전산유체해석을 이용한 유량 측정 시스템 계통오차 평가 및 원심형 펌프의 성능시험 방법 개선
A Study on the Evaluation of Systematic Error in the Flowrate Measurement System and Application to the Centrifugal Pump Performance Test Method using Computational Fluid Dynamics Analysis
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초록
Failure to comply with the performance test requirements for the centrifugal pumps at power plants often results in performance dissatisfaction as a result of field tests. This study proposed a method of reducing the uncertainty of the field test results by evaluating the systematic error in the measurement system caused by failure to follow the test requirements using the computational fluid dynamics(CFD) technique. As a result of the evaluation of the systematic error and reflecting it in the performance test data, it was confirmed that the error occurred at a constant rate with respect to the flowrate and that the pump, which showed a difference in performance actually had the same performance.
Abstract
Failure to comply with the performance test requirements for the centrifugal pumps at power plants often results in performance dissatisfaction as a result of field tests. This study proposed a method of reducing the uncertainty of the field test results by evaluating the systematic error in the measurement system caused by failure to follow the test requirements using the computational fluid dynamics(CFD) technique. As a result of the evaluation of the systematic error and reflecting it in the performance test data, it was confirmed that the error occurred at a constant rate with respect to the flowrate and that the pump, which showed a difference in performance actually had the same performance.
참고문헌 (3)
- 한국표준과학연구원, "측정불확도 제3부 : 측정불확도 표현 지침(GUM : 1995)", 한국표준과학연구원, 5~ (2010)
- Robert M. Corless, "A graduate introduction to numerical methods", pp.437~444 (2013), Springer
- Frank M. White, "Fluid Mechanics", pp.655~ (1994), McGRAW-HILL