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Your search keyword '"Fawzia, Sabrina"' showing total 221 results
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221 results on '"Fawzia, Sabrina"'

10. Behaviour of Filament Wound FRP-Rubberised Concrete-Steel Hybrid Double Skin Tubular Column (Hybrid RuDSTC) Under Axial Loading

Author

Khusru, Shovona, Fawzia, Sabrina, Thambiratnam, David P., Elchalakani, Mohamed, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Ilki, Alper, editor, Ispir, Medine, editor, and Inci, Pinar, editor

Published
2022
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16. Effect of the CFRP length and beam curvature on the strength gain of CFRP-strengthened vertically curved circular hollow sections: an experimental study.

Author

Weerasinghe, K.A.B., Gamage, J.C.P.H., and Fawzia, Sabrina

Subjects
CARBON fiber-reinforced plastics, CURVATURE, ULTIMATE strength, FAILURE mode & effects analysis
Abstract

The effects of CFRP wrapping length and the beam curvature on the ultimate strength of carbon fibre reinforced polymer (CFRP)-strengthened in-plane curved steel circular hollow sections (SCHS) were studied by means of an experimental study. A total of 16 beams having four curvatures 0 mm, 2000 mm, 4000 mm and 6000 mm, which were strengthened with three CFRP lengths 500 mm, 750 mm and 1000 mm, were tested under three-point bending. Failure loads, failure mechanisms, strain variations and load-deflection responses were observed. Four types of failure modes were observed in CFRP-strengthened vertically curved SCHS depending on the CFRP wrapping length. The best performance was noted in strengthened beams when the ratio between CFRP wrapping length and beam span is 0.625. [ABSTRACT FROM AUTHOR]

Published
2024
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42. A Comprehensive Review of the Thermohydraulic Improvement Potentials in Solar Air Heaters through an Energy and Exergy Analysis.

Author

Hassan, Ali, Nikbakht, Ali M., Fawzia, Sabrina, Yarlagadda, Prasad, and Karim, Azharul

Subjects
SOLAR air heaters, HEAT storage, SOLAR radiation, EXERGY, COMPUTATIONAL fluid dynamics, SOLAR heating, RENEWABLE energy sources, SOLAR collectors
Abstract

Supply disruptions, uncertainty, and unprecedented price rises of fossil fuels due to the recent pandemic and war have highlighted the importance of using renewable sources to meet energy demands. Solar air collectors (SACs) are major types of solar energy systems that can be utilized for space and water heating, drying, and thermal energy storage. Although there is sufficient documentation on the thermal analyses of SACs, no comprehensive reviews of the exergetic performance or qualitative insight on heat conversion are available. The primary objective of this article is to provide a comprehensive review on the optimum conditions at which the thermal performance of diverse types of solar air collectors is optimized. The effect of operating parameters such as temperature rise, flow rate, geometric parameters, solar radiation, and the Reynolds number on the thermal performance of SACs in terms of thermal hydraulic performance, energy, and exergy efficiencies has been reviewed adaptively. Beyond the operating parameters, a deep investigation is outlined to monitor fluid dynamics using analytical and computational fluid dynamics (CFDs) methodologies in the technology of SACs. In the third phase, thermodynamic irreversibility due to optical losses, thermal losses between absorber and environment, heat losses due to insulation, edge losses, and entropy generation are reported and discussed, which serve as the fundamental tools for optimization purposes. [ABSTRACT FROM AUTHOR]

Published
2024
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