Measurements of phase equilibrium temperature and dissociation heat of tetrabutylphosphonium glutarate ionic semiclathrate hydrate

Taro Iwai, Iku Ohta, Kai Hiraga, Keita Kashima, Atsushi Hotta, Ryo Ohmura

Research output: Contribution to journalArticlepeer-review

Abstract

Thermophysical properties such as phase equilibrium temperature and dissociation heat are important to determine the performance of phase change materials targeting thermal energy storage. The phase equilibrium temperature and dissociation heat of tetrabutylphosphoniumglutarate ionic semiclathrate hydrate were measured in this study. The highest phase equilibrium temperature of tetrabutylphosphoniumglutarate hydrate was experimentally determined 287.4 K at the mass fraction 0.347 and 0.357. The largest dissociation heat was 193.3 ± 1.6 kJ/kg at the mass fraction 0.357. The measurement results in this work show that the dissociation heat can be utilized in the suitable temperature range targeting general air conditioning and data center.

Original languageEnglish
Article number113561
JournalFluid Phase Equilibria
Volume562
DOIs
Publication statusPublished - 2022 Nov

Keywords

  • Dissociation heat
  • Ionic semiclathrate hydrate
  • Phase equilibrium temperature
  • Tetrabutylphosphoniumglutarate
  • Thermal energy storage

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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