Experimental viscosity measurements of biodiesels at high pressure

Carl Schaschke

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
13 Downloads (Pure)


The viscosity of biodiesels of soybean and rapeseed biodiesels blended with mineral diesel fuel were measured at pressures of up to 200 MPa. Using a falling sinker-type viscometer reproducible viscosity data were obtained based on the time taken for a sinker to descend a fixed distance down an enclosed tube under the influence of gravity. Measurements were taken using pressures which correspond to those of interest in automotive common rail diesel engines, and at temperatures of between 25oC and 80oC. In all cases, the viscosity of the biodiesel blends were found to increase exponentially for which the blends were noted as being more viscous than pure mineral fuels. A pressure-freezing effect was not observed for the blends.
Original languageEnglish
Pages (from-to)453-460
Number of pages8
JournalChemical Industry and Chemical Engineering Quarterly
Issue number4
Publication statusPublished - 31 Oct 2016
Externally publishedYes


  • Falling sinker viscometer
  • High-pressure
  • Biodiesel
  • Viscosity
  • Rapeseed
  • Soybean


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