Simulation and energy economic analysis of an air-conditioning system with energy recovery ventilator in summer

Abstract

The energy recovery ventilator (ERV) is an important equipment for indoor air conditioning, where outdoor fresh air is pre-cooled when passing through the heat reclamation equipment in summer. The building energy-consuming simulation software eQUEST is used to analyze the load change of a building in Xiamen. For the commercial building of 6,912 m, the air-conditioning system with ERV has an electric power saving of 13,298 kWh in July and 12,927 kWh in August, and then about 8,205 Yuan can be saved in July and 7,976 Yuan can be saved in August. When ERV fan power consumption is considered, the electric power saving is 3,680 kWh in July and 3,312 kWh in August. Comprehensive comparison shows that, installation of ERV for an air-conditioning system is more economical by recovering additional cooling energy. © Springer-Verlag Berlin Heidelberg 2014.