• Home
  • Bergman Article 2014

N. Sharifi, T.L. Bergman, M.J. Allen, A. Faghri, “Melting and solidification enhancement using a combined heat pipe, foil approach,” International Journal of Heat and Mass Transfer, vol. 78, pp. 930 – 941, 2014.


Melting and solidification of a phase change material (PCM) is investigated, experimentally and computationally, using a novel heat pipe–metal foil approach. By embedding a PCM within a metal foil matrix, and delivering (or extracting) thermal energy to (or from) the matrix with a vertically-oriented heat pipe, overall thermal resistances between a working fluid and the PCM solid–liquid interface can be reduced. This leads to increased phase change rates relative to configurations involving only the heat pipe, or only a solid rod of the same physical dimensions as the heat pipe. For a small (approximately 1%) volume fraction of foil in the PCM–foil matrix, measured and predicted melting (solidification) rates associated with heat pipe–foil configurations are increased by approximately 300% (900%) relative to configurations involving the rod with no foil. Melting and solidification rates relative to configurations involving the heat pipe with no foil, are increased by approximately 200% and 600%.


KU Today
High school seniors can apply to the SELF Program, a four-year enrichment and leadership experience
Engineering students build concrete canoes, Formula race cars, unmanned planes, and rockets for competitions nationwide
More first and second place awards in student AIAA aircraft design contests than any other school in the world
One of 34 U.S. public institutions in the prestigious Association of American Universities
44 nationally ranked graduate programs.
—U.S. News & World Report
Top 50 nationwide for size of library collection.
5th nationwide for service to veterans —"Best for Vets: Colleges," Military Times