High pressure thermophysical characterization of fuel used for testing and calibrating diesel injection systems

This paper reports experimental thermophysical measurements of a fuel (Shell Normafluid) used for testing and calibrating diesel injection systems and which meets the ISO 4113 specifications. Viscosity was measured from 0.1 to 200 MPa and from 293 to 353 K, using a falling-body viscometer. Speed of sound measurements were carried out from atmospheric up to 200 MPa in the temperature range from 283 to 423 K using a pulse technique operating at 3 MHz. Densities were determined from 283 to 423 K and up to 200 MPa. From these measurements, the volumetric derivatives properties such as isentropic and isothermal compressibilities were evaluated.