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361.
Multiobjective optimization of free convection through a nonuniform cabinet filled with porous media
In the current study, multiobjective optimization and numerical simulation were used to evaluate free convection through a nonuniform cabinet, which has several technical applications, such as cooling techniques, solar air collectors, and heat sinks. The new aspect of the current study is to compute the maximum free convection within an irregular L-shaped cavity filled with porous media using both computational analysis and response surface methodology (RSM). Moreover, the impacts of constant coefficients, such as aspect ratios of the horizontal (ARh), vertical (ARv), and Darcy numbers (Da) on the Nusselt number (Nuave), Nusselt number maximization (NNM), the temperature of the surface (Ts), and entropy (S) are studied and discussed to evaluate their effect on the thermal performance. The results showed that when Da, ARh, and ARv increase, Nuave improves while the Ts and S decline and the largest desirability is achieved at ARh = 0.9, ARv = 0.9, and Da = 10−1. Additionally, when compared with the subpar design data, the largest gain in NNM was 26.7 times, while the biggest decreases in surface temperature and entropy were 59% and 97%, respectively. As a result, the combination of the numerical simulation and RSM study produces a novel strategy and insightful suggestions for the ideal cooling L-shaped cabinet design. 相似文献
362.
Abdel Maksoud M. I. A. Sallam O. I. Kassem Said M. Fahim Ramy Amer Awed A. S. 《Journal of Inorganic and Organometallic Polymers and Materials》2022,32(9):3533-3545
Journal of Inorganic and Organometallic Polymers and Materials - Herein, this study introduced a novel strategy for hazardous cement bypass dust (CBD) removal via incorporated it into glassy system... 相似文献
363.
Awsaf Alsulami Majed Alharbi Fadhel Alsaffar Olaiyan Alolaiyan Ghadeer Aljalham Shahad Albawardi Sarah Alsaggaf Faisal Alamri Thamer A. Tabbakh Moh R. Amer 《Small (Weinheim an der Bergstrasse, Germany)》2023,19(11):2205763
Recent reports on thermal and thermoelectric properties of emerging 2D materials have shown promising results. Among these materials are Zirconium-based chalcogenides such as zirconium disulfide (ZrS2), zirconium diselenide (ZrSe2), zirconium trisulfide (ZrS3), and zirconium triselenide (ZrSe3). Here, the thermal properties of these materials are investigated using confocal Raman spectroscopy. Two different and distinctive Raman signatures of exfoliated ZrX2 (where X = S or Se) are observed. For 2D-ZrX2, Raman modes are in alignment with those reported in literature. However, for quasi 1D-ZrX2, Raman modes are identical to exfoliated ZrX3 nanosheets, indicating a major lattice transformation from 2D to quasi-1D. Raman temperature dependence for ZrX2 are also measured. Most Raman modes exhibit a linear downshift dependence with increasing temperature. However, for 2D-ZrS2, a blueshift for A1g mode is detected with increasing temperature. Finally, phonon dynamics under optical heating for ZrX2 are measured. Based on these measurements, the calculated thermal conductivity and the interfacial thermal conductance indicate lower interfacial thermal conductance for quasi 1D-ZrX2 compared to 2D-ZrX2, which can be attributed to the phonon confinement in 1D. The results demonstrate exceptional thermal properties for Zirconium-based materials, making them ideal for thermoelectric device applications and future thermal management strategies. 相似文献