Speed of sound measurements of di-isopropyl ether (DIPE) from 293.15 K to 673.15 K and up to 10 MPa. (January 2017)

• Record Type: Journal Article
• Authors: Zhang, Ying; Zheng, Xiong; He, Maogang; Liang, Lili; Chen, Yutian
• Is Part Of: Journal of chemical thermodynamics. Volume 104(2017)
• Page Start: 1
• Page End: 8
• Publication Date: 2017-01
• Subjects: Speed of sound -- Di-isopropyl ether -- Brillouin light scattering; Thermodynamics -- Periodicals; Thermochemistry -- Periodicals; Thermodynamique -- Périodiques; Thermochimie -- Périodiques; Thermochemistry; Thermodynamics; Periodicals; 541.369
• DOI: 10.1016/j.jct.2016.09.005
• Languages: English
• ISSNs: 0021-9614

Abstract

Graphical abstract: Highlights: New data for the speed of sound in di-isopropyl ether at 303.15 to 673.15 K and up to 10 MPa were proposed. The relative expanded uncertainty of speed of sound is 1.38% for liquid and supercritical fluid and 1.62% for gas. Correlations for the saturated liquid and vapour data as well as for the liquid data are presented. Abstract: Oxygenates are usually used as fuel additives. Recently, di-isopropyl ether (DIPE) has been considered as the potential fuel additive for the replacement of methyl tert-butyl ether (MTBE). So it is essential to research its thermophysical properties. In this paper, the speed of sound in DIPE was measured from 303.15 K to 673.15 K up to 10 MPa using Brillouin light scattering (BLS), including saturated liquid/vapour, and the liquid and supercritical regions. The saturated liquid/vapour and single phase liquid results were fitted as functions of temperature and pressure. The correlations represent the data with AADs of 0.62% for the saturated liquid, 0.44% for the saturated vapour and 0.73% for the liquid, respectively. Moreover, the variation of speed of sound with temperature and pressure was also analysed.