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Cooler Casing Fatigue Analysis: An ASME Approach

  • Prathapkumar Ramamoorthy
  • David K. Harper
  • Sam P. Joseph
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

Extended surface heat exchangers are widely adopted in centrifugal air compressors to transfer heat from compressed air to cooling water. These heat exchangers are enclosed in a casing which is made either by casting or fabrication. This paper reviews the cast casing fatigue qualification as per ASME Section VIII Division 2 guidelines. Casing is considered as a pressure vessel in industry which needs to be certified by ASME or PED or GB or CRN depending on the location of use. Machine operating parameters were used as inputs for fatigue screening criteria to determine whether the fatigue analysis is required as part of casing design. On failing the screening criteria, a detailed fatigue evaluation was performed. Coupled field analysis were ran in ANSYS and the maximum stress intensity values are used to compare against the material’s fatigue criteria on the pressure boundary and non-pressure boundary regions separately, to qualify the casing.

Keywords

Fatigue qualification ASME fatigue screening Coupled field pressure vessel analysis Compressor load cycle and heat exchanger manufacturing 

References

  1. 1.
    Moss DR. Pressure vessel design manualGoogle Scholar
  2. 2.
    Keil B, Devletian J (2011) Comparison of the mechanical properties of steel and ductile iron pipe materials. Pipelines 2011: A Sound Conduit for Sharing Solutions © ASCE 2011, pp 1301–1312Google Scholar
  3. 3.
    Boyer HE. Atlas of fatigue curves. ASM international, p 261Google Scholar
  4. 4.
    ASME Section VIII Division 2, 5.5.2Google Scholar
  5. 5.
    Ansys Help DocumentationGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Prathapkumar Ramamoorthy
    • 1
  • David K. Harper
    • 2
  • Sam P. Joseph
    • 1
  1. 1.Compression Technologies & Services, Ingersoll-Rand Technologies & Services Private LimitedBangaloreIndia
  2. 2.Compression Technologies and Services, Ingersoll RandDavidsonUSA

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