Optimal design of air-conditioning systems using deep seawater

This paper presents a multi-objective mixed integer linear programming problem for the optimization of seawater air-conditioning systems using deep seawater as a cooling utility. The optimization formulation was developed including the technical, economic and environmental aspects of the problem. The model is used to define the optimal scheduling of deep seawater use and electricity needed to satisfy the air-conditioning requirements in a group of hotels. It also addresses the optimal planning for biocide, neutralization chemical dosing and mechanical maintenance required to maintain optimal operation conditions in the system. The proposed model is applied to a case study in Mexico. Results show the trade-offs between economic and environmental aspects. Optimal solutions compensating economic and environmental objectives are identified through a Pareto front.

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