Theoretische und experimentelle Untersuchungen zum Kriechbeulen von Rohren aus NiCr 22 Co 12 Mo
Theoretische und experimentelle Untersuchungen zum Kriechbeulen von Rohren aus NiCr 22 Co 12 Mo
The postulated pressure loss of the secondary circuit is one of the hardest loading conditions for the heat exchanging components in a HTGR plant. It is to proof for the design that the heat exchanging metallic components (heat exchanger or reformer tubes of a PNP plant for instance) do not collapse...
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Personal Name(s): | Ahmed, K. (Corresponding author) |
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Breitbach, G. / Over, H. / Schubert, F. / Nickel, Hubertus | |
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Kernforschungsanlage Jülich GmbH, Zentralbiliothek, Verlag
1988
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Physical Description: |
II, 113 p. |
Document Type: |
Report Book |
Research Program: |
Addenda |
Series Title: |
Berichte der Kernforschungsanlage Jülich
2224 |
Link: |
OpenAccess |
Publikationsportal JuSER |
The postulated pressure loss of the secondary circuit is one of the hardest loading conditions for the heat exchanging components in a HTGR plant. It is to proof for the design that the heat exchanging metallic components (heat exchanger or reformer tubes of a PNP plant for instance) do not collapse under such an emergency condition. An external pressure Pa stressed tubes or cylindric shells at a pressure loss of a secondary circuit side. This external pressure buckles the tubes in dependence of the fabrication implied out of roundness o (fabrication tolerances) by material creep in the high temperature region. This creep buckling ends in a failure (collapse) of the component after a critical time t$_{cr}$. The aim of the sork is the experimental verification of creep buckling behaviour for the heat exchanger components and the comparison with different constitutive equations. With these equations safety factors can be formulated against as well the critical collapse time and pressure as the permissible out of roundness from fabrication. |