The Effect of Window-to-Wall Ratio (WWR) and Window Orientation (WO) on the Thermal Performance: A preliminary overview

Alsehail, Abdullah; Almhafdy, Abdulbasit

doi:10.21834/ebpj.v5i15.2500

Cited by 11 publications

(7 citation statements)

References 33 publications

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“…In addition, the possibility of obtaining higher energy savings from this school design is worth considering further. According to previous studies, 14,21 some envelope variables, such as thermal transmittance and WWR, have a large impact on managing energy savings. An additional study, such as a sensitivity study for the building envelope and geometry, is needed.…”

Section: Relationship Between the Building Envelope Thermal Performan...mentioning

confidence: 99%

Energy savings for a junior high school classroom that actively uses daylighting and sensitivity study on the effect of the building envelope thermal performance

Nur

Yoon

Sato

2022

Japan Architectural Review

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This paper analyzes the energy‐saving potential of lighting, including its effect on heating and cooling, and analyzes the effect of the thermal performance of a building on the annual energy consumption of a classroom actively using daylighting. The subject of this study is M Junior High School, located in Gifu, Japan. This school has a classroom design with a sloping roof, allowing the installation of large windows from north to south. The window‐to‐wall ratio of 56% for the south wall and 41% for the north wall takes advantage of daylight. Simulation results of illuminance in the classroom were validated through comparison with field measurement data. The result demonstrated that daylight utilization decreases lighting electric power consumption by 66.6% when artificial lighting is controlled in the classroom. The results confirmed that there was no significant heat load increase for heating and cooling even though the window surface area was larger than that of a typical classroom. The sensitivity study showed that the thermal performance of the building envelope mainly affects the heating energy consumption, but it has no significant effect on cooling and lighting energy consumption. In terms of the thermal performance of the building envelope and the amount of energy saving by daylight utilization, it is necessary to consider the appropriate thermal performance to determine cost‐effectiveness.

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Section: Relationship Between the Building Envelope Thermal Performan...mentioning

confidence: 99%

Energy savings for a junior high school classroom that actively uses daylighting and sensitivity study on the effect of the building envelope thermal performance

Nur

Yoon

Sato

2022

Japan Architectural Review

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“…Integrating the high-performance façade with high levels of insulation can eliminate the requirement for cooling and increase indoor thermal comfort by adapting simple design solutions that have a predictable impact on energy consumption. The strategy includes proper building massing and alignment, ideal window-to-wall ratio (WWR), use of high-performance glass, and application of exterior shadings (Talip et al, 2021, Alsehail & Almhafdy, 2020.…”

Section: Building Façade In Response To Tropical Climatementioning

confidence: 99%

The Adaptability of PVC Mesh as Recycled Textile Waste towards Innovative Tropical Building Façade

Ariff

Mazdi

Ilagan

2022

E-BPJ

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Textile fibres are commodity materials that will continue to be required in vast numbers for various applications by society but accumulate colossal waste. Upcycled textile waste possesses high potential in building construction through coating application. This research aims to establish the use of PVC mesh textile waste as an innovative textile facade for Malaysian buildings. Content analysis is conducted to evaluate different textile façade construction performing architectural functions. The overall result concludes that PVC mesh covers all aspects in balance as an innovative building façade responding to the needs of the tropical climate setting in Malaysia. Keywords: Textile waste, Building façade, Recycled Material, Textile facade eISSN: 2398-4287 © 2022. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians/Africans/Arabians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v7i20.3505

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“…Finding the perfect design that blends window size, orientation, and shading is crucial. According to Alsehail and Almhafdy (2020) [30], the most important components of window design to consider when determining the appropriate WWR of a building envelope are visual transmittance, thermal conductance (U-value), and climatic conditions. Additionally, in addition to WWR, window geometry (WG) and glazing characteristics also significantly affect building envelope performance [31].…”

Section: Introductionmentioning

confidence: 99%

Energy Performance Optimization for A School Building in Syria According to Building Shape and Orientation

Albaioush¹,

Qurraie²

2022

CRPASE

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Building shape and orientation significantly affect how buildings use energy. The objective of this study was to establish a precise process for improving building shape and orientation early in the design process. A parametric optimization workflow approach was proposed for that objective. As a case study, a primary school building in an area with a warm and dry climate was chosen. Various building shapes (simple rectangle, L shape, U shape, court shape, and square shape) were simulated using parametric energy modeling and simulation tools to determine the EUI for each shape. Utilizing the Octopus plugin, optimization was carried out on the same canvas as the parametric tool (Grasshopper). The genetic diversity of the EUI value and the orientation and glazing ratio WWR were used as the optimization process' input variables. The findings showed that the square building form with a 17° orientation angle was the best approach for achieving the most significant development in the EUI value, reaching energy efficiency improvements of up to 40%.

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The Effect of Window-to-Wall Ratio (WWR) and Window Orientation (WO) on the Thermal Performance: A preliminary overview

Cited by 11 publications

References 33 publications

Energy savings for a junior high school classroom that actively uses daylighting and sensitivity study on the effect of the building envelope thermal performance

Energy savings for a junior high school classroom that actively uses daylighting and sensitivity study on the effect of the building envelope thermal performance

The Adaptability of PVC Mesh as Recycled Textile Waste towards Innovative Tropical Building Façade

Energy Performance Optimization for A School Building in Syria According to Building Shape and Orientation

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