et al, 2020, constant illumination (Han et al, 2019) and dimming control (Kaminska & Ożadowicz, 2018). In previous research, dimming control contributed to more than 30% of energy savings compared to implementing on/off control (Kaminska, 2020). Therefore, in this research, a study was carried out on the potential for saving electrical energy consumption in one of the rooms in the Electrical Engineering Building with a lighting system automation strategy with dimming control.…”

Section: Introductionmentioning

confidence: 99%

The Potential Energy Saving in Lighting Systems on Campuses in Tropical Areas: A Combination of Natural and Artificial Light

Akbar,

Ridho,

Saputra

2023

GJESET

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Energy consumption continues to increase and is predicted to increase by up to 30 percent by 2040. Therefore, systematic efforts are needed to reduce energy use, including using natural lighting in lighting systems inside buildings. The object of this study is the library room in the Electrical Engineering Department building, Universitas Andalas, Indonesia, to calculate the potential for energy savings with a lighting automation strategy with dimming control. Measurement of natural light level at three work nodes has been determined for one week as reference data. The shortage of artificial light required, and the electrical energy consumed is calculated by referring to the minimum standards for room lighting intensity. On the basis of each lamp's working hours and power, the potential for energy savings in the lighting system of the object can be determined. This study found that the potential for saving energy consumption for one week at three different nodes was 32.3, 64.2, and 82.8 percent. This study concludes that the maximum value reached 893 lux on Tuesday at 13:00 at node C, and the lowest was 3 lux on Saturday at 15:00 WIB at node A. Node C had an average light intensity of 402.298 lux, and node B had an average of 206.765 lux during the week. In contrast, node A has the lowest lux average, with 87,711 lux in one measurement week. Also, with the combination of natural and artificial light sources with dimming control strategies, the voltage values given to each lamp range from 0 to 180 VAC. Potential savings in energy consumption by combining natural and artificial light with dimming control strategies in the library room with three different nodes (A, B, C) are 32.3, 64.2, and 82.8 percent.

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“…Current studies have focused on the impact of building orientation on energy efficiency, thermal comfort, lighting, performance and ventilation (Aini and Nadia, 2019, Gonçalves et al, 2021, Kaminska, 2020. Additionally, Choi and Storr (2019) identified a relationship between rent increase and tenant retention in commercial real estate.…”

Section: Introductionmentioning

confidence: 99%

The effect of space flexibility and building orientation on grade-B office building occupancy rate in Kampala City

Namayanja,

Mubiru

2023

Pathways to Sustainable Real Estate Investment in Sub Saharan African Countries: The 22nd Annual AfRES Conference

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This paper focused on linking the influence of the specifics of building services orientation and space flexibility on the occupancy dynamics of Grade-B office buildings.The paper employed a cross-sectional design, backed with qualitative and quantitative research approaches, on a sample size of 115 respondents including tenants (70), property managers/owners (40), and real estate experts (05). Data collection was through questionnaires and interview guides. Quantitative analysis was done through univariate and bivariate methods buttressed by the use of MS Excel, MS. Word and STATA version 15. The qualitative component employed thematic analysis.The findings indicate a significant relationship between occupancy length and the sufficiency of rentable space to meet business needs. Buildings with bigger rentable spaces had higher occupancy. Lastly, the majority (82.9%) of the tenants could not customize their rentable spaces according to their needs due to restrictions from landlords and property managers, leading to their high mobility. We recommend attention to the design and layout of parking spaces commensurate to the building's capacity and local regulations and ensuring flexibility of floor plans during building designs. A well-designed building with convenient road accessibility, ample parking, attractive amenities, and tenantfocused design can better retain tenants, leading to better building performance.

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Impact of Building Orientation on Daylight Availability and Energy Savings Potential in an Academic Classroom

Cited by 9 publications

References 17 publications

The Efficacy of Horizontal Adjustable Bent Louver Shading for Enhancing Daylighting Performance in Walk-Up Apartment Buildings

The Efficacy of Horizontal Adjustable Bent Louver Shading for Enhancing Daylighting Performance in Walk-Up Apartment Buildings

The Potential Energy Saving in Lighting Systems on Campuses in Tropical Areas: A Combination of Natural and Artificial Light

The effect of space flexibility and building orientation on grade-B office building occupancy rate in Kampala City

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