Experimental viscosity measurements of biodiesels at high pressure

C. J. Schaschke*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The viscosities 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 corresponding to those of interest in automotive common rail diesel engines, and at temperatures between 25 and 80 °C. 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 - 2016


  • falling sinker viscometer
  • high-pressure
  • biodiesel
  • viscosity
  • rapeseed
  • soybean

ASJC Scopus subject areas

  • Chemical Engineering(all)


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