지중 순환수 펌프 유량 변화에 따른 지열 히트펌프 시스템 성능 평가에 관한 연구

Globally, interest of energy conservation and efficient use is increasing. In addition, necessity of renewable energy development and utilization is increasing. Installation and operation of geothermal system that heating and cooling system efficiency is high and environmentally friendly is increasing. But, there is difficulty efficiency operation of geothermal heat pump system. The most of buildings installed geothermal heat pumps is using fixed water flow rate. When the partial air-conditioning load, constant flow pump waste energy and perfomance of geothermal heat pump system is reduced. Therefore, the purpose of this study is to propose a geothermal heat pump system performance improvement measure through the flow control of geothermal water circulation pump. And to analysis system performance enhancement through variable flow control system and identify the need for flow control of geothermal water circulation pump.