A milk collection problem with blending is introduced. A firm collects milk from farms, and each farm produces one out of three possible qualities of milk. The revenue increases with quality, and there is a minimum requirement at the plant for each quality. Different qualities of milk can be blended in the trucks, reducing revenues, but also transportation costs, resulting in higher profit. A mixed integer-programming model, a new cut, and a branch-and-cut algorithm are proposed to solve medium-sized instances. A three-stage heuristic is designed for large instances. Computational experience for test instances and a large-sized real case is presented.
|Número de páginas||18|
|Publicación||Transportation Research Part E: Logistics and Transportation Review|
|Estado||Publicada - 1 oct 2016|
Áreas temáticas de ASJC Scopus
- Gestión internacional y de empresa
- Ingeniería civil y de estructuras