방류수를 이용한 압축공기 생성 메커니즘 연구

Abstract

Currently, with the increase in electricity consumption, the demand to reduce carbon emissions has increased manifolds. Lots of researches are under way to keep pace with this requirement. An interesting methodology to reduce the carbon emissions is getting popular in the recent days. The compressed air is created and is stored with secondary power in the night time, and this compressed air is used for electricity generation in the day time. However the creation method of compressed air doesn't get away from using compressors which consume huge power. We can reduce tremendous amount of electricity if we can create compressed air without using compressors. For this purpose, we need to develop a device which can create compressed air without consuming electricity. There are many water reservoirs and small dams which discharge plenty of water in the country. The potential energy of discharged water may be reused with small hydro power. But, small hydro power needs high installation costs and operation ones. Therefore it has not come into wide use. Also, it is difficult to reuse discharged potential energy. If compressed air is created using discharged water, we can conserve a lot of electricity . In this study, we develop a device which makes the air compressed using discharged water in a sealed chamber. The device can fully reuse discharged water because the structure is relatively simple and initial installation cost is low. This study simulates internal flow in such device with commercial CFD (Computational fluid dynamics) tools. Through the simulations, it will be possible to improve the performance and stability of the device.