Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/10054/8873
Title: Aggregate planning in supply chains by pinch analysis
Authors: SINGHVI, A
SHENOY, UV
Keywords: Distillation
Networks
Targets
Energy
Issue Date: 2002
Publisher: INST CHEMICAL ENGINEERS
Citation: CHEMICAL ENGINEERING RESEARCH & DESIGN, 80(A6), 597-605
Abstract: This work presents a novel extension of the targeting methods front pinch analysis to aggregate planning in supply chains. Aggregate planning aims at meeting demand over a specified time horizon in a way that maximizes profit through optimal levels of production, capacity, subcontracting, inventory, and stockouts. It is demonstrated how minimum production rates for a given demand forecast may be targeted through composite curves on a time versus material quantity plot. The grand composite curve (GCC) representation may be conveniently used to depict how surpluses and shortages in inventory fluctuate over time. The pinch corresponds to the point of minimum lead time and zero inventory. An example problem is used to illustrate the approach. The initial aggregate plan from pinch analysis exactly matches the solution reported in literature obtained by solving a linear programming formulation. On the other hand, the final aggregate plans from the pinch targeting method are superior to the solution in literature, as they are more realistic. It may be concluded that the production composite determined by the pinch targeting method provides either the best aggregate plan or an excellent starting point to reduce computational time for a solution by mixed integer linear programming.
URI: http://dx.doi.org/10.1205/026387602760312791
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8873
http://hdl.handle.net/10054/8873
ISSN: 0263-8762
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