Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31914
Title: Heat transfer of microencapsulated PCM slurry flow in a circular tube
Authors: Wang, X
Niu, J 
Li, Y
Zhang, Y
Wang, X
Chen, B
Zeng, R
Song, Q
Issue Date: 2008
Source: AIChE journal, 2008, v. 54, no. 4, p. 1110-1120
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.
Keywords: Average Nusselt number
Local nusselt number
MPCM slurry
Phase change
Test section
Publisher: John Wiley & Sons Inc
Journal: AIChE Journal 
DOI: 10.1002/aic.11431
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