Economic lot scheduling problem has been an important topic in production planning and scheduling research for more than four decades. The problem is known to be NP-hard due to its combinatorial nature. In this paper, a meta-heuristics algorithm based on Simulated Annealing (SA) is proposed. Besides on explaining how to use SA, the effects of changing in production frequency on sequence and als...

In this paper, we propose the inclusion of a set of valid inequalities derived using a lifting procedure into a lot scheduling model applied to the soft-drink production. The set of valid inequalities is derived from constraints associated with the scheduling decisions. A computational study conducted to evaluate the quality of the proposed reformulation and how the lifted inequalities relate t...