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Implementation Investigation of Solar Energy Storage System Enhancement by Spiral-Finned Tube Heat Exchanger | ||
| Journal of Solar Energy Research | ||
| دوره 11، شماره 2، تیر 2026، صفحه 2992-3009 اصل مقاله (1.27 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22059/jser.2026.411357.1724 | ||
| نویسندگان | ||
| Kadhim Suffer1؛ Hiba Hasan2؛ Vinous M Hameed* 3؛ Malek Khalaf4 | ||
| 1Mechanical Engineering Department, College of Engineering, Al-Nahrain University, Baghdad, Iraq | ||
| 2Mechanical Engineering Department, University of Technology, Baghdad, Iraq | ||
| 3Chemical Engineering Department, College of Engineering, Al-Nahrain University, Baghdad, Iraq | ||
| 4Department of Industrial Systems Engineering, Mutah University, Mutah, Alkarak 61710, Jordan | ||
| چکیده | ||
| This study verified paraffin wax as a phase change material (PCM), enhancing the performance of latent thermal energy storage. Computational Fluid Dynamics (CFD) software was used and validated by an experimental investigation to evaluate three vertical configurations of shell-and-tube heat exchangers: conventional (STHX), pin-finned (SFTHX), and a novel spiral wire-wound on pin fins (SSTHX). Water at 20°C was fed through the tube to initiate PCM solidification. The CFD models' results showed significant outperformance of SSWTHX compared to other models. It showed a complete solidification process in 3193 seconds, while SFTHX exhibited 4317 seconds and STHX 5710 seconds. These results show a significant improvement in PCM thermal energy storage efficiency of 44% and 25% over STHX and STHX models compared to the SSWTHX model. Under 3000 seconds of the solidification process, 98% of paraffinic wax solidified in the SSWTHX-model compared to 90% in SFTHX. The increment in the SSWTHX surface area and the presence of the spiral wire in the heat exchanger resulted in the performance enhancement. The CFD temperature distribution showed strong agreement with the experimental work, which validated the three CFD models. These results supported the SSWTHX configuration with a higher thermal solar storage efficiency system. | ||
| کلیدواژهها | ||
| Solar energy؛ CFD modelling؛ PCM؛ Latent heat storage؛ Finned tube؛ Solidification time | ||
| مراجع | ||
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