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High-Temperature Structural-Analysis Model of Process Heat Exchanger for Helium Gas Loop (I)

헬륨가스루프 시험용 공정열교환기에 대한 고온구조해석 모델링 (I)

  • Received : 2010.05.04
  • Accepted : 2010.06.23
  • Published : 2010.09.01

Abstract

In large-scale production of hydrogen, a PHE (Process Heat Exchanger) is a key component because the heat required to carry out the Sulfur-Iodine chemical reaction that yields hydrogen is transferred from a VHTR (Very High Temperature Reactor) by the PHE. Korea Atomic Energy Research Institute established a helium gas loop for conducting performance test of components that are used in the VHTR. In this study, as a part of high-temperature structural-integrity evaluation of a designed PHE prototype that is scheduled to be tested in the helium gas loop, we carried out high-temperature structural-analysis modeling, thermal analysis, and thermal-expansion analysis for the designed PHE prototype. An appropriate constraint condition is proposed at the end of the in-flow and out-flow pipelines of the primary and secondary coolants and the proposed constraint condition will be applied to the design of the performance-test loop setup for the designed PHE prototype.

초고온가스로에서 생성된 $950^{\circ}C$ 정도의 초고온 열을 이용하여 수소를 경제적이며 또한 대량으로 생산하기 위한 시스템이 원자력수소생산시스템이며, 공정열교환기는 초고온 열과 황-요오드 공정을 통해 수소를 생산하는 원자력수소생산시스템에서의 핵심 기기이다. 한국원자력연구원에서는 초고온가스로에 사용될 기기에 대한 성능시험을 위해 최대 작동 설계온도 $1000^{\circ}C$인 헬륨가스루프를 구축하고 있으며 공정열교환기를 설계하였다. 본 연구에서는 구축중인 헬륨가스루프에서 성능시험을 수행할 예정으로 설계된 공정열교환기에 대한 고온 구조건전성을 미리 평가하기 위한 작업의 일환으로 고온구조해석 모델링, 열해석 및 열팽창 해석을 수행한 결과를 정리한 것이다. 해석결과를 이용하여 설계된 공정열교환기의 구조건전성을 유지하기 위한 1 차 및 2 차 열매체의 유입/유출 파이프라인에서의 적절한 구속조건을 결정하였으며 이를 향후 제작될 공정열교환기 시제품의 성능시험 장치 설계에 반영할 것이다.

Keywords

References

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  2. High-Temperature Structural Analysis Model of the Process Heat Exchanger for Helium Gas Loop (II) vol.34, pp.10, 2010, https://doi.org/10.3795/KSME-A.2010.34.10.1455
  3. High-Temperature Structural Analysis of a Small-Scale Prototype of a Process Heat Exchanger (IV) - Macroscopic High-Temperature Elastic-Plastic Analysis - vol.35, pp.10, 2011, https://doi.org/10.3795/KSME-A.2011.35.10.1249
  4. Macroscopic High-Temperature Structural Analysis Model for a Small-Scale PCHE Prototype (I) vol.35, pp.11, 2011, https://doi.org/10.3795/KSME-A.2011.35.11.1499
  5. High-temperature Structural Analysis of Small-scale Prototype of Process Heat Exchanger (III) vol.35, pp.2, 2011, https://doi.org/10.3795/KSME-A.2011.35.2.191
  6. High-Temperature Structural Analysis of a Medium-Scale Process Heat Exchanger Prototype vol.36, pp.10, 2012, https://doi.org/10.3795/KSME-A.2012.36.10.1283