RSS 1.0Effat University Institutional Repository
Welcome to the Effat University Repository, a service of Effat Library and Cultural Museum. This repository provides global and open access to scholarship and research output created by Effat University faculty, graduate and undergraduate students.
While the University Repository is accessible to the public, submission is limited to the Effat University community.
To submit your research, click here.
If you have any questions, please email us at repository@effatuniversity.edu.sa
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Collapsible Multipurpose Camping ChairThis thesis presents the design and development of a collapsible multipurpose camping chair, addressing the needs of modern outdoor enthusiasts for convenience and functionality. Grounded in product design principles, this study explores the entire process from ideation to prototype, highlighting the importance of user-centered design. By examining historical references to chairs, including their evolution from ancient civilizations, this research informs a contemporary redesign that prioritizes portability, comfort, and versatility. The project aims to create a chair that not only serves its primary function but also adapts to various outdoor activities, enhancing the user experience. Through iterative design processes and user feedback, this thesis contributes to the field of product design by showcasing innovative solutions for everyday challenges in outdoor settings.
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Augmentation of Building Integrated Photovoltaic System Technology in Building Architectural DesignIn 2020, nearly all of Saudi Arabia’s electricity generation is fueled by natural gas (61%) and crude oil (39%). In addition, Saudi Arabia is witnessing an increase in energy consumption, especially in the industry sector consumes 47% of the primary energy while the building sector consumes 29% of the primary energy, representing about 75% of the country’s electricity production. As part of Saudi Ara- bia’s vision 2030, the Saudi government plans to diversify fuels to increase crude oil exports and reduce carbon dioxide emissions. In Saudi Arabia, the solar irradiance averages 5.2 kWh/m2/day, photovoltaic (PV) technology is being embraced to achieve green growth and increase its power generation. As a result of the technology’s close proximity to the point of consumption, it ensures a continuous supply of energy while reducing the country’s transmission and distribution losses. A key parameter affecting the performance of PV panels in a photovoltaic system is the solar radiation incident on the panel. The tilt and azimuth angles of PV modules are two important factors in designing the PV system for the best performance. In contrast to add-on Photovoltaics, PV, Building-integrated PV (BIPV) refers to the installation of PV arrays that are integrated into building envelopes and can generate electricity on their own. Saudi Arabia with its average daily solar radiation is well-positioned to make use of this BIPV technology to fulfill its goal of achieving green growth and expanding electric power generation. In addition, by producing power close to the point of use, the technology will ensure the continuous supply of energy. Additionally, the technology will reduce the country’s current 23% transmission and distri- bution losses by producing electricity at the point of use. To investigate this possibility, the Admission and Registration building (AR) at Effat University in Jeddah is used as a case study to understand how the country can meet some of its electricity demand through the grid-tied BIPV. This study starts by uti- lizing Excel software to calculate the azimuth angle for the best adjustment of solar modules. A detailed design, simulation, economic analysis, and the save emission of CO2 of a grid-tied BIPV system are conducted for different scenarios of the building using the PVsyst software package. The study com- pares the solar system’s performance for mono-crystalline, poly-crystalline, and thin-film photovoltaic and BIPV modules. The simulation showed the optimal design in terms of the significant amount of en- ergy that can be generated and how much it covers the estimated demand of the AR building. Moreover, based on the current electricity tariff of KSA, the amount of savings per year is also investigated.
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Advances and development of wind–solar hybrid renewable energy technologies for energy transition and sustainable future in IndiaWhile solar power projects are built on a continuous ground, wind power projects require scattered land, raising transmission costs and increasing the risk of land-related complications. Wind–solar hybrid (WSH) projects have been proposed to address these issues and accelerate installation. WSH power projects will create a well-defined area with sufficient infrastructure, including evacuation facilities, where the project’s risks can be reduced. The extensive coastline of India is endowed with high wind flow speed and plentiful solar power resources, creating an ideal environment for WSH projects to prosper while simultaneously improving grid stability and reliability. WSH plants guarantee higher transmission efficiency and cost-effectiveness than their stand-alone counterparts. As of 30.11.2021, 3.75 GW of WSH projects have been granted, with 0.148 GW of operational capacity and 1.7 GW of WSH projects in various bidding phases. In this paper, we discussed state-wise WSH potential, the key players in the WSH project, the National WSH, and the State WSH policy and amendments. Also, the WSH project’s physical progress and commercial details are covered. A feasibility study of the WSH plant is performed, and the primary design strategy for deploying WSH power facilities in India is discussed. It covers every step of this process, from design technique to choosing and evaluating potential locations for such hybrid projects, optimally placing wind turbines and solar panels, overall capacity mix for hybrid plants, and ultimately power evacuation optimization. Additionally, a brief study of the savings from these hybrid plants and the environmental, social, and governance standards which are necessary to implement these projects are provided. The potential challenges connected with WSH technologies are examined in depth, and potential solutions and mitigations for the challenges are provided. Designing a WSH for small-scale irrigation is provided along with the size and choice of wind and solar systems. Degradation of PV systems and carbon savings are included, along with some policy measures to boost the proportion of WSH in the entire power mix. In India, the development of large-scale WSH projects is still in its early stages, and more research is required to explore technical, commercial, and policy elements that influence project design. The policy suggestions for improvement of the WSH project are provided. The WSH project developers, potential investors, stakeholders, innovators, policymakers, manufacturers, designers, and researchers will benefit from the recommendations based on the review’s findings.
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Innovative Industrial Design in Saudi Arabia: The Retractable Umbrellas of Al-Masjid an-NabawiThe retractable umbrellas at Al-Masjid an-Nabawi in Medina exemplify a seamless integration of modern industrial design and Islamic architectural aesthetics. Designed to address the intense heat of the region, these innovative structures provide shade and comfort to worshippers while enhancing the mosque's visual harmony. This article explores the functionality, engineering marvels, and cultural significance of these umbrellas, emphasizing their role as a sustainable and user-centered solution. As a symbol of Saudi Arabia's Vision 2030, they showcase how industrial design can harmonize tradition and innovation, offering a model for future projects in culturally significant spaces.
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Spillovers between oil and the GCC stock markets: Fresh evidence from a regime-switching approachThis study examines the connection between crude oil and the Gulf Cooperation Council (GCC) region stock markets by employing a regime-switching approach. The methodology provides new insights on how the linkage between oil and GCC stock markets may fluctuate in different economic or market regimes, which is crucial for understanding the transmission of oil shocks and tailoring policy responses. The findings indicate that the spillovers between the underlying assets are asymmetric. Specifically, during the turmoil periods, the connectedness is intense among these assets, whereas during tranquil periods, the linkage is moderate. The intense spillovers regime is short-lived, which corroborates the existing literature of a relatively stable oil market. Furthermore, an increase in oil prices can positively contribute to the profits of firms that are heavily dependent on oil, leading to an increase in the linkage between these countries and crude oil. Results have crucial suggestions for investors and decision-makers in the GCC region.
