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Journal of Enhanced Heat Transfer
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ISSN Imprimir: 1065-5131
ISSN En Línea: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v9.i1.40
pages 39-46

The Specific Heat at Constant Pressure in the Latent Functional Fluid with Microencapsulated Phase-Change Materials

Wen-Qiang Lu
Division of Thermal Science, Department of Physics, The Graduate School of the Chinese Academy of Sciences, Beijing, People's Republic of China
Fengwu Bai
Division of Thermal Science, Department of Physics, The Graduate School of the Chinese Academy of Sciences, Beijing, People's Republic of China

SINOPSIS

The specific heat at constant pressure is an important thermo-physical parameter in the latent functional fluid with microencapsulated phase-change materials. It expresses the special function of the functional fluid. However, a uniform and correct formula to calculate the specific heat has been lacking. In this paper, on the basis of the theorem of thermodynamics and two-phase flow, the relation between the specific heat of the mixture and every phase, and the latent heat, the volume fraction, the mass fraction of every phase, and other thermophysical parameters is theoretically deduced by a thermodynamic derivative method. The effect of different physical parameters on the specific heat of the mixture is further discussed.