Spreadsheet Optimization of Flow for WIP Goods at a Yarn and Tire Cord Manufacturer: A Case Study

Nylon 6.6 produced at Kordsa; Source: http://www.kordsa.com.tr
Nylon 6.6 produced at Kordsa; Source: http://www.kordsa.com.tr

We developed a spreadsheet optimization model to find the optimal material handling policy at a leading yarn and tire cord manufacturer’s facility. The focus of the study is to optimize the movement of looms of yarn and tire cord between two major manufacturing steps. The considered flow network within the manufacturing facility is a miniature two-stage supply chain, including the middle layer of depots. Movement of material takes place through forklift trucks and cranes, which impose electricity, labor, maintenance, and depreciation costs. After introducing the company, the facility, and the project goals, we present the underlying linear programming (LP) model and our spreadsheet implementation. The results of our model suggest an annual saving of approximately $22,000 for the facility.

Mataraci, B. and Ertek, G. (2006). “Spreadsheet optimization of flow for WIP goods at a yarn and tire cord manfacturer: A case study.” 5th International Symposium on Intelligent Manufacturing Systems, Sakarya, Turkey.

Note: This is the final draft version of this paper. Please cite this paper (or this final draft) as above.

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Spreadsheet Optimization of Flow for WIP Goods at a Yarn and Tire Cord Manufacturer: A Case Study

Dr. Gürdal Ertek recommends the following related books:


Spreadsheet Modeling and Applications: Essentials of Practical Management Science (with CD-ROM and InfoTrac) 1st Edition


Network Flows: Theory, Algorithms, and Applications 1st Edition