High temperature design and evaluation of creep-fatigue damage for sodium-to-sodium heat exchanger, decay heat exchanger (DHX), in a sodium test loop have been conducted. The DHX is a shell- and tube-type heat exchanger with an outer diameter of 21.7 mm and effective length of 1.73 m. The DHX shell and tube materials were Mod.9Cr-1Mo steel. The temperatures of shell inlet and shell outlet in the DHX are 510 °C and 308 °C, respectively, while the temperatures of tube inlet and outlet are 254 °C and 475 °C, respectively. Three-dimensional finite element analysis was conducted for the DHX, and evaluation of creep-fatigue damage at several critical locations of the heat exchanger was carried out according to the elevated temperature design codes of the ASME Section III Subsection NH and RCC-MR. Evaluations on the integrity of the DHX and code comparisons were carried out for the critical locations of the DHX. The evaluation results showed that damages at the tubesheet joints of tube-to-tubesheet and tubesheet-to-shell were not so critical in the present DHX model.
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October 2012
Codes And Standards
High Temperature Design and Damage Evaluation of MOD.9Cr-1Mo Steel Heat Exchanger
Hyeong-Yeon Lee,
Hyeong-Yeon Lee
Korea Atomic Energy Research Institute
, 150 Dukjin-dong, Yusong-gu, Daejeon 305-353, Republic of Korea
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Jong-Bum Kim,
Jong-Bum Kim
Korea Atomic Energy Research Institute
, 150 Dukjin-dong, Yusong-gu, Daejeon 305-353, Republic of Korea
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Hong-Yune Park
Hong-Yune Park
AD-Solution Co., Ltd.
, 1101 Hanjin Officetel 535-5, Bongmyoung-dong Yusong-gu, Daejeon 305-301, Republic of Korea
Search for other works by this author on:
Hyeong-Yeon Lee
Korea Atomic Energy Research Institute
, 150 Dukjin-dong, Yusong-gu, Daejeon 305-353, Republic of Korea
Jong-Bum Kim
Korea Atomic Energy Research Institute
, 150 Dukjin-dong, Yusong-gu, Daejeon 305-353, Republic of Korea
Hong-Yune Park
AD-Solution Co., Ltd.
, 1101 Hanjin Officetel 535-5, Bongmyoung-dong Yusong-gu, Daejeon 305-301, Republic of Korea
J. Pressure Vessel Technol. Oct 2012, 134(5): 051101 (10 pages)
Published Online: September 10, 2012
Article history
Received:
May 12, 2011
Revised:
November 16, 2011
Online:
September 10, 2012
Published:
September 10, 2012
Citation
Lee, H., Kim, J., and Park, H. (September 10, 2012). "High Temperature Design and Damage Evaluation of MOD.9Cr-1Mo Steel Heat Exchanger." ASME. J. Pressure Vessel Technol. October 2012; 134(5): 051101. https://doi.org/10.1115/1.4005938
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