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Dynamic Heat Transfer Characteristics Modeling of Microencapsulated Phase Change Material Slurries
Author(s) -
Chen Z.,
Shan F.,
Fang G.Y.
Publication year - 2012
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201100601
Subject(s) - heat transfer coefficient , heat transfer , thermodynamics , convective heat transfer , slurry , materials science , phase change material , mass transfer , churchill–bernstein equation , film temperature , heat flux , tube (container) , reynolds number , mass transfer coefficient , critical heat flux , phase (matter) , mechanics , chemistry , phase change , composite material , nusselt number , turbulence , physics , organic chemistry
Convective heat transfer characteristics of microencapsulated phase change material slurries (MPCSs) flowing in a circular tube under constant heat flux are studied and a feasible heat transfer model is presented. The heat transfer coefficient of MPCS and the wall temperature of the circular tube are simulated. The simulation results agree qualitatively with the experimental results. The effects of Stefan (Ste) number, mass concentration, phase change temperature range, and Reynolds (Re) number on heat transfer characteristics are discussed. The results indicate that the Ste‐number and mass fraction are the most important parameters influencing heat transfer properties compared to the phase change temperature range and Re‐number which less affect these characteristics.