Designing a bi-objective agro-supply chain model considering freshness-keeping efforts and CO۲ emissions

In this paper, a bi-objective agro-supply chain model is presented to optimize the economic and environmental impacts of freshness-keeping efforts for agricultural products. In this regard, products with different quality levels are purchased from producers to be kept in a multi-temperature system and used for nearly one year. In addition, this paper deals with storage location decisions, transportation, and inventory planning. In order to solve the problem, an augmented ɛ-constraint method is proposed converting a bi-objective model to a single objective. The augmented ɛ-constraint method will provide an efficient Pareto frontier contemplating a proper balance between total cost minimization and CO۲ emission reduction.

Keywords:

Agro-supply chain , Augmented ɛ-constraint method , Multi-temperature storage system