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The Utilization of MPCM Slurry for a Cooling System  

Lee Hyo-Jin (Department of Building Service Engineering, Hanbat National University)
Lee Jae-Goo (Clean Energy Research Department, KIER)
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International Journal of Air-Conditioning and Refrigeration / v.13, no.4, 2005 , pp. 175-183 More about this Journal
The present study has been conducted for manufacturing MPCM (microencapsulated phase change material) slurry with in-situ polymerization and proving their applicabilities for cooling system. The tetradecane as a core material of MPCM is coated with melamine. The produced capsules are observed by the optical microscope and SEM for superficial shapes and analysed their properties by DSC and particle size distribution by FA particle analyzer. It is found that narrow size distribution in 1 to $10{\mu}m$ is resulted in $5{\mu}m$ of average diameter and $9^{\circ}C$ melting temperature. The durability of MPCM capsules is tested with various types of pumps such as centrifugal, peristaltic, and mono. For the centrifugal and peristaltic pumps the breakage fraction of the capsules is resulted within $6\%$ during 10,000 cycles, while the mono is over $8\%$. The cooling system, which has adopted MPCM slurry as a medium for transporting cold thermal energy, is designed to investigate the performance of newly developed coolant. The discharging times of cold energy in circulating 10 and $20wt\%$ MPCM slurry are lasted to 105 and 285 minutes, respectively.
MPCM; PCM; Microencapsulation; Durability; Cooling system;
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1 Mulligan, J. C., Colvin, P. D. and Bryant, Y. G., 1994, Use of two component fluids of microencapsulated phase-change materials for heat transfer in spacecraft thermal systems, AIAA 94-2004
2 Thies, C. 1994, Microencapsulation, Thies Technology
3 Telkes, M., 1962, Development of High Capacity Heat Storage Materials, Phase I, Study of Materials, Massachusetts Institute of Technology Instrumentation Laboratory (M.I.T. Lab Instrumentation Lab, R-380), Cambridge, MA
4 Goel, M., Roy, S. K. and Sengupta, S., 1994, Laminar forced convection heat transfer in microencapsulated phase change material suspensions, Int. J. Heat Mass Transfer, Vol. 37, No.4, pp. 593-604   DOI   ScienceOn
5 Mehalick, E. M. and Tweedie, A. T., 1979, Two-component thermal energy storage material, COO-2845-78/2, pp.85-90
6 Takeuchi, H., Pyatenko, A., Yamagishi, Y., Sugeno, T. and Ishige, T., 1998, Characteristic of microencapsulated phase change materials slurry as energy transportation refrigerant, Thermal Science & Engineering, Vol. 6, No.1, pp. 163-167
7 Core, K. L., 1987, The Use of Microencapsulated Phase-Change Materials to Enhance Heat Transfer in Liquid-Coupled Heat Exchange Systems, M.S. Thesis, North Carolina State University, Raleigh, North Carolina
8 Inaba, H., 1997, Current status of research on functionally thermal fluid, Experimental Heat Transfer, Fluid Mechanics and Thermodynamics, pp.417-427
9 Yamagishi, Y., 1999, Characteristics of microencapsulated PCM slurry as a heattransfer fluid, AIChE Journal, Vol. 45, No.4, pp.696-707   DOI   ScienceOn
10 Yamagishi, Y., Sugeno, T., Ishige, T., Takeuchi, H. and Pyatenko, A., 1996, An evaluation of microencapsulated PCM for use in cold energy transportation medium, IECEC96, pp.2077-2082