Numerical Simulation of Heat Transfer Characteristics of Melting Process of Paraffin Heat Storage Ball

Abstract:

In this paper, a paraffin heat storage ball whose diameter is 100mm is the research object. Two mathematical models of paraffin melting process are established respectively when the natural convection of liquid phase of paraffin is considered and ignored. The melting process of paraffin heat storage ball which initial temperature is 290K is simulated by using the solidification/melting model of FLUENT. Through analyzing the temperature distribution of the ball and proportion of solid-liquid phase in the ball in the melting process at a certain time, studying the time history of the proportion of liquid phase in the ball and the time history of the average temperature of the paraffin, we can find that the natural convection of liquid phase of paraffin can not be ignored in the melting process of paraffin heat storage ball whose diameter is 100mm.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 1690-1695
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.1690
• Online since: February 2013
• Authors: Shu Hui Xu, Guo Qiang Yang
• Keywords: Heat Storage Ball, Heat Transfer of Phase Change, Numerical Simulation, Paraffin

References

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[2] Hua Wang, Experimental Study on Composite Heat Storage Material with Metal and Molten, Kunming University of Science and Technology Master thesis, 2005, 8 (In Chinese).

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