A Comparative Study of Unbalanced Production Lines Using Simulation Modeling: A Case Study for Solar Silicon Manufacturing

In the solar silicon manufacturing industry, the production time for crystal growth is ten times longer than at other workstations. The pre-processing time at the ingot-cutting station causes work-in-process (WIP) accumulation and an excessively long cycle time. This study aimed to find the most eff...

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Veröffentlicht in:Sustainability 2022-01, Vol.14 (2), p.697
Hauptverfasser: Cheng, Chen-Yang, Li, Shu-Fen, Lee, Chia-Leng, Jientrakul, Ranon, Yuangyai, Chumpol
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container_issue 2
container_start_page 697
container_title Sustainability
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creator Cheng, Chen-Yang
Li, Shu-Fen
Lee, Chia-Leng
Jientrakul, Ranon
Yuangyai, Chumpol
description In the solar silicon manufacturing industry, the production time for crystal growth is ten times longer than at other workstations. The pre-processing time at the ingot-cutting station causes work-in-process (WIP) accumulation and an excessively long cycle time. This study aimed to find the most effective production system for reducing WIP accumulation and shortening the cycle time. The proposed approach considered pull production systems, and the response surface methodology was adopted for performance optimization. A simulation-based optimization technique was used for determining the optimal pull production system. The comparison between the results of various simulated pull production systems and those of the existing solar silicon manufacturing system showed that a hybrid production system in which a kanban station was installed before the bottleneck station with a CONWIP system incorporated for the rest of the production line could reduce the WIP volume by 26% and shorten the cycle time by 16% under the same throughput conditions.
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source MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals
subjects Accumulation
Assembly lines
Case studies
Comparative studies
Crystal growth
Cycle time
Genetic algorithms
Inventory
Manufacturers
Manufacturing
Manufacturing industry
Optimization
Production capacity
Production controls
Production lines
Raw materials
Response surface methodology
Silicon
Silicon wafers
Simulation
Sustainability
Work in process
Work stations
Workflow
title A Comparative Study of Unbalanced Production Lines Using Simulation Modeling: A Case Study for Solar Silicon Manufacturing
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