In this paper, we formulate and solve a real life coal blending problem using a Column Generation Approach. The objective of the model is to prescribe optimal mixes of coal to produce coke. The problem is formulated as a mixed integer program. It involves various types of constraints arising from technical considerations of the blending process. The model also incorporates nonlinear constraints. It results in a large-scale problem that cannot be solved by classical operations research methods. Defining three heuristic methods based on column generation techniques, this paper proposes reasonable solutions for the industry.
Accepté le :
DOI : 10.1051/ro/2014033
Mots clés : Column generation, coal blending
@article{RO_2015__49_1_15_0,
author = {Auray, St\'ephane and de Wolf, Daniel and Smeers, Yves},
title = {Using {Column} {Generation} to {Solve} a {Coal} {Blending} {Problem}},
journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
pages = {15--37},
publisher = {EDP-Sciences},
volume = {49},
number = {1},
year = {2015},
doi = {10.1051/ro/2014033},
mrnumber = {3349114},
zbl = {1310.90038},
language = {en},
url = {http://www.numdam.org/articles/10.1051/ro/2014033/}
}
TY - JOUR AU - Auray, Stéphane AU - de Wolf, Daniel AU - Smeers, Yves TI - Using Column Generation to Solve a Coal Blending Problem JO - RAIRO - Operations Research - Recherche Opérationnelle PY - 2015 SP - 15 EP - 37 VL - 49 IS - 1 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/ro/2014033/ DO - 10.1051/ro/2014033 LA - en ID - RO_2015__49_1_15_0 ER -
%0 Journal Article %A Auray, Stéphane %A de Wolf, Daniel %A Smeers, Yves %T Using Column Generation to Solve a Coal Blending Problem %J RAIRO - Operations Research - Recherche Opérationnelle %D 2015 %P 15-37 %V 49 %N 1 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/ro/2014033/ %R 10.1051/ro/2014033 %G en %F RO_2015__49_1_15_0
Auray, Stéphane; de Wolf, Daniel; Smeers, Yves. Using Column Generation to Solve a Coal Blending Problem. RAIRO - Operations Research - Recherche Opérationnelle, Tome 49 (2015) no. 1, pp. 15-37. doi : 10.1051/ro/2014033. http://www.numdam.org/articles/10.1051/ro/2014033/
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