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

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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).
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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

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AU - Pohja, Rami

AU - Salonen, Jorma

N1 - VTT-R-05631-13

PY - 2013

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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).