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The Impact of Window to Wall Ratio (WWR) and Glazing Type on Energy Consumption in Air-Conditioned Office Buildings |
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| รหัสดีโอไอ | |
| Creator | Najib T. Al-Ashwal |
| Title | The Impact of Window to Wall Ratio (WWR) and Glazing Type on Energy Consumption in Air-Conditioned Office Buildings |
| Contributor | Ahmad Sanusi Hassan |
| Publisher | TUENGR Group |
| Publication Year | 2560 |
| Journal Title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| Journal Vol. | 8 |
| Journal No. | 3 |
| Page no. | 197-207 |
| Keyword | Daylighting, Energy efficiency, indoor environment, energy saving . |
| URL Website | http://tuengr.com |
| Website title | International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies |
| ISSN | 2228-9860 |
| Abstract | The quality of indoor environment is crucial in office buildings. In a direct way, it affects the occupants' health and performance. A large amount of energy is usually required to provide and maintain acceptable indoor thermal and lighting conditions. It is found that working spaces are mainly illuminated by artificial lighting systems, which are responsible for a major part of the total energy consumption. The lighting conditions of the interior space can be enhanced by the efficient utilization of natural lighting and the reduction of the amount of energy used. The window to wall ratio (WWR) and the type of glazing play a significant role in controlling the transmitted daylight into space, as well as the heat exchange between the interior space and the outside environment. This paper aims to investigate the impact of the WWR and the glazing type on the total energy consumption. The potential energy savings are also investigated. A parametric analysis was conducted to achieve the research objective using modeling and simulation methods. The main findings of this study showed that the large reduction in the energy consumption can be achieved when a certain glazing type with a high value of visible transmittance is used at small WWR. The type of glazing with a better thermal performance, on the other hand, provides the highest energy savings with larger WWR. The most suitable window area varies according to the zone orientation. |
