The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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A Conceptual Study of an Air-cooled Heat Exchanger for an Integral Reactor

일체형 원자로의 공랭식 열교환기 개념 연구

  • Received : 2015.11.06
  • Accepted : 2016.03.08
  • Published : 2016.04.01
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Abstract

A conceptual study of an air-cooled heat exchanger is conducted to achieve the long-term passive cooling of an integral reactor. A newly designed air-cooled heat exchanger is introduced in the present study and preliminary thermal sizing is demonstrated. This study mainly focuses on feasibility of an innovative air-cooled heat exchanger to extend the cooling period of the passive residual heat removal system(PRHRS) only in passive manners. A vertical shell-and-tube air-cooled heat exchanger is installed at the top of the emergency cooldown tank(ECT) to collect evaporated steam into condensate, which enables water inventory of the ECT to be kept. Finally, thermal sizing of an air-cooled heat exchanger is presented. The length and the number of tubes required, and also the height of a stack are calculated to remove the designated heat duty. The present study will contribute to an enhancement of the passive safety system of an integral reactor.

Keywords

References

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  1. 소형화된 피동응축용 냉각탱크 내 온도분포와 비등현상에 관한 실험적 연구 vol.27, pp.3, 2016, https://doi.org/10.7735/ksmte.2018.27.3.262