Investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storage
This study investigates the effect of changing eccentricity and shell diameter on the charging performance of latent heat thermal energy storage systems (LHTES). A three-dimensional numerical model was developed to simulate the melting process of erythritol as a phase change material (PCM) in a hori...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24016794 |
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| author | Amr Rabiea Taher Halawa |
| author_facet | Amr Rabiea Taher Halawa |
| author_sort | Amr Rabiea |
| collection | DOAJ |
| description | This study investigates the effect of changing eccentricity and shell diameter on the charging performance of latent heat thermal energy storage systems (LHTES). A three-dimensional numerical model was developed to simulate the melting process of erythritol as a phase change material (PCM) in a horizontal double pipe heat exchanger. The results demonstrate that increasing eccentricity significantly enhances charging performance, with optimal relative eccentricity values between 0.6 and 0.7 across various shell diameters. Under optimal conditions, all shell diameters showed at least a 32 % improvement in charging efficiency, reducing charging time by a minimum of approximately 4 h. Larger shell diameters showed greater sensitivity to eccentricity changes, with charging time reductions up to 43 % for a 133 mm shell. The study also reveals that eccentricity promotes more uniform temperature profiles and accelerates the charging process by enhancing natural convection. These findings provide valuable insights for optimizing latent heat thermal energy storage designs, particularly for larger-scale applications. |
| format | Article |
| id | doaj-art-7b3632df795c4423a599e7ea350ad218 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-7b3632df795c4423a599e7ea350ad2182025-01-08T04:52:46ZengElsevierCase Studies in Thermal Engineering2214-157X2025-01-0165105648Investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storageAmr Rabiea0Taher Halawa1Mechanical Engineering Department, Faculty of Engineering, The British University in Egypt, El-Sherouk City, Cairo, 11837, Egypt; Diverse Supplies, LLC, 1st Settlement, New Cairo, EgyptMechanical Power Engineering Department, Faculty of Engineering, Cairo University, Giza, 12613, Egypt; Mechanical Engineering Department, Faculty of Engineering, The British University in Egypt, El-Sherouk City, Cairo, 11837, Egypt; Corresponding author. Mechanical Power Engineering Department, Engineering, Cairo University, 12613, Giza, Egypt.This study investigates the effect of changing eccentricity and shell diameter on the charging performance of latent heat thermal energy storage systems (LHTES). A three-dimensional numerical model was developed to simulate the melting process of erythritol as a phase change material (PCM) in a horizontal double pipe heat exchanger. The results demonstrate that increasing eccentricity significantly enhances charging performance, with optimal relative eccentricity values between 0.6 and 0.7 across various shell diameters. Under optimal conditions, all shell diameters showed at least a 32 % improvement in charging efficiency, reducing charging time by a minimum of approximately 4 h. Larger shell diameters showed greater sensitivity to eccentricity changes, with charging time reductions up to 43 % for a 133 mm shell. The study also reveals that eccentricity promotes more uniform temperature profiles and accelerates the charging process by enhancing natural convection. These findings provide valuable insights for optimizing latent heat thermal energy storage designs, particularly for larger-scale applications.http://www.sciencedirect.com/science/article/pii/S2214157X24016794Thermal energy storageLatent heatPhase change materialComputational fluid dynamicsHeat transfer enhancementEccentricity |
| spellingShingle | Amr Rabiea Taher Halawa Investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storage Case Studies in Thermal Engineering Thermal energy storage Latent heat Phase change material Computational fluid dynamics Heat transfer enhancement Eccentricity |
| title | Investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storage |
| title_full | Investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storage |
| title_fullStr | Investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storage |
| title_full_unstemmed | Investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storage |
| title_short | Investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storage |
| title_sort | investigation of the effect of eccentricity and shell diameter on the charging performance of erythritol for thermal energy storage |
| topic | Thermal energy storage Latent heat Phase change material Computational fluid dynamics Heat transfer enhancement Eccentricity |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24016794 |
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