밀폐형 유리온실에서의 냉난방에너지 절감을 위한 자동제어 댐퍼시스템 설계 Design of Automatic Control Damper System for Heating and Cooling Energy Savings in Closed Glass Greenhouse
pp.397-404
A new design concept for integrated thermal energy storage system is suggested to increase energy saving rate for heating and cooling system of the closed glass greenhouse. Heat pump of air source is installed in the mechanical room and air flows then controlled by damper system located between the greenhouse and outdoor environments. A damper control algorithm is designed to enhance the usage of excessive energy in the glass greenhouse. Since the proposed system is installed at the actual glass greenhouse site for experimental verification of energy savings, the proposed system with damper control is compared with conventional greenhouse heating and cooling system. From results, it is found that more than 10% increase of energy saving rate is achieved.