Melting behavior and heat transfer characteristics of water-insoluble material immersed in water

Ryota Hirai, Tsuyoshi Kawanami, Go Sota, Koji Fumoto, Katsuaki Shirai, Shigeki Hirasawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents the melting behavior and heat transfer characteristics of a water-insoluble material immersed in water. N-hexadecane, popularly used as a phase change material, is adopted as a waterinsoluble material. A rectangular n-hexadecane solid is placed vertically in the water. The melting behavior of n-hexadecane and its melting rate are then observed under a variety of water temperature conditions in the test vessel. An evaluation of the melting behavior and the local heat transfer coefficient indicates that the ambient water flow along the vertical n-hexadecane block enhances heat transfer at the upper side of the block as the ambient water temperature becomes lower. The upward flow of the melting liquid prevents the melting heat transfer at the upper part of the block as the ambient water temperature becomes higher. The variation of the shape of the top part of the block then changed and the heat transfer coefficient barely decreased when Polyoxyethylene Sorbitan Monooleate (Tween 80) was added in the water.

Original languageEnglish
Title of host publication24th IIR International Congress of Refrigeration, ICR 2015
PublisherInternational Institute of Refrigeration
Pages2177-2183
Number of pages7
ISBN (Electronic)9782362150128
DOIs
Publication statusPublished - 2015 Jan 1
Externally publishedYes
Event24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
Duration: 2015 Aug 162015 Aug 22

Other

Other24th IIR International Congress of Refrigeration, ICR 2015
CountryJapan
CityYokohama
Period15/8/1615/8/22

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

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  • Cite this

    Hirai, R., Kawanami, T., Sota, G., Fumoto, K., Shirai, K., & Hirasawa, S. (2015). Melting behavior and heat transfer characteristics of water-insoluble material immersed in water. In 24th IIR International Congress of Refrigeration, ICR 2015 (pp. 2177-2183). International Institute of Refrigeration. https://doi.org/10.18462/iir.icr.2015.0258