The residential sector plays an important role in the action to combat climate change and its impacts. Recentstudies show that the integration of thermal and electrical systems allows to increase the share of renewableenergy, and the reduction of CO_2 emissions. Polygeneration systems lead to a reduction of economic costs andCO_2 emissions with respect to the separate production of energy services, thanks to an adequate systemsintegration. Achieving such benefits requires an appropiate design procedure bearing in mind that theminimization of the economic costs is often opposite to the minimization of the environmental impact. The aimof this paper is to carry out the synthesis of a polygeneration system for a residential building located in Zaragoza(Spain) encompassing renewable energy, thermal energy storage and batteries, considering economic andenvironmental aspects. A mixed integer linear programming (MILP) model has been developed to obtain tradeoffsolutions through the multiobjective optimization in two cases: grid connected and standalone systems. In bothcases, five configurations of commercially available equipment were obtained, finding interesting solutions wheresignificant CO_2 emissions reduction were achieved with a small increasing in the economic cost.
展开▼
