해수 담수화 공정의 고압펌프 가변속 운전에 따른 동력 절감

Abstract

In seawater reverse osmosis desalination plant, pumps consume nearly 90% of the electrical energy. The purpose of this study is to compare the energy consumptions of the high pressure pump before the installation of inverter and after the installation of the inverter and to evaluate the performance of variable speed driven high pressure pump. Calculated energy saving of the variable speed driven high pressure pump was around 14% at relatively clean condition of the membrane. However, the certain extent of the saving should be continuously monitored year by year depending on the fouling and aging of the membranes.