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- Title
Numerical Study of N-Eicosane Melting Inside a Horizontal Cylinder for Different Loading Rates.
- Authors
Benbrika, Mebrouk; Teggar, Mohamed; Benbelhout, Mohamed; Ismail, Kamal Abdel Radi
- Abstract
This paper investigates numerically the melting of n-eicosane inside horizontal cylinders. The cylinders are embedded in a storage tank where hot air flows parallel to the cylinders during the charging process. The 2D mathematical model is based on the enthalpy-porosity method. To solve the conservation equations (continuity, momentum and energy), a CFD commercial software is employed. Numerical predictions are validated by comparison with benchmark results available in the literature. The melting characteristics of n-eicosane in horizontal cylinders are presented. The phase change dynamics, temperature distributions and melt flow patterns are analyzed. The effect of heating rate is investigated. Results show that after certain time natural heat convective currents have not the same positive effect on the melting rate due to the continuous heating of the upper melt in the enclosure; which contributes to lower the thermal charging time. Low heating rate (h=25 W m-2 K) intensifies this negative effect.
- Subjects
MELTING; AIR flow; STORAGE tanks; TEMPERATURE distribution; HEAT storage; QUASISTATIC processes
- Publication
International Journal of Heat & Technology, 2020, Vol 38, Issue 1, p125
- ISSN
0392-8764
- Publication type
Article
- DOI
10.18280/ijht.380113