A Design Method of Building Energy Supply Systems using an Optimization Method

Abstract

Building energy supply systems should be designed by taking account of not only operational aspects but also factors such as equipment production, maintenance, and renewal. In additon, the best combination of equipment and energy sources should be selected in consideration of total energy demands. The present study proposes a design method of building energy supply systems using an optimization method. Design model and procedure for the method are proposed, and equipment characteristics data are presented. By applying the optimal design method to a hospital, the following results have been obtained: 1) A cost/CO_2-minimum energy supply system can be chosen from several combinations of equipment and energy; 2) Energy supply systems can be compared in terms of cost and CO_2 emition; and 3) Optimal equipment numbers and capacity can be determined by considering total energy demands and whole energy supply systems.