The impact of supercooling on the effective cooling storage capacity of phase-change materials in natural cooling application

Jianlei Niu, Shuo Zhang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Ice storage is currently the dominant cooling energy storage method. To more effectively utilize natural, renewable cooling sources, such as evaporative cooling and sky-radiative cooling, diurnal storage media operated on daily basis at the temperate range between 10 and 20 °C are the most desirable. In this paper, we presented our experimental investigation of micro-encapsulated paraffin slurry as cooling storage media for building cooling applications. The water slurry of micro-encapsulated N-hexadecane with a melting temperature of 18 °C were cooled to 5 °C and heated to 25 °C cyclically in a storage tank of 230 litre, and it was observed that full latent heat storage can only be realized at 5 °C due to supercooling, and the effective cooling storage capacity at the cooling temperature between 5 and 18 °C are obtained, which can be used to for cooling storage system design with various passive cooling possibilities.
Original languageEnglish
Title of host publicationProceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
Number of pages10
Publication statusPublished - 1 Dec 2009
Event2009 ASME Summer Heat Transfer Conference, HT2009 - San Francisco, CA, United States
Duration: 19 Jul 200923 Jul 2009


Conference2009 ASME Summer Heat Transfer Conference, HT2009
Country/TerritoryUnited States
CitySan Francisco, CA


  • Effective latent heat
  • Experimental investigation
  • MPCM slurry
  • Supercooling
  • Thermal storage capacity

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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