E3S Web Conf.
Volume 108, 2019Energy and Fuels 2018
|Number of page(s)||11|
|Published online||05 July 2019|
The use of a solution of the inverse heat conduction problem to monitor thermal stresses
Institute of Thermal Power Engineering, Cracow University of Technology, Cracow, Poland
2 Institute of Thermal Engineering and Air Protection, Faculty of Environmental Engineering, Cracow, Poland
* Corresponding author: firstname.lastname@example.org
Thick-wall components of the thermal power unit limit maximum heating and cooling rates during start-up or shut-down of the unit. A method of monitoring the thermal stresses in thick-walled components of thermal power plants is presented. The time variations of the local heat transfer coefficient on the inner surface of the pressure component are determined based on the measurement of the wall temperature at one or six points respectively for one- and three-dimensional unsteady temperature fields in the component. The temperature sensors are located close to the internal surface of the component. A technique for measuring the fastchanging fluid temperature was developed. Thermal stresses in pressure components with complicated shapes can be computed using FEM (Finite Element Method) based on experimentally estimated fluid temperature and heat transfer coefficient
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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