Reducing energy consumption in serial production lines with Bernoulli reliability machines

Wen Su, Xiaolei Xie, Jingshan Li, Li Zheng and Shaw C. Feng

International Journal of Production Research, 2017, vol. 55, issue 24, 7356-7379

Abstract: This paper is devoted to developing an integrated model to minimise energy consumption while maintaining desired productivity in Bernoulli serial lines with unreliable machines and finite buffers. For small systems, such as three- and four-machine lines with small buffers, exact analysis to optimally allocate production capacity is introduced. For medium size systems (e.g. three- and four-machine lines with larger buffers, or five-machine lines with small buffers), an aggregation procedure to evaluate line production rate is introduced. Using it, optimal allocation of machine efficiency is searched to minimise energy consumption. Insights and allocation principles are obtained through the analyses. Finally, for larger systems, a fast and accurate heuristic algorithm is presented and validated through extensive numerical experiments to obtain optimal allocation of production capacity to minimise energy consumption while maintaining desired productivity.

Date: 2017
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DOI: 10.1080/00207543.2017.1349948

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