Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery
Organic phase change materials (PCMs) have been of increasing interest in battery thermal management due to their high latent heat and excellent cycling stability. This paper reports both numerical analysis and visualization experiments for the melting process of paraffin PCM surrounding a cylindric...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/142738 |
| _version_ | 1826126978493710336 |
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| author | Yang, Huan Zhang, Hengyun Sui, Yang Yang, Chun |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Yang, Huan Zhang, Hengyun Sui, Yang Yang, Chun |
| author_sort | Yang, Huan |
| collection | NTU |
| description | Organic phase change materials (PCMs) have been of increasing interest in battery thermal management due to their high latent heat and excellent cycling stability. This paper reports both numerical analysis and visualization experiments for the melting process of paraffin PCM surrounding a cylindrical power battery. Specifically, two different housing materials are considered, one made of metal and the other made of acrylics. For the metal housing case, the PCM exhibits a melting front isolated both from the battery and housing wall with accelerated melting in the B∼C stage, accounting for the isothermal temperature plateau observed in both the numerical modeling and experimental measurements. For the acrylic housing case, the unmelted PCM instead adheres to the inner wall of housing all the way, melting at the rate slower than the metal housing case. In both housing cases, the numerically predicted liquid fractions are found to agree with our experimentally visualized results. The battery top to bottom temperature variation is also examined with regard to the melting process. Moreover, the instantaneous Nusselt number is obtained to identify the different heat transfer characteristics in the different melting stages. |
| first_indexed | 2024-10-01T07:01:16Z |
| format | Journal Article |
| id | ntu-10356/142738 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:01:16Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1427382020-06-29T08:43:48Z Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery Yang, Huan Zhang, Hengyun Sui, Yang Yang, Chun School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Organic phase change materials (PCMs) have been of increasing interest in battery thermal management due to their high latent heat and excellent cycling stability. This paper reports both numerical analysis and visualization experiments for the melting process of paraffin PCM surrounding a cylindrical power battery. Specifically, two different housing materials are considered, one made of metal and the other made of acrylics. For the metal housing case, the PCM exhibits a melting front isolated both from the battery and housing wall with accelerated melting in the B∼C stage, accounting for the isothermal temperature plateau observed in both the numerical modeling and experimental measurements. For the acrylic housing case, the unmelted PCM instead adheres to the inner wall of housing all the way, melting at the rate slower than the metal housing case. In both housing cases, the numerically predicted liquid fractions are found to agree with our experimentally visualized results. The battery top to bottom temperature variation is also examined with regard to the melting process. Moreover, the instantaneous Nusselt number is obtained to identify the different heat transfer characteristics in the different melting stages. 2020-06-29T08:43:48Z 2020-06-29T08:43:48Z 2018 Journal Article Yang, H., Zhang, H., Sui, Y., & Yang, C. (2018). Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery. Applied Thermal Engineering, 128, 489-499. doi:10.1016/j.applthermaleng.2017.09.022 1359-4311 https://hdl.handle.net/10356/142738 10.1016/j.applthermaleng.2017.09.022 2-s2.0-85029485483 128 489 499 en Applied Thermal Engineering © 2017 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Yang, Huan Zhang, Hengyun Sui, Yang Yang, Chun Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery |
| title | Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery |
| title_full | Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery |
| title_fullStr | Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery |
| title_full_unstemmed | Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery |
| title_short | Numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery |
| title_sort | numerical analysis and experimental visualization of phase change material melting process for thermal management of cylindrical power battery |
| topic | Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/142738 |
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