| Autor: |
Dwi Rahmalina, Reza Abdu Rahman, Ismail |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Case Studies in Thermal Engineering, Vol 31, Iss , Pp 101840- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2214-157X |
| DOI: |
10.1016/j.csite.2022.101840 |
| Popis: |
In this work, form-stabilized PCM (SSPCM) is evaluated for an active latent heat storage (ALHS) system. High-density polyethylene (HDPE) and styrene-butadiene-styrene (SBS) are used as supporting materials. Four different composites are prepared based on weight ratio: pure paraffin (P), paraffin/HDPE (80/20), paraffin/SBS (80/20), and paraffin/HDPE/SBS (80/20 + 20). The variation in the thermal conductivity depends on the supporting material where HDPE is good at solid-phase and SBS in liquid-phase. According to the DSC results, the supercooling degree is decreased for the all-composite SSPCM with the lowest supercooling degree by 0.6 °C for paraffin/SBS. The thermogravimetric results for composite SSPCM show a higher temperature decomposition with multi-step degradation. The thermal performance of the sample is assessed by using a tube-in-shell heat exchanger. The isothermal phase transition is observed for all composite SSPCM with the lowest temperature gradient by 5 °C. The composite SSPCM has a higher storage efficiency ranging from 85.6 to 88.4% than pure paraffin, with a storage efficiency of 72.3%. With a stable phase transition and a better storage efficiency, the proposed SSPCM can improve paraffin-based ALHS. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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