Projects for SDBE

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Browsing Projects for SDBE by Subject "solar heat gain"

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    Energy saving by using Double Skin Façade for office buildings in the UAE
    (The British University in Dubai (BUiD), 2014-03) Ashour, Mohamed
    There is more demand on glazed façades for high-rise buildings which, increase cooling loads especially in hot and arid climate. Double skin façade is widely used to reduce energy loads and provide visually transparent façades, it has become more popular in cold climates because of the evident ability of the double skin façade to reduce heating loads, on the other hand many studies have shown potential energy savings by using double skin façade in hot climate as well, it is thought to be as a result of ventilating the channel between the external and internal façade. This study attempted to simulate the thermal performance of the double skin façade in high-rise office building in Dubai city, where temperature could reach over 42 ᵒC in summer. The study examined different parameters that could affect the performance of the double skin façade such as, channel width, glazing type, and natural ventilation mode. Results showed that double skin façade can reduce cooling loads regardless the channel was ventilated or not as result of reduced solar gain by the external façade. The results also showed up to 20% savings in cooling plant sensible annual load and 8% savings in total annual energy consumption, computer simulation were used to estimate thermal performance of the façade and also computational fluid dynamic analysis was used in a partial section of the model to simulate thermal behavior inside the channel. More comprehensive evaluation is recommended for double skin façade system, to balance between cost increase when adding another skin to the building and total running cost savings by reducing annual total energy consumption.
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    The Impact of External Shading and Windows’ Glazing and Frame on Thermal Performance of Residential House in Abu-Dhabi
    (The British University in Dubai (BUiD), 2013-04) Awadh, Omair Fawzi
    High awareness of sustainability importance has been witnessed in the United Arab Emirates (UAE) in the last few years. Sustainable development needs have set one of the bottom lines of Abu-Dhabi vision, the capital of the UAE. Construction industry was prioritized in this vision due to the huge expanding and developments that have been carried on in the area. Estidam is the sustainability pearl rating system for Abu-Dhabi’s construction. Guidelines are provided for buildings and communities. They include water and energy consumption regulations, eco-friendly materials, waste management, and insulation techniques. Construction and buildings industry are the cause of energy’s massive demands in the area. Therefore, reducing energy consumption during buildings’ life cycle contributes the most in CO2 emissions reduction. Sustainable principles adaptation at buildings’ design stage results the best in efficient building delivery, but existing buildings are important factor in the whole energy picture and has to be highlighted. The present study significance is to enhance existing buildings’ performance and at the same time improve regulators and buildings designers’ ability to adopt energy efficient practices.