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Characterizationof supercooling suppression of microencapsulated phase change material byusing DSC |
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| Authors: | J. L. Alvarado C. Marsh C. Sohn M. Vilceus V. Hock G. Phetteplace T. Newell |
| Affiliation: | (1) Department of Engineering Technology and Industrial Distribution, Texas A&M University, College Station, USA, 3367 TAMU, TX 77843-3367, 117 Thompson Hall;(2) U.S. Army, Engineer Research and Development Center, Construction Engineering Research Laboratory, Champaign, USA, 61822-1076, Illinois, 2902 Newmark, Drive;(3) U.S. Army, Engineer Research and Development Center, Cold Regions Research and Engineering Laboratory, Hanover, USA, 03755-1290, New Hampshire, 72 Lyme Road;(4) Mechanical and Industrial Engineering Department, University of Illinois at Urbana-Champaign, Urbana, USA, 61801, Illinois, 140 Mechanical Engineering Building, 206 West Green Street |
| Abstract: | Supercooling suppression of microencapsulated n-tetradecane was measured using differential scanning calorimetry. Results indicate that the degree of supercooling is positively affected by the amount and type of nucleating agent present in bulk and microencapsulated n-tetradecane which it is used as a phase change material (MPCM). Results also demonstrate that the melting point of the n-tetradecane is fairly independent of nucleating agent concentration (0 – 4%). Conversely, the latent heat of fusion of n-tetradecane decreases considerably with nucleating agent amount and the initiation of crystallization point is inversely proportional to cooling rate. |
| Keywords: | cooling rate crystallization point DSC latent heat of fusion melting point microencapsulated phase change material |
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