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Thermal properties of 3‐hydroxy fatty acids and their binary mixtures as phase change energy storage materials
Author(s) -
Jaksic Jovana,
Ostojic Sanja,
Micic Darko,
Tokic Vujosevic Zorana,
Milovanovic Jelena,
Karkalic Radovan,
O'Connor Kevin E.,
Kenny Shane T.,
Casey William,
NikodinovicRunic Jasmina,
Maslak Veselin
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4934
Subject(s) - differential scanning calorimetry , polyhydroxyalkanoates , eutectic system , decanoic acid , materials science , thermal energy storage , atmospheric temperature range , thermodynamics , thermal , chemical engineering , chemistry , organic chemistry , composite material , microstructure , physics , engineering , genetics , bacteria , biology
Summary In the present work, we describe the chemical synthesis of 3‐HFAs as prominent derivatives of fatty acids and assess if they could be applied as phase change materials (PCM). In addition, 3‐HFAs were obtained by depolymerization of a bacterial biopolymeric material, polyhydroxyalkanoate. Thermal properties of 3‐hydoxyoctanoic, decanoic, and dodecanoic acids are reported for the first time. These materials showed the potential to be applied as PCM in temperature range from 33°C to 66°C. In order to expand the temperature range for application of 3‐HFAs as PCM, eutectic mass ratios of three kinds of binary mixtures of 3‐HFAs were calculated, and their properties were predicted using the Schröder‐van Laar equation. Thermal properties of these mixtures were validated by differential scanning calorimetry (DSC) analysis. These results showed that eutectics considerably expanded the scope of applications of 3‐HFAs as PCMs. 3‐HFAs originating from biotechnologically obtained polyhydroxyalkanoates also showed potential to be applied in development of PCMs.