복합화력 발전용 보일러 블로우다운 탱크 내부유동 수치해석

Abstract

In this study, the blow down system in thermal power plant which is the device for avoid concentration of impurities using high pressure steam is discussed in order to improve system safety performance. To analyze the steam flow in the blow-down tank, the Computational Fluid dynamics(CFD) technique is adopted for calculating physical phenomena quantitatively such as pressure, velocity fields. The pressure concentrations in specific area are observed and the results show fluctuations in drain line originated from increased inner pressure and fluctuating vortex core.