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Heat and Mass Transfer

, Volume 39, Issue 2, pp 167–176 | Cite as

Analytical model for melting in a semi-infinite PCM storage with an internal fin

  •  P. Lamberg
  •  K. Sirén
Original

Abstract.

The most PCMs with high energy storage density have an unacceptably low heat conductivity and hence internal heat transfer enhancement techniques such as fins or other metal structures are required in latent heat thermal storage (LHTS) applications. Previous work has concentrated on numerical and experimental examination in determining the influence of the fins in melting phase change material. This paper presents a simplified analytical model based on a quasi-linear, transient, thin-fin equation which predicts the solid–liquid interface location and temperature distribution of the fin in the melting process with a constant imposed end-wall temperature. The analytical results are compared to the numerical results and they show good agreement. Due to the assumptions made in the model, the speed of the solid–liquid interface during the melting process is slightly too slow.

Keywords

Liquid Interface Melting Process Phase Change Material Transfer Enhancement Heat Transfer Enhancement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  •  P. Lamberg
    • 1
  •  K. Sirén
    • 1
  1. 1.Helsinki University of Technology, HVAC laboratory P.O.Box 4400, 02015 HUT, Finland

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