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공기중과 고온고수압환경하에서 CANDU Zr-2.5Nb 압력관의 DHCV 비교
조선영(Sun Young Cho),김영석(Young Suk Kim),오동준(Dong Jun Oh),임경수(Kyoung Su Im),임영우(Young Uh Im) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.3
Zr-2.5Nb Pressure tube was used in the distilled water under high temperature and pressure. However, the evaluation of DHCV for pressure tube was limited in the air until now. Therefore, it was necessary for DHCV both in the air and in the distilled water under high temperature and pressure to evaluate. In advance, new DHC equipment simulating the real operating condition in the distilled water under high temperature and pressure was developed and DHCV test was conducted by this equipment. The test was carried out under simulated condition using distilled water of 250℃, 86bar and this result was compared with that of DHCV in the air of 250℃. DHCV of the distilled water was ranged from 8.42×10?? to 9.92×10?? m/s and the average value was 9.01×10?? m/s. As compared with the air condition, it was found that the characteristics of DHCV was not affected by the distilled water of high temperature and pressure. In addition, DHC equipment for high temperature and pressure was satisfied with the reliable conditions such as sealing, temperature control and data acquisition.