The Effect of a Segmented Wall Filled With Phase Change Material on Heat Transfer and Airflow in a Closed CavitySource: Journal of Heat Transfer:;2021:;volume( 143 ):;issue: 009::page 093001-1DOI: 10.1115/1.4051600Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The heat transfer effect of a sectioned wall made of five volumes filled with a phase change material (PCM) coupled to an air cavity is presented. The analysis system was equipped with a heat source next to the sectioned wall and an opposite isothermal wall. The experimental study was carried out by measuring the temperature of the five PCM volumes, likewise in four profiles along the air cavity. For the numerical formulation of the phase change of the PCM wall, the enthalpy method was used. With the validated model, the temperature fields, velocity contours, liquid fraction contours, and heat transfer coefficients are presented and discussed. The comparison between the numerical model and the experimental data presented a general average percentage difference in the range of 3.8–7% for the temperature of the air profiles, while for the PCM was 0.9–3.2%. The numerical results showed that the amount of liquid PCM in the enclosure can be reduced by dividing the wall into segments. Additionally, the heat transfer mechanism of conduction was noted between PCM volumes due to the union of these.
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| contributor author | Orozco, D. A. | |
| contributor author | Hinojosa, J. F. | |
| contributor author | Amaya, K. | |
| date accessioned | 2022-02-06T05:34:31Z | |
| date available | 2022-02-06T05:34:31Z | |
| date copyright | 7/27/2021 12:00:00 AM | |
| date issued | 2021 | |
| identifier issn | 0022-1481 | |
| identifier other | ht_143_09_093001.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4278313 | |
| description abstract | The heat transfer effect of a sectioned wall made of five volumes filled with a phase change material (PCM) coupled to an air cavity is presented. The analysis system was equipped with a heat source next to the sectioned wall and an opposite isothermal wall. The experimental study was carried out by measuring the temperature of the five PCM volumes, likewise in four profiles along the air cavity. For the numerical formulation of the phase change of the PCM wall, the enthalpy method was used. With the validated model, the temperature fields, velocity contours, liquid fraction contours, and heat transfer coefficients are presented and discussed. The comparison between the numerical model and the experimental data presented a general average percentage difference in the range of 3.8–7% for the temperature of the air profiles, while for the PCM was 0.9–3.2%. The numerical results showed that the amount of liquid PCM in the enclosure can be reduced by dividing the wall into segments. Additionally, the heat transfer mechanism of conduction was noted between PCM volumes due to the union of these. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | The Effect of a Segmented Wall Filled With Phase Change Material on Heat Transfer and Airflow in a Closed Cavity | |
| type | Journal Paper | |
| journal volume | 143 | |
| journal issue | 9 | |
| journal title | Journal of Heat Transfer | |
| identifier doi | 10.1115/1.4051600 | |
| journal fristpage | 093001-1 | |
| journal lastpage | 093001-12 | |
| page | 12 | |
| tree | Journal of Heat Transfer:;2021:;volume( 143 ):;issue: 009 | |
| contenttype | Fulltext |