Title: | Mathematical modelling and experimental investigation of melting and solidification in a finned phase change material storage |
Author(s): | Lamberg, Piia |
Date: | 2003-12-05 |
Language: | en |
Pages: | 58, [93] |
Department: | Department of Mechanical Engineering Konetekniikan osasto |
ISBN: | 951-22-6608-3 |
Series: | Report / Helsinki University of Technology, Laboratory of Heating, Ventilating and Air Conditioning. A, 8 |
ISSN: | 1238-8971 |
Subject: | Mechanical engineering |
Keywords: | phase change material, PCM, heat transfer in PCM storage |
OEVS yes | |
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Abstract:In latent heat storage, internal heat transfer enhancement techniques such as fins have to be used because of the low heat conductivity of the phase change material (PCM). During the phase change in a PCM storage system the solid-liquid interface moves away from the heat transfer surface and the surface heat flux decreases due to the increasing thermal resistance of the molten or solidified medium. Internal heat transfer enhancement is essential, especially in a solidification process where the main heat transfer mode is conduction.
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Parts:Lamberg P., Lehtiniemi R. and Henell A.-M., Numerical and experimental investigation of melting and freezing processes in phase change material storage. International Journal of Thermal Sciences, in press. [article1.pdf] © 2003 by authors and © 2003 Elsevier Science. By permission.Lehtiniemi R., Lamberg P. and Henell A.-M., 2002. Validating a numerical phase change model by using infrared thermography. Proceedings of the 6th International Conference on Quantitative Infrared Thermography (QIRT 2002). Dubrovnik, Croatia, 24-27 September 2002.Lamberg P. and Sirén K., 2003. Analytical model for melting in a semi-infinite PCM storage with an internal fin. Heat and Mass Transfer 39, No. 2, pages 167-176. [article3.pdf] © 2003 Springer-Verlag. By permission.Lamberg P. and Sirén K., 2003. Approximate analytical model for solidification in a finite PCM storage with internal fins. Applied Mathematical Modelling 27, No. 7, pages 491-513. [article4.pdf] © 2003 Elsevier Science. By permission.Lamberg P., 2004. Approximate analytical model for two-phase solidification problem in a finned phase-change material storage. Applied Energy 77, No. 2, pages 131-152. [article5.pdf] © 2004 Elsevier Science. By permission. |
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