eprintid: 462
rev_number: 10
eprint_status: archive
userid: 7
dir: disk0/00/00/04/62
datestamp: 2011-12-09 17:16:46
lastmod: 2015-05-29 20:04:50
status_changed: 2011-12-09 17:16:46
type: report
metadata_visibility: show
item_issues_count: 0
creators_name: Barton, N.
creators_name: Spencer, S.
creators_name: Zhu, Z.
title: Oil Blending: Mixing and Contamination
ispublished: pub
subjects: utilities
studygroups: misg10
companyname: Shell Australia
full_text_status: public
abstract: The Shell Company of Australia has a frequent need to blend lubricants. Blending, sometimes involving three lubricant oils and additives, takes place by jet mixing in large tanks of typically 45,000 titres capacity. The jets are driven by pumps with typical volume throughput of up to 1,000 titres per minute, and typical blending times may be as long as one or two hours.

The jet blending process was investigated in a number of ways at the Study Group. These included: simple estimates for blending times, theoretical and experimental description of jet behaviour, development of a simple compartment model for the blending process, and several large scale computer simulations of the jet-induced motion using a commercial Computational Fluid Dynamics package. In addition, the sedimentation of contaminant particles in the tanks was investigated. This overall investigation, using a variety of approaches, gave a good knowledge of the blending process.
date: 1993
citation:   Barton, N. and Spencer, S. and Zhu, Z.  (1993) Oil Blending: Mixing and Contamination.  [Study Group Report]     
document_url: http://miis.maths.ox.ac.uk/miis/462/1/Oil-blending-mixing-and-contamination.pdf