Enhancement performance of vapor compression system using nano copper oxide lubricant inside compressor and a fluidized bed for condenser cooling

Hussein, Asmaa Taha; Abedalh, Ayad S.

doi:10.1016/j.csite.2023.102819

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…Numerous scholars have investigated the diverse facets of heat transfer in fluidized beds, enhancing our comprehension of the intricate phenomena inherent in this mechanism and devising more effective and environmentally friendly technologies for applications encompassing combustion, chemical reactions, and particle drying [9][10][11][12][13][14][15]. The most recent experimental research has shown robust findings regarding the augmentation of heat transport in fluidized bed reactors [16][17][18]. Earlier investigations have primarily focused on modifying reactor configurations, improving gas distribution, and implementing surface treatments to enhance heat transfer rates.…”

Section: Introductionmentioning

confidence: 99%

Nano-Iron Oxide Coating for Enhanced Heat Transfer in Gas–Solid Fluidized Bed Systems

Faraj,

Ali,

Najim

et al. 2024

ChemEngineering

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This study explores using iron oxide coatings on glass beads to improve heat transfer efficiency in fluidized bed reactors. Techniques such as BET surface area analysis, SEM imaging, and X-ray diffraction were used to characterize the coated beads. Results showed the successful creation of a crystalline iron layer on the beads’ surface and increased thermal conductivity, especially at elevated temperatures. The study also quantified the impact of air surface velocity and heating power on the heat transfer coefficient, revealing substantial improvements, especially at higher velocities. It was found that the heat transfer coefficient for 600 µm glass beads increases significantly from 336.4 W/m2·K to 390.3 W/m2·K when the velocity is 0.27 m/s and the heating flux is 125 W. This demonstrates the effectiveness of the iron oxide coating in improving heat transfer. The results of this study emphasize the efficacy of iron oxide coatings in augmenting heat transmission characteristics, particularly in fluidized bed reactor.

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