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Monitoring of transient temperature and thermal stresses in pressure components of steam boilers
Authors:Jan Taler  Bohdan W?glowski  Wies?aw Zima  S?awomir Gra?dziel  Marcin Zborowski
Affiliation:

Institute of Process and Power Engineering, Faculty of Mechanical Engineering, Cracow University of Technology, ul. Warszawska 24, PL-31-155, Kraków, Poland

Abstract:Two methods of solving the transient inverse heat conduction problens in complex shaped elements are presented in this paper. The time-space temperature distribution in whole element cross-section is reconstructed using the measured temperature histories at several points placed inside the element or on its easily accessible outer surface. Thermal stresses are then evaluated involving Finite Element Analysis. In both methods the heat transfer coefficient at the element inner surface is the unknown value. Four examples are presented, two for one method showing the high accuracy of the presented methods and possibility of their practical application.
Keywords:
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