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Processes 2013, 1(2), 30-48; doi:10.3390/pr1020030
Article

Density and Viscosity Measurement of Diesel Fuels at Combined High Pressure and Elevated Temperature

1,* , 1
 and 2
Received: 20 May 2013; in revised form: 24 June 2013 / Accepted: 2 July 2013 / Published: 19 July 2013
(This article belongs to the Special Issue Feature Papers)
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Abstract: We report the measurement of the viscosity and density of various diesel fuels, obtained from British refineries, at elevated pressures up to 500 MPa and temperatures in the range 298 K to 373 K. The measurement and prediction procedures of fluid properties under high pressure conditions is of increasing interest in many processes and systems including enhanced oil recovery, automotive engine fuel injection, braking, and hydraulic systems. Accurate data and understanding of the fluid characteristic in terms of pressure, volume and temperature is required particularly where the fluid is composed of a complex mixture or blend of aliphatic or aromatic hydrocarbons. In this study, high pressure viscosity data was obtained using a thermostatically-controlled falling sinker-type high pressure viscometer to provide reproducible and reliable viscosity data based on terminal velocity sinker fall times. This was supported with density measurements using a micro-pVT device. Both high-pressure devices were additionally capable of illustrating the freezing points of the hydrocarbon mixtures. This work has, thus, provided data that can extend the application of mixtures of commercially available fuels and to test the validity of available predictive density and viscosity models. This included a Tait-style equation for fluid compressibility prediction. For complex diesel fuel compositions, which have many unidentified components, the approach illustrates the need to apply appropriate correlations, which require accurate knowledge or prediction of thermodynamic properties.
Keywords: high pressure; diesel fuel; falling sinker viscometer; viscosity measurement high pressure; diesel fuel; falling sinker viscometer; viscosity measurement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Schaschke, C.; Fletcher, I.; Glen, N. Density and Viscosity Measurement of Diesel Fuels at Combined High Pressure and Elevated Temperature. Processes 2013, 1, 30-48.

AMA Style

Schaschke C, Fletcher I, Glen N. Density and Viscosity Measurement of Diesel Fuels at Combined High Pressure and Elevated Temperature. Processes. 2013; 1(2):30-48.

Chicago/Turabian Style

Schaschke, Carl; Fletcher, Isobel; Glen, Norman. 2013. "Density and Viscosity Measurement of Diesel Fuels at Combined High Pressure and Elevated Temperature." Processes 1, no. 2: 30-48.

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