Transactions of the Korean Society of Pressure Vessels and Piping (한국압력기기공학회 논문집)

Korean Society of Pressure Vessels and Piping (한국압력기기공학회)
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Application methodology of Type 316L stainless steel to a 700℃ heat exchanger

Type 316L 스테인리스강의 700℃ 열교환기에의 적용 방법론

  • Received : 2024.06.02
  • Accepted : 2024.06.13
  • Published : 2024.06.30
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Abstract

In this study, high temperature design and integrity evaluation methodology have been developed for Type 316L stainless steel air-to-sodium heat exchanger which uses 700℃ sodium as coolant. Currently the only design rules that take creep effects into consideration explicitly for the 316L stainless steel subjected to high temperature in the creep range are French RCC-MRx, where elevated temperature designs are possible around 550℃. Absent design coefficients at high temperature were determined based on the material properties newly determined in previous studies, and high-temperature design evaluation methodologies were developed based on 3D finite element analyses on the 700℃ class heat exchanger. In addition, works were conducted on the web-based design evaluation program of HITEP_RCC-MRx including incorporation of material properties and design coefficients up to 700℃. Methodologies on high temperature design evaluations on Type 316L stainless steel high-temperature heat exchanger were suggested.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부의 재원으로 국가과학기술연구회(CAP-20-03-KAERI)와 한국연구재단(2021R1l1 A2057941, 2021K1A3A1A78097845, 2021M2E2A2081063)의 지원을 받아 수행됨.

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