Inner tube rotation decreases melting efficiency in a triple-tube latent heat storage system with a rotating middle tube

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-03-11 DOI:10.1016/j.icheatmasstransfer.2025.108835

Amin Shahsavar, Aydin Shaham

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引用次数: 0

Abstract

Improving the performance of latent heat storage systems is essential because it can help to increase energy efficiency and reduce the consumption of fuel resources. These improvements will ultimately lead to more sustainable development of thermal systems and reduction of environmental impacts. In this study, a numerical investigation is conducted to determine whether a triple-tube latent heat storage system with a counter-clockwise rotating middle tube containing PCM performs better with a stationary or rotating interior tube containing hot water flow. The effect of the interior tube rotation speed (ranging from −2 to 2 rad/s in increments of 0.25 rad/s) on the time variation of overall and local values of the liquid fraction and temperature of the PCM was analyzed. The results showed that the system with a stationary interior tube outperformed those with a rotating interior tube in terms of melting efficiency. The PCM melting time for the system with a stationary interior tube was 481.8 s, while the shortest melting time among the rotating systems (486.6 s) occurred when the interior tube rotated clockwise at a speed of 2 rad/s. Conversely, the longest melting time (789 s) was observed when the interior tube rotated at 2 rad/s clockwise.

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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.