Heat transfer of microencapsulated PCM slurry flow in a circular tube

Xichun Wang; Jianlei Niu; Yi Li; Yinping Zhang; Xin Wang; Binjiao Chen; Ruolang Zeng; Qingwen Song

doi:10.1002/aic.11431

Heat transfer of microencapsulated PCM slurry flow in a circular tube

Xichun Wang, Jianlei Niu, Yi Li, Yinping Zhang, Xin Wang, Binjiao Chen, Ruolang Zeng, Qingwen Song

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

95 Citations (Scopus)

Abstract

Heat transfer characteristics of microencapsulated phase change material (MPCM) slurry flow in a circular horizontal tube are presented in this paper. Phase change due to the melting is investigated for water-based slurries using microencapsulated 1-bromohexadecane (C16H33Br) with a mass concentrations varying from O to 27.6%. The local heat transfer coefficients varied significantly along the test section when PCM particles were melting. The average Nusselt numbers were calculated based on the local heat transfer data and found to be significantly higher than those for singlephase fluid flow. Two new heat transfer correlations, one used for the slurry under laminar condition (O < Re < 2000) and another used for the slurry under slightly turbulent condition (2200 < Re < 3500), were proposed for predicting the heat transfer behaviors of MPCM slurry in a circular tube.

Original language	English
Pages (from-to)	1110-1120
Number of pages	11
Journal	AICHE Journal
Volume	54
Issue number	4
DOIs	https://doi.org/10.1002/aic.11431
Publication status	Published - 1 Apr 2008

Keywords

Average Nusselt number
Local nusselt number
MPCM slurry
Phase change
Test section

ASJC Scopus subject areas

Biotechnology
Environmental Engineering
General Chemical Engineering

More information

10.1002/aic.11431

Cite this

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abstract = "Heat transfer characteristics of microencapsulated phase change material (MPCM) slurry flow in a circular horizontal tube are presented in this paper. Phase change due to the melting is investigated for water-based slurries using microencapsulated 1-bromohexadecane (C16H33Br) with a mass concentrations varying from O to 27.6%. The local heat transfer coefficients varied significantly along the test section when PCM particles were melting. The average Nusselt numbers were calculated based on the local heat transfer data and found to be significantly higher than those for singlephase fluid flow. Two new heat transfer correlations, one used for the slurry under laminar condition (O < Re < 2000) and another used for the slurry under slightly turbulent condition (2200 < Re < 3500), were proposed for predicting the heat transfer behaviors of MPCM slurry in a circular tube.",

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AU - Wang, Xichun

AU - Niu, Jianlei

AU - Li, Yi

AU - Zhang, Yinping

AU - Wang, Xin

AU - Chen, Binjiao

AU - Zeng, Ruolang

AU - Song, Qingwen

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N2 - Heat transfer characteristics of microencapsulated phase change material (MPCM) slurry flow in a circular horizontal tube are presented in this paper. Phase change due to the melting is investigated for water-based slurries using microencapsulated 1-bromohexadecane (C16H33Br) with a mass concentrations varying from O to 27.6%. The local heat transfer coefficients varied significantly along the test section when PCM particles were melting. The average Nusselt numbers were calculated based on the local heat transfer data and found to be significantly higher than those for singlephase fluid flow. Two new heat transfer correlations, one used for the slurry under laminar condition (O < Re < 2000) and another used for the slurry under slightly turbulent condition (2200 < Re < 3500), were proposed for predicting the heat transfer behaviors of MPCM slurry in a circular tube.

AB - Heat transfer characteristics of microencapsulated phase change material (MPCM) slurry flow in a circular horizontal tube are presented in this paper. Phase change due to the melting is investigated for water-based slurries using microencapsulated 1-bromohexadecane (C16H33Br) with a mass concentrations varying from O to 27.6%. The local heat transfer coefficients varied significantly along the test section when PCM particles were melting. The average Nusselt numbers were calculated based on the local heat transfer data and found to be significantly higher than those for singlephase fluid flow. Two new heat transfer correlations, one used for the slurry under laminar condition (O < Re < 2000) and another used for the slurry under slightly turbulent condition (2200 < Re < 3500), were proposed for predicting the heat transfer behaviors of MPCM slurry in a circular tube.

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KW - Local nusselt number

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KW - Test section

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Heat transfer of microencapsulated PCM slurry flow in a circular tube

Abstract

Keywords

ASJC Scopus subject areas

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