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37 results on '"Maghrabie, Hussein M."'

27. Review of Metaheuristic Optimization Algorithms for Power Systems Problems.

Author

Nassef, Ahmed M., Abdelkareem, Mohammad Ali, Maghrabie, Hussein M., and Baroutaji, Ahmad

Abstract

Metaheuristic optimization algorithms are tools based on mathematical concepts that are used to solve complicated optimization issues. These algorithms are intended to locate or develop a sufficiently good solution to an optimization issue, particularly when information is sparse or inaccurate or computer capability is restricted. Power systems play a crucial role in promoting environmental sustainability by reducing greenhouse gas emissions and supporting renewable energy sources. Using metaheuristics to optimize the performance of modern power systems is an attractive topic. This research paper investigates the applicability of several metaheuristic optimization algorithms to power system challenges. Firstly, this paper reviews the fundamental concepts of metaheuristic optimization algorithms. Then, six problems regarding the power systems are presented and discussed. These problems are optimizing the power flow in transmission and distribution networks, optimizing the reactive power dispatching, optimizing the combined economic and emission dispatching, optimal Volt/Var controlling in the distribution power systems, and optimizing the size and placement of DGs. A list of several used metaheuristic optimization algorithms is presented and discussed. The relevant results approved the ability of the metaheuristic optimization algorithm to solve the power system problems effectively. This, in particular, explains their wide deployment in this field. [ABSTRACT FROM AUTHOR]

Published
2023
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28. Novel Trends in Proton Exchange Membrane Fuel Cells

Author

Olabi, Abdul Ghani, primary, Wilberforce, Tabbi, additional, Alanazi, Abdulrahman, additional, Vichare, Parag, additional, Sayed, Enas Taha, additional, Maghrabie, Hussein M., additional, Elsaid, Khaled, additional, and Abdelkareem, Mohammad Ali, additional

Published
2022
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31. A review on zero energy buildings – Pros and cons

Author

Wilberforce, Tabbi, Olabi, A. G., Sayed, Enas Taha, Elsaid, Khaled, Maghrabie, Hussein M., and Abdelkareem, Mohammad Ali

Abstract

Enhancing the energy efficiency of structures has been a staple of energy policies. The key goal is to slash electricity usage in order to minimize the footprint of houses. This goal is sought by putting restrictions on the design specifications with respect to the properties of the raw materials and components as well as the exploitation of sustainable sources of energy. These facts for the basis for zero-energy building (ZEB) being established. This novel technology has faced several obstacles impeding its commercialization and future advancement. This investigation therefore holistically explored and evaluated the state of zero energy building and factors impeding their commercialization. The review further proposed some suggestion in terms of technology that can be considered by the sector to augment existing technologies. Similarly, the investigation touched on the effect of occupant's character in zero energy structures. Policies in terms of government subsidies and tax rebates were recommended to encourage more investors into the sector. Finally, the perception of zero energy building being more expensive compared to the traditional structures can equally be curbed via efficient and effective public sensitization.

Published
2021

32. Building-integrated photovoltaic/thermal (BIPVT) systems:Applications and challenges

Author

Maghrabie, Hussein M., Elsaid, Khaled, Sayed, Enas Taha, Abdelkareem, Mohammad Ali, Wilberforce, Tabbi, and Olabi, A. G.

Abstract

A key medium for energy generation globally is the solar energy. The present work evaluates the challenges of building-integrated photovoltaic (BIPVT) required for various applications from techno-economic and environmental points of view. Many challenges are found for applying solar photovoltaics (PVs) modules combined with building systems: supplying hot and cold water and ventilation for the residential and non-residential building. Moreover, efforts and advances achieved in enhancing the BIPVT thermal and electrical performance are explored. Additionally, the review provides further insight into recognizing the fundamental science of the BIPVT systems, explaining its rapid developments and the thermal performance mechanisms. The BIPVT systems designed for rooftops, windows, and facades are specifically highlighted in the present review. Furthermore, the status of PV modules and BIPVT system, benefits, applications, barriers and challenges, and future prospects are discussed. The BIPVT systems require governmental support and a more economically convenient and efficient tariff to maintain the economic feasibility of the system. The key factors impeding the commercialization of BIPVT systems are the implementation of the feed-in tariff, customers’ perception, national economic support, technical aspects such as the performance, system management, and architectural and material considerations. Finally, this review indicates that further works concerned the BIPVT systems to enhance the technology and advancements are still required.

Published
2021

37. Desalination process using humidification–dehumidification technique: A detailed review.

Author

Mohamed, A. S. A., Ahmed, M. Salem, Maghrabie, Hussein M., and Shahdy, Abanob G.

Subjects
GEOTHERMAL resources, POWER resources, WATER supply, SALINE water conversion, FRESH water, FOSSIL fuels, NONRENEWABLE natural resources
Abstract

Summary: The lack of fresh water resources is one of the important reasons obstructing progress all over the world. To overcome this crucial situation, the water desalination system (WDS) is progressed, enhanced, and modified. The desalination plant is mostly powered by nonrenewable energy resources, mainly by fossil fuels that make it an expensive and high‐energy‐consuming technology. Therefore, it is indispensable to depend on renewable energy supplies to drive desalination systems. Recently, the total thermal energy desired to operate the humidification–dehumidification desalination systems can be gained from renewable/sustainable energy resources such as geothermal energy and solar energy. Among the different desalination techniques, the HDH is considered one of the most effective desalination techniques to manage the critical issue of shortage of drinking water. The current paper presents a comprehensive review of diverse types of HDH desalination systems as well as their fundamental components. The present work revealed that the seawater HDH system is a promising technology to produce fresh water, particularly for decentralized demand. The packed bed humidifier is the most utilized type in the HDH water desalination system than other types of humidifiers. Furthermore, the direct dehumidifier enhances the performance of HDH desalination system compared to the indirect one. The present study concludes that the hybrid energy systems have the highest gain output ratio, while the thermal energy systems have the lowest gain output ratio. Water heating with solar energy has a significant enhancement in system productivity compared with solar air heating. The HDH WDS incorporated with heat pump achieves appropriate system productivity and gain output ratio with the lowest cost per liter. [ABSTRACT FROM AUTHOR]

Published
2021
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