Numerical investigation of the effect of simultaneous use of eccentricity and rotation on the entropy generation characteristics in a triplex-tube latent heat storage system
Shahsavar A, Yekta A (2024)
Publication Type: Journal article
Publication year: 2024
Journal
Book Volume: 156
Article Number: 107648
DOI: 10.1016/j.icheatmasstransfer.2024.107648
Abstract
Latent heat storage systems are vital for efficient energy management, offering a crucial means to store and release energy, thus enabling sustainable solutions for heating, cooling, and power generation. This study is the first research on how the eccentricity and rotation of the middle tube impact the entropy production characteristics of a triplex-tube latent heat storage system. The computational fluid dynamics is used to conduct the simulations. The system under investigation directs hot water through its inner and outer tubes, which results in the melting of the phase change material (PCM) located within the middle tube. The study delves into the influence of eccentricity magnitude (e=1–8 mm) and angle (α=0°-315°) on the entropy generation rate resulting from heat transfer and fluid friction. The findings revealed that eccentricity, in certain instances, leads to a reduction in both thermal (Ṡg,h) and frictional (Ṡg,f) entropy generation rates. Among the scenarios examined, Case e=6 mm and α=270° exhibits the lowest Ṡg,h of 19.434 W/K, while Case e=8 mm and α=270° demonstrates the highest Ṡg,h of 21.751 W/K. Moreover, Case e=5 mm and α=315° demonstrated the lowest Ṡg,f of 0.000359 W/K, while Case e=1 mm and α=45° showed the highest Ṡg,f of 0.002970 W/K.
Involved external institutions
Iran, Islamic Republic of (IR)How to cite
APA:
Shahsavar, A., & Yekta, A. (2024). Numerical investigation of the effect of simultaneous use of eccentricity and rotation on the entropy generation characteristics in a triplex-tube latent heat storage system. International Communications in Heat and Mass Transfer, 156. https://doi.org/10.1016/j.icheatmasstransfer.2024.107648
MLA:
Shahsavar, Amin, and Amir Yekta. "Numerical investigation of the effect of simultaneous use of eccentricity and rotation on the entropy generation characteristics in a triplex-tube latent heat storage system." International Communications in Heat and Mass Transfer 156 (2024).
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