Preparation of shape stabilized PCMs by vacuum impregnating method of diatomite

Su Gwang Jeong, Jeong Hun Lee, Sumin Kim

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


This paper deals with the thermal performances of PCM/diatomite composites for energy saving. The PCM/diatomite composites were prepared by incorporating PCMs in the pores of diatomite to increase form stability of PCMs. In experiment, we used hexadecane and octadecane as PCM. The PCMs could be retained at 50wt% in the pores of the diatomite without leakage. Thermal efficiency was also analyzed through vacuum treatment during the preparation process. An optimal preparing method for 50wt% of PCM impregnation is proposed. Thermal properties of PCM/diatomite composites were determined using DSC, and were characterized by SEM and FTIR analysis. SEM results showed that the PCMs are well- infiltrated into the structure of diatomite. DSC analysis results showed that the latent heat capacities of PCM/diatomite composites were 50% the value of pure PCMs.

Original languageEnglish
Title of host publicationManufacturing Technology
Number of pages4
Publication statusPublished - 2013
Event2012 International Conference on Manufacturing, Manufacturing 2012 - Macau, China
Duration: 2012 Nov 142012 Nov 15

Publication series

NameAdvanced Materials Research
ISSN (Print)1022-6680


Other2012 International Conference on Manufacturing, Manufacturing 2012

All Science Journal Classification (ASJC) codes

  • General Engineering


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