플래시 증발을 통한 해수온도차발전-저온도차 해수담수화 사이클 해석

Abstract

The ‘Kyoto Protocol’ and the ‘Paris Agreement’ were adopted to solve global environmental problems caused by greenhouse gases. In this study, a cycle analysis related to open OTEC, which is a renewable energy that can be linked with offshore green hydrogen, was performed to achieve the carbon neutral goal. The pressure change inside the flash chamber for evaporating surface water and the surface water temperature were used as variables to calculate and compare the system's power generation, freshwater production, and system's power consumption. The system used in this study showed higher power generation and fresh water as the surface water temperature and the pressure inside the chamber were lower. It showed turbine power generation of about 1671 kW, net power of 821 kW, and freshwater production of 26.94 kg/s at 30°C surface water temperature and 2.5 kPa pressure inside the chamber.