Performance of a Simplified Computational Fluid Dynamics Model for a Phase Change Material–Water Finned Heat Exchanger Under Different Orientations
Fuente:
Wiley Open Access
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Artículo Open Access |
| Published: |
Wiley
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867021596349169665 |
|---|---|
| author | Francisco Javier González Gallero Gabriel González Siles Ismael Rodríguez Maestre Juan Luis Foncubierta Blázquez Luis Pérez‐Lombard |
| author_facet | Francisco Javier González Gallero Gabriel González Siles Ismael Rodríguez Maestre Juan Luis Foncubierta Blázquez Luis Pérez‐Lombard Francisco Javier González Gallero Gabriel González Siles Ismael Rodríguez Maestre Juan Luis Foncubierta Blázquez Luis Pérez‐Lombard |
| collection | Wiley Open Access |
| contents | Performance of a Simplified Computational Fluid Dynamics Model for a Phase Change Material–Water Finned Heat Exchanger Under Different Orientations Francisco Javier González Gallero Gabriel González Siles Ismael Rodríguez Maestre Juan Luis Foncubierta Blázquez Luis Pérez‐Lombard Energy Storage ABSTRACTThe prevalent numerical models for simulating axially finned heat exchangers with phase change materials (PCMs) and water as the heat transfer fluid rely on computational fluid dynamics (CFD) techniques, with a primary focus on phase change modeling. However, the computational demands of these models, incorporating phase change effects and resolving PCM movement in the liquid state, are substantial. From experiments suggesting that conduction in the solidified PCM around the finned tube dominates heat transfer during the heat discharge process, this article introduces a simplified CFD‐based model in which convective flow of the PCM is neglected. The model is experimentally validated using a 1‐m‐long axially finned heat exchanger prototype with four fins, recording temperatures under different water flow rates and orientations (horizontal and vertical). Results show that the proposed model predicts outlet water temperature satisfactorily, with absolute errors below 1.0°C and 2.2°C for the horizontal and vertical orientations, respectively. Additionally, the model can capture the temperature trend inside the PCM for the horizontal orientation. 10.1002/est2.70021 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| doi_str_mv | 10.1002/est2.70021 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_est2_70021 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Performance of a Simplified Computational Fluid Dynamics Model for a Phase Change Material–Water Finned Heat Exchanger Under Different Orientations Francisco Javier González Gallero Gabriel González Siles Ismael Rodríguez Maestre Juan Luis Foncubierta Blázquez Luis Pérez‐Lombard Energy Storage Performance of a Simplified Computational Fluid Dynamics Model for a Phase Change Material–Water Finned Heat Exchanger Under Different Orientations Francisco Javier González Gallero Gabriel González Siles Ismael Rodríguez Maestre Juan Luis Foncubierta Blázquez Luis Pérez‐Lombard Energy Storage ABSTRACTThe prevalent numerical models for simulating axially finned heat exchangers with phase change materials (PCMs) and water as the heat transfer fluid rely on computational fluid dynamics (CFD) techniques, with a primary focus on phase change modeling. However, the computational demands of these models, incorporating phase change effects and resolving PCM movement in the liquid state, are substantial. From experiments suggesting that conduction in the solidified PCM around the finned tube dominates heat transfer during the heat discharge process, this article introduces a simplified CFD‐based model in which convective flow of the PCM is neglected. The model is experimentally validated using a 1‐m‐long axially finned heat exchanger prototype with four fins, recording temperatures under different water flow rates and orientations (horizontal and vertical). Results show that the proposed model predicts outlet water temperature satisfactorily, with absolute errors below 1.0°C and 2.2°C for the horizontal and vertical orientations, respectively. Additionally, the model can capture the temperature trend inside the PCM for the horizontal orientation. 10.1002/est2.70021 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| title | Performance of a Simplified Computational Fluid Dynamics Model for a Phase Change Material–Water Finned Heat Exchanger Under Different Orientations |
| topic | Energy Storage |
| url | https://onlinelibrary.wiley.com/doi/10.1002/est2.70021 |