Erythritol Tetra Myristate and Erythritol Tetra Laurate as Novel Phase Change Materials for Low Temperature Thermal Energy Storage     
Yazarlar (4)
A. Sari
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
A. Karaipekli
Çankiri Karatekin Üniversitesi, Türkiye
R. Eroǧlu
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Doç. Dr. Alper BİÇER Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Energy Sources Part A Recovery Utilization and Environmental Effects
Dergi ISSN 1556-7036 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 07-2013
Cilt No 35
Sayı 14
Sayfalar 1285 / 1295
DOI Numarası 10.1080/15567036.2010.516323
Makale Linki http://www.tandfonline.com/doi/abs/10.1080/15567036.2010.516323
Özet
In this study, erythritol tetra myristate and erythritol tetra laurate, as novel phase change materials (PCM) for latent heat thermal energy storage, were synthesized by the direct esterification reaction of the erythritol with myristic and lauric acids. The esterification reactions were proven by using Fourier transform infrared and nuclear magnetic resonance (1H NMR) spectroscopy techniques. The melting and freezing temperatures and latent heats of the esters were measured using differential scanning calorimetry analysis. The melting temperatures and latent heats of the erythritol tetra myristate and erythritol tetra laurate esters were determined as 10.82 and -9.03°C and 180.90 and 161.39 J/g, respectively. The thermal cycling test indicated that the synthesized esters had good thermal reliability in terms of the changes in thermal properties after 1,000 thermal cycling. Thermal stability of the PCM was also investigated by using thermal gravimetric analysis. Moreover, the thermal conductivities of the synthesized esters were increased by about 28% for erythritol tetra myristate and 25% for erythritol tetra laurate by addition of 5 wt% expanded graphite. Based on all these results, it can be concluded that the synthesized esters as novel solid-liquid PCM have great potential for low temperature applications, such as transport of blood, operating tables, hot-cold therapies, and refrigerators. © 2013 Taylor and Francis Group, LLC.
Anahtar Kelimeler
lauric acid | myristic acid | phase change materials | thermal energy storage | thermal reliability