Utilization of waste glass powder for latent heat storage application in buildings

Shazim Ali Memon, Tommy Yiu Lo, Hongzhi Cui

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


The feasibility of using soda-lime waste glass powder for latent heat storage application was investigated. n-Octadecane was loaded into glass powder (GP). The surface morphology, chemical compatibility, phase change behavior, thermal stability and reliability were determined using Scanning electron microscope (SEM), Fourier transformation infrared spectrum analysis (FT-IR), Differential scanning calorimetry (DSC), Thermo gravimetric analyzer (TGA) and thermal cycling test. The thermal performance of cement paste composite PCM was also evaluated. The maximum mass percentage of n-octadecane retained by GP was found to be 8. FT-IR results showed that the interaction between the components of composite PCM is physical in nature. The melting and freezing temperatures of the composite PCM were found to be 26.93 C and 25.03 C while the latent heat of melting and freezing were 18.97 J/g and 18.95 J/g. TGA and thermal cycling results confirmed that the composite PCM is thermally stable and reliable. Thermal performance test showed that the cement paste panel with composite PCM reduced the indoor temperature by 3 C. It can be concluded that the composite PCM can be used for thermal energy storage applications in buildings. Its usage will provide sustainable solution to reuse the waste glass. Thus, landfills can be saved for useful applications.

Original languageEnglish
Pages (from-to)405-414
Number of pages10
JournalEnergy and Buildings
Publication statusPublished - 2013
Externally publishedYes


  • Form-stable composite
  • Latent heat storage
  • PCM
  • Phase change material
  • Waste glass powder
  • n-Octadecane

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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