284089 A Modified Capillary Viscometer: Dynamic Viscosity Measurements for Heptane up to 30 Mpa and 353 K

Tuesday, October 30, 2012: 10:36 AM
412 (Convention Center )
Alfredo Pimentel-Rodas, Luis A. Galicia-Luna and Jose J. Castro-Arellano, INSTITUTO POLITECNICO NACIONAL-ESIQIE, Mexico, Mexico

Abstract

The knowledge of the viscosity values play an important place on the development, design and redesign of several processes. It is affordable to have data within a good accuracy including uncertainty analysis to use it on a future scaling industrial process. In this work, results of dynamic viscosities measurements for heptane are presented. The viscosity have been measured with a modified capillary viscometer designed and built to operate at pressures up to 40 MPa and temperatures up to 473.15 K. The viscosity was measured at pressures up to 30 MPa and temperatures up to 353 K. The total uncertainties of the dynamic viscosity measurements were estimated to be less than 1%. Experimental improvements are carrying out in order to have uncertainty in viscosity less than 0.5 %. Measured viscosities were compared with predictions and correlations previously reported in the literature, where the differences between the literature and the measurements reported here are less than 0.5%.


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See more of this Session: Thermodynamics and Transport Under Pressure
See more of this Group/Topical: Engineering Sciences and Fundamentals