CFD was used to study the change in the operation of the governor to check the effect of response delay due to residual air in the governor cylinder, which adjusts the pump RPM of the Turbine Driven Aux. Feed Water Pump(TD AFWP) in the Nuclear power plant. As a result of analysis, as the amount of internal air increased, the time delay also increased proportionally, and a time delay of up to 0.2 sec. occurred. As in the theory, it was confirmed that the cylinder operation delay occurred depending on the presence or absence of a compressive fluid such as air, but the time delay wat not enough to significantly affect the pump operation.
목차
ABSTRACT 1. 서론 2. 연구 방법 2.1 설계 조건 2.2 전산 유동해석(CFD) 3. 연구 결과 3.1 해석결과 4. 결론 References
키워드
조속기전산해석압축성 유동터빈구동 보조급수펌프피스톤 실린더VOF modelGovernorCFDCompressibility flowTD AFWPPiston cylinderVolume of Fluid model
저자
김명훈 [ Myeong-Hun Kim | Member ]
Corresponding Author