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Monitoring of transient thermal stresses in pressure components of steam boilers using an innovative technique for measuring the fluid temperature

Author

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  • Jaremkiewicz, Magdalena
  • Dzierwa, Piotr
  • Taler, Dawid
  • Taler, Jan

Abstract

High thermal loads of the thick-walled components arise during the start-up and shutdown in the thermal power units, both classical and nuclear. The thermal stresses should be determined on-line during start-up of the power unit, to avoid reducing the lifetime of the so-called critical pressure components. It is necessary to know the time variations in fluid temperature, and heat transfer coefficient on the internal surface of the pressure components to determine the transient distribution of temperature and thermal stresses in the critical components of boilers. The thermal stress can only be calculated correctly if the temperature of the flowing fluid is accurately measured. Unfortunately, massive industrial thermometers used in power units are not able to measure the transient temperature of the fluid with sufficient accuracy due to their high thermal inertia. The goal of the paper is to present the use of the new measurement technique to determine the unsteady temperature of the superheated steam.

Suggested Citation

  • Jaremkiewicz, Magdalena & Dzierwa, Piotr & Taler, Dawid & Taler, Jan, 2019. "Monitoring of transient thermal stresses in pressure components of steam boilers using an innovative technique for measuring the fluid temperature," Energy, Elsevier, vol. 175(C), pages 139-150.
    • Handle: RePEc:eee:energy:v:175:y:2019:i:c:p:139-150
    DOI: 10.1016/j.energy.2019.03.049
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    Citations

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    Cited by:

    1. Magdalena Jaremkiewicz & Jan Taler, 2020. "Online Determining Heat Transfer Coefficient for Monitoring Transient Thermal Stresses," Energies, MDPI, vol. 13(3), pages 1-13, February.
    2. Taler, Jan & Trojan, Marcin & Dzierwa, Piotr & Kaczmarski, Karol & Węglowski, Bohdan & Taler, Dawid & Zima, Wiesław & Grądziel, Sławomir & Ocłoń, Paweł & Sobota, Tomasz & Rerak, Monika & Jaremkiewicz,, 2023. "The flexible boiler operation in a wide range of load changes with considering the strength and environmental restrictions," Energy, Elsevier, vol. 263(PB).
    3. Dawid Taler & Tomasz Sobota & Magdalena Jaremkiewicz & Jan Taler, 2020. "Influence of the Thermometer Inertia on the Quality of Temperature Control in a Hot Liquid Tank Heated with Electric Energy," Energies, MDPI, vol. 13(15), pages 1-18, August.
    4. Paweł Ziółkowski & Stanisław Głuch & Piotr Józef Ziółkowski & Janusz Badur, 2022. "Compact High Efficiency and Zero-Emission Gas-Fired Power Plant with Oxy-Combustion and Carbon Capture," Energies, MDPI, vol. 15(7), pages 1-39, April.
    5. Taler, Dawid & Dzierwa, Piotr & Taler, Jan, 2020. "New method for determining the optimum fluid temperature when heating pressure thick-walled components with openings," Energy, Elsevier, vol. 200(C).
    6. Trojan, Marcin & Taler, Jan & Smaza, Krzysztof & Wróbel, Wojciech & Dzierwa, Piotr & Taler, Dawid & Kaczmarski, Karol, 2022. "A new software program for monitoring the energy distribution in a thermal waste treatment plant system," Renewable Energy, Elsevier, vol. 184(C), pages 1055-1073.

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