한국분무공학회지 (Journal of ILASS-Korea)
- 제13권4호
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- Pages.173-179
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- 2008
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- 1226-2277(pISSN)
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- 2288-9051(eISSN)
저압형 급수가열기 추기노즐에서 동체 감육 완화에 관한 연구
A Study on the Relief of Shell Wall Thinning of Low Pressure Type Feedwater Heater Around the Extraction Nozzle Identified
- 발행 : 2008.12.31
초록
The current machinery and tools of secondary channel of the nuclear power plants were produced in the carbon-steel and low-alloy steel. What produced with the carbon-steel occurs wall thinning effect from flow accelerated corrosion by the fluid flow at high temperature, high pressure. Several nuclear power plants in Korea have experienced wall thinning damage in the area around the impingement baffle-installed. Wall thinning by flow accelerated corrosion occurs piping system, the heat exchanger, steam condenser and feedwater heaters etc,. Feedwater heaters of many nuclear power plants have recently experienced sever wall thinning damage, which will increase as operating time progress. This study describes the comparisons between the numerical results using the FLUENT code and experimental data of down scale model.
키워드