Статья

Performance characteristics of PCM based thermal energy storage system for fluctuating waste heat sources

Faraz Kaiser MalikDepartment of Mechanical Engineering, Capital University of Science and Technology, Islamabad, 45750, PakistanMuhammad Mahabat KhanDepartment of Mechanical Engineering, Capital University of Science and Technology, Islamabad, 45750, PakistanHassan AhmedDepartment of Mechanical Engineering, Capital University of Science and Technology, Islamabad, 45750, PakistanMuhammad IrfanDepartment of Mechanical Engineering, Capital University of Science and Technology, Islamabad, 45750, PakistanInam Ul AhadI-Form, the SFI Centre for Advanced Manufacturing, School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin, Ireland

2022en

ABI

Аннотация

The large temperature fluctuations of industrial waste heat pose great economic and operational challenge for the feasibility of industrial waste heat recovery systems. In this regard, Phase Change Material (PCM) based Thermal Energy Storage (TES) systems can effectively dampen large thermal fluctuations during the charging cycle. The current work focuses on the assessment of the performance of a shell and tube latent TES unit when subjected to fluctuating thermal cycles of waste heat from clinker cooling process (420K − 600K) as Cycle 1 & 2 and internal combustion engines (360K − 780K) as Cycle 3–5, using HITEC® industrial salt as PCM. The complete melting time of PCM for Cycle 1 is 41.6% higher than Cycle 2 whereas the average PCM temperature for Cycle 1 is found to be 9.3% lower than for Cycle 2. Similarly, Cycle 5 accelerates the PCM melting by 37.4% and 33.3% as compared to Cycle 3 and Cycle 4. The sharp dips in source temperatures decelerate the melting process and cause localized re-solidification of PCM. The PCM dampens the source temperature fluctuations by more than 80%. The constant overall PCM melting time for both fluctuating and mean temperature sources indicate the effectiveness of latent TES system.

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Идентификаторы

DOI: 10.1016/j.csite.2022.102012

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar