Tube failure of the heat exchanger E-20-128

Pertti Auerkari, Rami Pohja, Jorma Salonen

    Research output: Book/ReportReport

    Abstract

    Based on inspection and measurements of tube samples, the root causes of tube failures in the heat exchanger E-20-128 have been assessed. The perforating damage on the external surface of the failed tube is a round 2mm hole that originated from an internal corrosion pit. The tube material shows otherwise no obvious deficiencies, but the inner surface is covered by relatively thick blistered oxide. The thick internal oxide that was formed at relatively high temperature appears to point to fabrication-related deviation from the intended tube condition.
    Original languageEnglish
    PublisherVTT Technical Research Centre of Finland
    Number of pages20
    Publication statusPublished - 2013
    MoE publication typeD4 Published development or research report or study

    Publication series

    SeriesVTT Research Report
    NumberVTT-R-05631-13

    Fingerprint

    Heat exchangers
    Perforating
    Oxides
    Inspection
    Corrosion
    Fabrication
    Temperature

    Keywords

    • tube failure
    • corrosion

    Cite this

    Auerkari, P., Pohja, R., & Salonen, J. (2013). Tube failure of the heat exchanger E-20-128. VTT Technical Research Centre of Finland. VTT Research Report, No. VTT-R-05631-13
    Auerkari, Pertti ; Pohja, Rami ; Salonen, Jorma. / Tube failure of the heat exchanger E-20-128. VTT Technical Research Centre of Finland, 2013. 20 p. (VTT Research Report; No. VTT-R-05631-13).
    @book{8231da3adeb04b8bb6a3bfec90d98a5f,
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    abstract = "Based on inspection and measurements of tube samples, the root causes of tube failures in the heat exchanger E-20-128 have been assessed. The perforating damage on the external surface of the failed tube is a round 2mm hole that originated from an internal corrosion pit. The tube material shows otherwise no obvious deficiencies, but the inner surface is covered by relatively thick blistered oxide. The thick internal oxide that was formed at relatively high temperature appears to point to fabrication-related deviation from the intended tube condition.",
    keywords = "tube failure, corrosion",
    author = "Pertti Auerkari and Rami Pohja and Jorma Salonen",
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    Auerkari, P, Pohja, R & Salonen, J 2013, Tube failure of the heat exchanger E-20-128. VTT Research Report, no. VTT-R-05631-13, VTT Technical Research Centre of Finland.

    Tube failure of the heat exchanger E-20-128. / Auerkari, Pertti; Pohja, Rami; Salonen, Jorma.

    VTT Technical Research Centre of Finland, 2013. 20 p. (VTT Research Report; No. VTT-R-05631-13).

    Research output: Book/ReportReport

    TY - BOOK

    T1 - Tube failure of the heat exchanger E-20-128

    AU - Auerkari, Pertti

    AU - Pohja, Rami

    AU - Salonen, Jorma

    N1 - VTT-R-05631-13

    PY - 2013

    Y1 - 2013

    N2 - Based on inspection and measurements of tube samples, the root causes of tube failures in the heat exchanger E-20-128 have been assessed. The perforating damage on the external surface of the failed tube is a round 2mm hole that originated from an internal corrosion pit. The tube material shows otherwise no obvious deficiencies, but the inner surface is covered by relatively thick blistered oxide. The thick internal oxide that was formed at relatively high temperature appears to point to fabrication-related deviation from the intended tube condition.

    AB - Based on inspection and measurements of tube samples, the root causes of tube failures in the heat exchanger E-20-128 have been assessed. The perforating damage on the external surface of the failed tube is a round 2mm hole that originated from an internal corrosion pit. The tube material shows otherwise no obvious deficiencies, but the inner surface is covered by relatively thick blistered oxide. The thick internal oxide that was formed at relatively high temperature appears to point to fabrication-related deviation from the intended tube condition.

    KW - tube failure

    KW - corrosion

    M3 - Report

    T3 - VTT Research Report

    BT - Tube failure of the heat exchanger E-20-128

    PB - VTT Technical Research Centre of Finland

    ER -

    Auerkari P, Pohja R, Salonen J. Tube failure of the heat exchanger E-20-128. VTT Technical Research Centre of Finland, 2013. 20 p. (VTT Research Report; No. VTT-R-05631-13).