Experimental investigation of effects of supercooling on microencapsulated phase-change material (MPCM) slurry thermal storage capacities

Shuo Zhang, Jianlei Niu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

56 Citations (Scopus)

Abstract

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 a daily basis at the temperate range between 10 and 20 °C are the most desirable. This paper will present the experimental investigation of microencapsulated paraffin slurry as cooling storage media for building cooling applications. The water slurry of microencapsulated n-hexadecane with a melting temperature of 18 °C was cooled to 5 °C and heated to 25 °C cyclically in a storage tank of 230 l, and it was observed that full latent heat storage can only be realized at around 7 °C due to supercooling, and the effective cooling storage capacity at the cooling temperature range between 5 and 18 °C are obtained, which can be used to realistically estimate cooling storage capacity with various natural cooling schemes.
Original languageEnglish
Pages (from-to)1038-1048
Number of pages11
JournalSolar Energy Materials and Solar Cells
Volume94
Issue number6
DOIs
Publication statusPublished - 1 Jun 2010

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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