Conjugate Heat Transfer Analysis of PCM Suspensions in a Circular Tube under External Cooling Convection: Wall Conduction Effects

Autor:	C. J. Ho, Z.C. Wang, R.H. Chen, Chi-Ming Lai
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	phase-change material heat transfer enhancement latent heat thermosyphon Technology Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Zdroj:	Applied Sciences, Vol 10, Iss 6, p 2034 (2020)
Druh dokumentu:	article
ISSN:	2076-3417 81986467
DOI:	10.3390/app10062034
Popis:	In this paper, a numerical method is used to investigate the conjugate heat transfer of a phase change material (PCM) suspension in a circular tube under external cooling convection. The following parameters and ranges were considered: dimensionless tube wall thickness, t w (0−0.5); wall-to-fluid thermal conductivity ratio, k w f * (0.1−10); volumetric fraction of PCM particles, c v (0.1); Biot number, B i o (1); Stefan number, Ste (0.1); and Peclet number, Pe (1000). The results show that the wall thermal conductivity considerably affects the outer/inner wall temperature of the tube, the average temperature of the working fluid, and the volumetric liquid fraction of PCM particles. Thus, wall conduction effects must be properly accounted for to model heat transfer in a PCM suspension in tube flow.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/b84ae2a8198646778a1afae1b88b852c Zobrazit plný text záznamu View record in DOAJ