THERMAL SCIENCE

International Scientific Journal

DETERMINING THE SPEED OF SOUND, DENSITY AND BULK MODULUS OF RAPESEED OIL, BIODIESEL AND DIESEL FUEL

ABSTRACT
Modern tendencies in the development of diesel engines include the operation of the system for injecting diesel fuel at pressures higher than 100 MPa. Knowing the characteristics of liquid fuels such as speed of sound, bulk modulus and density depending on pressure, is important for predicting the behavior of fuel injection systems for diesel engines and optimization of the same. The paper presents an original method and apparatus (device) for determining the speed of sound and density of fluids depending on the pressures. With this method, values of these characteristics for rapeseed oil, biodiesel and conventional diesel fuel at pressures up to 160 MPa are determined. The method is non-destructive, it can also be applied to higher pressures than 160 MPa, as well as other liquid fluids that are used at high pressure - hydraulic oil, for example.
KEYWORDS
PAPER SUBMITTED: 2012-04-26
PAPER REVISED: 2012-07-06
PAPER ACCEPTED: 2012-07-19
DOI REFERENCE: https://doi.org/10.2298/TSCI120426187N
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Supplement 2, PAGES [S505 - S514]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence