RT info:eu-repo/semantics/article
T1 Contributing to accurate high pressure viscosity measurements: Vibrating wire viscometer and falling body viscometer techniques
A1 Zambrano Carranza, Johnny Robinson
A1 Sobrino García, Manuel
A1 Martín González, María del Carmen
A1 Villamañán Olfos, Miguel Ángel
K1 Termodinámica
K1 Viscosity
K1 Falling-body viscometer
K1 Vibrating-wire viscometer
K1 Toluene
K1 n-Heptane
K1 n-Dodecane
AB Two new techniques for measuring viscosities at high pressure have been implemented at theTERMOCAL laboratory in order to obtain accurate values of thermophysical properties such asviscosity, especially at high pressures.A vibrating-wire viscometer has been developed to accurately measure viscosities over theworking ranges T = (283.15 to 423.15) K and p = (0.1 to 140) MPa. The setup of the equipmentincludes calibration with toluene and its validation with n-dodecane.A falling body viscometer able to measure viscosities at T = (253.15 to 523.15) K and p = (0.1 to 140) MPa is also presented in this work. Results of calibration with toluene and its verification with n-heptane and n-dodecane are reported.The detailed uncertainty budgets for both techniques are included in this work. Moreover, thepaper studies the compatibility of the results obtained using both techniques according to theircorresponding uncertainties in order to obtain reliable data. New viscosity measurements of1,2,4-trimethylbenzene and 2,2,4-trimethylpentane have been performed and included in thepaper.
PB Elsevier
SN 0021-9614
YR 2016
FD 2016
LK http://uvadoc.uva.es/handle/10324/26147
UL http://uvadoc.uva.es/handle/10324/26147
LA eng
NO Journal of Chemical Thermodynamics, january 2016, vol. 96, p. 104–116
NO Producción Científica
DS UVaDOC
RD 01-may-2024