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Title: Ultrasonic speed of sound and derived thermodynamic properties of liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa

Abstract

The fluorinated propanes have recently been pointed out as promising alternatives to the chlorofluorocarbons used in the refrigeration industry. 1,1,1,2,3,3,3-heptafluoropropane, commercially designated as HFC227ea, is one of the candidates and there are very few property measurements reported in the literature. This work reports experimental data of the speed of sound in liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa, measured with a pulse-echo method. The results are fitted with a rational approximant. Derived thermodynamic properties are calculated, combining the experimental data with density and isobaric heat capacity values published by other authors. The results were compared with the data available in the literature.

Authors:
; ;
Publication Date:
Research Org.:
Univ. Nova de Lisboa, Caparica (PT)
OSTI Identifier:
20076019
Resource Type:
Journal Article
Journal Name:
Journal of Chemical and Engineering Data
Additional Journal Information:
Journal Volume: 45; Journal Issue: 3; Other Information: PBD: May-Jun 2000; Journal ID: ISSN 0021-9568
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; REFRIGERANTS; FLUORINATED ALIPHATIC HYDROCARBONS; THERMODYNAMIC PROPERTIES; REFRIGERATING MACHINERY; AIR CONDITIONERS; MATERIAL SUBSTITUTION; CHLOROFLUOROCARBONS

Citation Formats

Pires, P.F., Esperanca, J.M.S.S., and Guedes, H.J.R. Ultrasonic speed of sound and derived thermodynamic properties of liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa. United States: N. p., 2000. Web. doi:10.1021/je9902950.
Pires, P.F., Esperanca, J.M.S.S., & Guedes, H.J.R. Ultrasonic speed of sound and derived thermodynamic properties of liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa. United States. doi:10.1021/je9902950.
Pires, P.F., Esperanca, J.M.S.S., and Guedes, H.J.R. Thu . "Ultrasonic speed of sound and derived thermodynamic properties of liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa". United States. doi:10.1021/je9902950.
@article{osti_20076019,
title = {Ultrasonic speed of sound and derived thermodynamic properties of liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa},
author = {Pires, P.F. and Esperanca, J.M.S.S. and Guedes, H.J.R.},
abstractNote = {The fluorinated propanes have recently been pointed out as promising alternatives to the chlorofluorocarbons used in the refrigeration industry. 1,1,1,2,3,3,3-heptafluoropropane, commercially designated as HFC227ea, is one of the candidates and there are very few property measurements reported in the literature. This work reports experimental data of the speed of sound in liquid 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea) from 248 K to 333 K and pressures up to 65 MPa, measured with a pulse-echo method. The results are fitted with a rational approximant. Derived thermodynamic properties are calculated, combining the experimental data with density and isobaric heat capacity values published by other authors. The results were compared with the data available in the literature.},
doi = {10.1021/je9902950},
journal = {Journal of Chemical and Engineering Data},
issn = {0021-9568},
number = 3,
volume = 45,
place = {United States},
year = {2000},
month = {6}
}