Analysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)2·8H2O

Benefitting from the characteristics of a high latent heat capacity and stable phase change behavior, phase change materials have widely received concerns in the field of thermodynamic management. Ba(OH)2·8H2O is an ideal phase change material (PCM) in t...

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Autores principales:	Xiaohui Lu, Xiaoxue Luo, Shibo Cao, Changzhen Zou
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	phase change Ba(OH)<sub>2</sub>·8H<sub>2</sub>O nucleation supercooling latent heat Technology T
Acceso en línea:	https://doaj.org/article/561fc0833e5e43018ccf1ac474aa8b23
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id	oai:doaj.org-article:561fc0833e5e43018ccf1ac474aa8b23
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spelling	oai:doaj.org-article:561fc0833e5e43018ccf1ac474aa8b232021-11-25T17:28:33ZAnalysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)<sub>2</sub>·8H<sub>2</sub>O10.3390/en142277611996-1073https://doaj.org/article/561fc0833e5e43018ccf1ac474aa8b232021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7761https://doaj.org/toc/1996-1073Benefitting from the characteristics of a high latent heat capacity and stable phase change behavior, phase change materials have widely received concerns in the field of thermodynamic management. Ba(OH)<sub>2</sub>·8H<sub>2</sub>O is an ideal phase change material (PCM) in the mid-to-low temperature range, but its large-scale application is still limited by severe supercooling during the nucleation process. In this paper, the experimental analysis and comparison are performed via an Edisonian approach, where Ba(OH)<sub>2</sub>·8H<sub>2</sub>O is adopted as an original substrate; BaCO<sub>3</sub>, CaCl<sub>2</sub>, NaCl, KH<sub>2</sub>PO<sub>4</sub>, and NaOH are selected as nucleating agents; and graphite is used as a heat-conducting agent. The results show that Ba(OH)<sub>2</sub>·8H<sub>2</sub>O containing 1.2% BaCO<sub>3</sub> and 0.2% graphite powder has the best performance. Compared with pure Ba(OH)<sub>2</sub>·8H<sub>2</sub>O, the supercooling degree is reduced to less than 1 °C, the phase change latent heat duration is extended, and the thermal conductivity is significantly improved. Therefore, this study not only provides a reference for the application of Ba(OH)<sub>2</sub>·8H<sub>2</sub>O, but can also be used as a guidance for other material modifications.Xiaohui LuXiaoxue LuoShibo CaoChangzhen ZouMDPI AGarticlephase changeBa(OH)<sub>2</sub>·8H<sub>2</sub>Onucleationsupercoolinglatent heatTechnologyTENEnergies, Vol 14, Iss 7761, p 7761 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	phase change Ba(OH)<sub>2</sub>·8H<sub>2</sub>O nucleation supercooling latent heat Technology T
spellingShingle	phase change Ba(OH)<sub>2</sub>·8H<sub>2</sub>O nucleation supercooling latent heat Technology T Xiaohui Lu Xiaoxue Luo Shibo Cao Changzhen Zou Analysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)<sub>2</sub>·8H<sub>2</sub>O
description	Benefitting from the characteristics of a high latent heat capacity and stable phase change behavior, phase change materials have widely received concerns in the field of thermodynamic management. Ba(OH)<sub>2</sub>·8H<sub>2</sub>O is an ideal phase change material (PCM) in the mid-to-low temperature range, but its large-scale application is still limited by severe supercooling during the nucleation process. In this paper, the experimental analysis and comparison are performed via an Edisonian approach, where Ba(OH)<sub>2</sub>·8H<sub>2</sub>O is adopted as an original substrate; BaCO<sub>3</sub>, CaCl<sub>2</sub>, NaCl, KH<sub>2</sub>PO<sub>4</sub>, and NaOH are selected as nucleating agents; and graphite is used as a heat-conducting agent. The results show that Ba(OH)<sub>2</sub>·8H<sub>2</sub>O containing 1.2% BaCO<sub>3</sub> and 0.2% graphite powder has the best performance. Compared with pure Ba(OH)<sub>2</sub>·8H<sub>2</sub>O, the supercooling degree is reduced to less than 1 °C, the phase change latent heat duration is extended, and the thermal conductivity is significantly improved. Therefore, this study not only provides a reference for the application of Ba(OH)<sub>2</sub>·8H<sub>2</sub>O, but can also be used as a guidance for other material modifications.
format	article
author	Xiaohui Lu Xiaoxue Luo Shibo Cao Changzhen Zou
author_facet	Xiaohui Lu Xiaoxue Luo Shibo Cao Changzhen Zou
author_sort	Xiaohui Lu
title	Analysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)<sub>2</sub>·8H<sub>2</sub>O
title_short	Analysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)<sub>2</sub>·8H<sub>2</sub>O
title_full	Analysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)<sub>2</sub>·8H<sub>2</sub>O
title_fullStr	Analysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)<sub>2</sub>·8H<sub>2</sub>O
title_full_unstemmed	Analysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)<sub>2</sub>·8H<sub>2</sub>O
title_sort	analysis on the improvement of thermal performance of phase change material ba (oh)<sub>2</sub>·8h<sub>2</sub>o
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/561fc0833e5e43018ccf1ac474aa8b23
work_keys_str_mv	AT xiaohuilu analysisontheimprovementofthermalperformanceofphasechangematerialbaohsub2sub8hsub2subo AT xiaoxueluo analysisontheimprovementofthermalperformanceofphasechangematerialbaohsub2sub8hsub2subo AT shibocao analysisontheimprovementofthermalperformanceofphasechangematerialbaohsub2sub8hsub2subo AT changzhenzou analysisontheimprovementofthermalperformanceofphasechangematerialbaohsub2sub8hsub2subo
_version_	1718412283622719488

Analysis on the Improvement of Thermal Performance of Phase Change Material Ba (OH)<sub>2</sub>·8H<sub>2</sub>O

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