Abstract
The latent heat thermal energy storage (LHTES) capacity of phase change materials (PCMs) increases with molecular weight and secondary interactions as their efficiency depends on the energy storage capacity per unit mass during its melting and freezing. In this study, ethylene glycole distearate (EGDS) as a novel PCM having high energy storage capacity (215.80 J/g) and suitable phase change temperature for LHTES was synthesized by esterification of stearic acid with ethylene glycol. The esterification reaction was proven by Fourier Transform Infrared (FT-IR) Spectroscopy. Thermal stability of the novel PCM was investigated by thermal cycling (1000 melting/freezing cycles). Latent heats of melting and freezing of EGDS were found 215.43 J/g-216.45 J/g by Differential Scanning Calorimetry (DSC) method, respectively after thermal cycling as melting and freezing temperatures were 65.35 and 65.83 °C, respectively. Thermal gravimetric analysis (TGA) was used to determine endurance of EGDS.
| Original language | English |
|---|---|
| Pages (from-to) | 1122-1125 |
| Number of pages | 4 |
| Journal | Materials Letters |
| Volume | 62 |
| Issue number | 6-7 |
| DOIs | |
| State | Published - 15 Mar 2008 |
| Externally published | Yes |
Bibliographical note
Funding Information:The author would like to acknowledge the financial support (Project No. 2003 K120510) by the Turkish State Planning Organization.
Keywords
- Esterification
- Ethylene glycole distearate
- Phase change material
- Stearic acid
- Thermal analysis
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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