Optimization model for sustainable food supply chains: An application to Norwegian salmon
Optimization model for sustainable food supply chains: An application to Norwegian salmon
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DOI：
10.1016/j.tre.2022.102723
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发表时间：
2022-04-30
影响因子：
10.6
通讯作者：
Aditjandra, Paulus
中科院分区：
文献类型：
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作者：
De, Arijit;Gorton, Matthew;Aditjandra, Paulus
食品供应链包括多个行为体，同时生产多种产品，这些产品需要使用各种模式或网络运输，然后才能到达消费者的餐桌。然而，运输成本和相关的碳排放沿着供应链可能很高，促使人们寻求有效的管理解决方案。本文提出了一个数学公式的形式，一个混合整数线性规划模型，从挪威鲑鱼供应链网络的证据。该模型通过旨在最大限度地减少各种运输方式的燃料成本成分来解决环境问题，并考虑了与碳排放相关的限制。使用各种问题实例的测试突出了所提出的数学公式和模型的鲁棒性。此外，挪威鲑鱼出口商的真实案例研究有助于了解所提出的模型的适用性。本文讨论了不同的供应链安排对整体成本的影响，包括燃料成本和碳排放，以了解食品供应链整体优化的必要性。关于需求变化的敏感性分析允许建议的数学模型，以重组挪威鲑鱼供应链网络，以满足波动的零售需求。运输情景分析强调，某些路线必须从公路运输转向海上运输，以实现财政和环境收益。
Food supply chains encompass multiple actors and simultaneously produce multiple products that require transportation using various modes or networks before arriving on consumers' tables. Transportation costs and related carbon emissions along a supply chain, however, can be high, prompting a search for efficient management solutions. This paper proposes a mathematical formulation in the form of a mixed-integer linear programming model, drawing on evidence from a Norwegian salmon supply chain network. The model addresses environmental aspects by aiming to minimize the fuel cost component from various transportation modes and considers carbon emissions related restrictions. Testing using various problem instances highlights the robustness of the proposed mathematical formulation and models. Moreover, a real-world case study of a Norwegian salmon exporter helps understand the applicability of the proposed model. The paper discusses the impact of different supply chain arrangements regarding their overall cost, including fuel cost, and carbon emissions to understand the need for holistic optimization of food supply chains. Sensitivity analysis regarding demand variability allows the proposed mathematical model to restructure the Norwegian salmon supply chain network to meet fluctuating retail demand. Transportation scenario analysis emphasizes the importance of shifting from road to maritime transportation for certain routes to achieve financial and environmental gains.