Paper Conference

Proceedings of ASim Conference 2016: 3rd Asia conference of IBPSA-China, Japan, Korea


Possibility of preventing condensation in an energy recovery ventilator using a preheat coil powered by a photovoltaic system

W. Kim, D. Yoon, J. Jeong

Abstract: In this study, we proposed a preheater required for an energy recovery ventilator (ERV) to prevent condensation occurring in the winter. To determine the frost threshold temperature in the total heat exchanger, the temperature equation was derived from the psychrometric chart as a function of outdoor air (OA), exhaust air (EA) conditions and the total heat exchanger effectiveness. Additionally, the capacity of the preheater was estimated based on the frost threshold temperature. Moreover, the application of a photovoltaic system was proposed to supply the electric power required for preheater operation and energy savings. The photovoltaic module size was determined based on the peak preheater load. The electric energy consumption of the preheater and the photovoltaic system size were calculated for the Seoul region based on a residential building.
Keywords: Energy recovery ventilator, Condensation, Frost, Preheater, Photovoltaic