eprintid: 685
rev_number: 8
eprint_status: archive
userid: 14
dir: disk0/00/00/06/85
datestamp: 2015-07-08 11:19:07
lastmod: 2015-07-08 11:19:07
status_changed: 2015-07-08 11:19:07
type: report
metadata_visibility: show
creators_name: Cimpeanu, R.
creators_name: Devine, M.
creators_name: Donohue, J.
creators_name: Hocking, G.
creators_name: Holohan, N.
creators_name: McCarthy, S.
creators_name: van Wijk, S.
title: Optimisation of bulk carrier loading and discharge
ispublished: pub
subjects: machines
subjects: materials
studygroups: esgi93
companyname: Rusal Aughinish
full_text_status: public
abstract: This report summarises progress made towards the problem submitted by Rusal Aughinish at the 93rd European Study Group with Industry. Rusal Aughinish is a company that refines alumina from bauxite. The problem presented to the study group was to review the percentage of time that the company’s inner berth was occupied and how to minimise this percent- age. A number of different approaches were taken with this aim in mind. Firstly, data supplied by Rusal Aughinish was analysed. This analysis found that there is an optimal loading rate (with respect to eliminating demurrage costs) and suggested bands of optimal ship sizes. Further to these studies, two models of Rusal Aughinish’s shipping process were developed by the group: a simulation model and an analytical model. Both models were found to replicate the shipping process reasonably well and were, hence, used to study alumina output, berth occupancy and demurrage costs.
date: 2013
citation:   Cimpeanu, R. and Devine, M. and Donohue, J. and Hocking, G. and Holohan, N. and McCarthy, S. and van Wijk, S.  (2013) Optimisation of bulk carrier loading and discharge.  [Study Group Report]     
document_url: http://miis.maths.ox.ac.uk/miis/685/1/Aughinish_Report_ESGI93_final.pdf