SACM - United Kingdom
Permanent URI for this collectionhttps://drepo.sdl.edu.sa/handle/20.500.14154/9667
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Item Restricted A Framework for Sustainable Construction Project Based on BIM Environment(Saudi Digital Library, 2023-10-16) Alnahdi, Sultan Saleh; Al-Ashaab, AhmedThe global construction industry's significant resource consumption and environmental impact underscore the urgency of sustainability. This research emphasizes the intersection of sustainability and construction, focusing on ecological, economic, and social considerations. It highlights Building Information Modelling (BIM) as a key enabler of sustainability within the construction value chain. Construction, vital to economic and societal development, necessitates sustainability as a core project objective. Efficient resource utilization, compliance with evolving sustainability standards, and effective collaboration among stakeholders are crucial. However, communication challenges often impede shared understanding and data integration. BIM emerges as a digital solution, unifying project phases, facilitating collaboration, and informed decision-making. In response to the global sustainability mandate, construction projects worldwide are adopting more effective approaches. BIM plays a pivotal role in enhancing efficiency, performance, and productivity. This research addresses a gap by presenting a framework to assess how building materials impact energy consumption within the BIM environment. The research aims to develop a comprehensive framework for promoting sustainability in construction projects through BIM. This involves investigating sustainable practices, assessing BIM's role in sustainability, selecting optimal engineering calculations, and creating an integrated framework. The framework's effectiveness will be evaluated through a hypothetical case study. Key research questions include BIM's alignment with sustainability, expected improvements in addressing sustainability issues, and the value of sharing sustainability calculations within the construction value chain. The thesis comprises seven chapters, including a literature review on sustainability and BIM, a detailed research methodology, a hypothetical case study, analysis of conduction heat transfer calculations, the development of a sustainable construction framework, and discussions, conclusions, and future directions. This research seeks to empower the construction industry with a practical framework for embedding sustainability within the BIM environment, driving efficiency, environmental responsibility, and societal well-being.21 0Item Restricted Investigation Of The Ventilation And Thermal Performance Of Mashrabiya For Residential Buildings In The Hot-Humid Climate Of Saudi Arabia(Saudi Digital Library, 2022-06) Bagasi, Abdullah Abdulhameed; Calautit, JohnThe residential sector in Saudi Arabia is the most energy-consuming building sector, accounting for about 50% of the total energy generated. A large proportion of this energy is used to maintain the indoor air temperature at the required comfort level. While the lack of optimal use of natural resources in buildings, such as natural ventilation also contributes to the rising consumption. Traditionally, Saudi buildings were characterised by different architectural solutions and elements such as the mashrabiya, which was closely related to the local environment and responded to many factors, such as climatic conditions and occupants needs. Mashrabiya is an opening covered with a wooden lattice for ventilation, daylight, privacy, and an aesthetic appeal for houses. Although there are many studies and research on the mashrabiya, most studies addressed either the ventilation or daylight aspect and few included evaporative cooling without conducting field tests or validated modelling to investigate its actual performance and the extent of its impact on the internal thermal environment. Therefore, this research aims to investigate the effect of the mashrabiya on the indoor thermal environment and develop a mashrabiya design to enhance indoor thermal comfort in the residential buildings in hot climates with reference to Jeddah, Saudi Arabiya. The research, besides the literature review, includes field experiments and simulation works. The field experiment results indicated that opening the mashrabiya allowed more airflow into the room and reduced the indoor temperature by up to 2.4 °C compared to the closed mashrabiya. Furthermore, by integrating evaporative cooling strategies (pots, water sprays, and wet cloth) with the open mashrabiya, it was found that the most effective approach to improving the room air temperature was hanging a wet cloth and the average room temperature reduced by up to 6.8°C. Along with that, the thermal mass played a significant role in reducing indoor air temperatures' thermal swings. In order to expand its scope in the study and examination of the mashrabiya, a computational fluid dynamic simulation tool was used. The results of the base case of the mashrabiya in the simulation generally indicated that the slats' inclination plays a vital role in the direction of the airflow into the room, and this is evident with tilting the slats angle to +30 or -30, as the airflow becomes more directed and sharper to the ceiling or the floor. Also, compared to the benchmark case, the mashrabiya contributed to29 0