Browse > Article
http://dx.doi.org/10.6110/KJACR.2014.26.7.301

Analysis of the Charging and Discharging Performance of a New Wavy Cylindrical Shape Capsule  

Hong, Sang Woo (Department of Mechanical Engineering, Sejong University)
Lee, Yong Tae (Department of Mechanical Engineering, Sejong University)
Chung, Jae Dong (Department of Mechanical Engineering, Sejong University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.26, no.7, 2014 , pp. 301-307 More about this Journal
Abstract
This paper presents a numerical study on the constrained melting of a phase change material inside various capsule containers, using water and HDPE (High Density Polyethylene) as a PCM and a capsule material, respectively. The computations are based on an iterative, finite-volume numerical procedure that incorporates a single-domain enthalpy formulation for simulation of the phase change phenomenon. Using the enthalpy method, various capsule configurations, such as a capsule from E company, an isochoric cylinder capsule, an equivalent diameter sphere capsule, and an isochoric sphere capsule, are used to investigate the effect of capsule configurations on the charging and discharging performance. A transient three-dimensional model is used for each case. The simulation results show that the capsule from E company results in a higher melting and solidification rate of the PCM, than the other capsule configurations considered in this research.
Keywords
Charging performance; Discharging performance; PCM; Enthalpy method;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Swaminathan, C. R. and Voller, V. R., 1992, A general enthalpy method for modeling solidification processes, Metallurgical Transcation B, Vol. 23, No. 5, pp. 651-664.
2 Lee, Y. T., Hong, S. W., and Chung, J. D., 2013, Numerical analysis of phase change problem in a spherical capsule, Proceedings of the KSME 2013 Autumn Annual Conference, Vol. 2013, No. 12, pp. 748-751.
3 Chung, J. D., Lee, J. S., and Yoo, H. S., 1997, Thermal instability during the melting process in an isothermally heated horizontal cylinder, International Journal of Heat and Mass Transfer, Vol. 40, No. 16, pp. 3899-3907.   DOI   ScienceOn
4 Ho, C. J. and Viskanta, R., 1984, Heat transfer during inward melting in a horizontal tube, International Journal of Heat and Mass Transfer, Vol. 27, No. 5, pp. 705-716.   DOI   ScienceOn
5 Tan, F. L., Hosseinizadeh, S. F., Khodadadi, J. M. and Fan, L., 2009, Experimental and computational study of constrained melting of phase change materials (PCM) inside a spherical capsule, International Journal of Heat and Mass Transfer, Vol. 52, No. 15-16, pp. 3464-3472.   DOI   ScienceOn
6 Assis, E., Katsman, L., Ziskind, G., and Letan, R., 2007, Numerical and experimental study of melting in a spherical shell, International Journal of Heat and Mass Transfer, Vol. 50, No. 9-10, pp. 1790-1804.   DOI   ScienceOn
7 Hosseinizadeh, S. F., Darzi, A. A. R., Tan, F. L., and Khodadadi, J. M., 2013, Unconstrained melting inside a sphere, International Journal of Thermal Sciences, Vol. 63, pp. 55-64.   DOI   ScienceOn
8 STAR-CCM+7.04 User Guide, 2012, CD-Adapco.
9 Hosseinizadeh, S. F., Darzi, A. A. R., and Tan, F. L., 2012, Numerical investigations of unconstrained melting of nano-enhanced phase change materical(NEPCM) inside a spherical container, International Journal of Thermal Sciences, Vol. 51, pp. 77-83.   DOI   ScienceOn