Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Stress Analysis and Evaluation of Steam Separator of Heat Recovery Steam Generator (HRSG)

배열회수보일러 기수분리기의 응력해석 및 평가

  • Lee, Boo-Youn (Dept. of Mechanical & Automotive Engineering, KEIMYUNG UNIV.)
  • 이부윤 (계명대학교 기계자동차공학전공)
  • Received : 2018.05.09
  • Accepted : 2018.05.31
  • Published : 2018.08.31
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Abstract

Stress of a steam separator, equipment of the high-pressure (HP) evaporator for a HRSG, was analyzed and evaluated according to ASME Boiler & Pressure Vessel Code Section VIII Division 2. First, from the analysis results of the piping system model of the HP evaporator, reaction forces of the riser tubes connected to the steam separator, i.e., nozzle loads, were derived. Next, a finite element model of the steam separator was constructed and analyzed for the design pressure and the nozzle loads. The results show that the maximum stress occurred at the bore of the riser nozzle. The primary membrane stresses at the shell and nozzle were found to be less than the allowable stress. Next, the steam separator was analyzed for the steady-state operating conditions of operating pressure, operating temperature, and nozzle loads. The maximum stress occurred at the bore of the riser nozzle. The primary plus secondary membrane plus bending stress at the shell and nozzle was found to be less than the allowable stress.

Keywords

References

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