考虑碳减排风险的闭环供应链网络设计

Closed-Loop Supply Chain Network Design Considering the Risk of Carbon Emissions Reduction

针对产品需求量和废旧品回收率的不确定性,采用情景分析方法,以总成本最小化为目标建立了闭环供应链网络设计模型。在此基础上,考虑到日益凸显的环境问题,将碳排放作为闭环供应链网络设计的重要影响因素,建立了两阶段随机规划模型,并引入碳减排风险约束,将多目标问题转化为单目标问题进行求解,以确定闭环供应链网络的布局结构和节点之间的流量安排。最后,通过算例分析,证明了模型的有效性,得到了不同风险态度决策者的最优方案,取得了碳减排风险和总成本的折中,为闭环供应链网络设计者提供决策支持。

The closed-loop supply chain （CLSC） network design model was built with the goal of minimizing the total cost based on scenario analysis method under uncertain product demand and recovery rate. On this basis, with the consideration of increasingly serious environmental problems, carbon emission was treated as an important factor that affects CLSC network design. A two-stage stochastic programming model was constructed. The multi-objective problem was solved by introducing the constraint of carbon emissions reduction risk to determine the layout structure of CLSC and the flow between nodes. Finally, through the numerical example, the model was proved to be valid. The optimal plans of decision-makers with different attitudes towards risks were obtained, and the balance between the risk of carbon emissions reduction and the total cost was achieved. The stated contents can provide important insights for CLSC network design-makers when considering the risk of carbon emissions reduction.