Open AccessExperimental study of the density of octafluorocyclobutane in the liquid and supercritical area of states
Author(s) -
P. P. Granchenko,
Konstantin Kuznetsov,
А. А. Сухих,
С. В. Скородумов
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1565/1/012042
Subject(s) - supercritical fluid , thermodynamics , volume (thermodynamics) , range (aeronautics) , work (physics) , materials science , absolute deviation , constant (computer programming) , standard deviation , polynomial , thermal , mathematics , physics , mathematical analysis , statistics , computer science , composite material , programming language
This work is a continuation of the cycle of studies of the pρT-surface of octafluorocyclobutane in the range of parameters of the state of operation of power plants. The new data of the following series of measurements of the density of octafluorocyclobutane, obtained by the method of a constant-volume cell, are presented. The measurements were carried out on 5 isotherms in the liquid and supercritical regions in the range of temperature from 25°C to 143°C and pressures from 1.6 to 10.9 MPa. The density uncertainty was estimated by the authors at no more than 0.2%. The resulting thermal surface is described by a polynomial with 20 coefficients. The mean square deviation of the experimental points from the calculated ones was 0.026%.