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Determination of Transient Fluid Temperature and Thermal Stresses in Pressure Thick-Walled Elements Using a New Design Thermometer

Author

Listed:
  • Magdalena Jaremkiewicz

    (Institute of Thermal Power Engineering, Cracow University of Technology, Al. Jana Pawła II 37, 31-866 Cracow, Poland)

  • Dawid Taler

    (Department of Thermal Processes, Air Protection, and Waste Utilization, Cracow University of Technology, ul. Warszawska 24, 31-155 Cracow, Poland)

  • Piotr Dzierwa

    (Institute of Thermal Power Engineering, Cracow University of Technology, Al. Jana Pawła II 37, 31-866 Cracow, Poland)

  • Jan Taler

    (Institute of Thermal Power Engineering, Cracow University of Technology, Al. Jana Pawła II 37, 31-866 Cracow, Poland)

Abstract

In both conventional and nuclear power plants, the high thermal load of thick-walled elements occurs during start-up and shutdown. Therefore, thermal stresses should be determined on-line during plant start-up to avoid shortening the lifetime of critical pressure elements. It is necessary to know the fluid temperature and heat transfer coefficient on the internal surface of the elements, which vary over time to determine transient temperature distribution and thermal stresses in boilers critical pressure elements. For this reason, accurate measurement of transient fluid temperature is very significant, and the correct determination of transient thermal stresses depends to a large extent on it. However, thermometers used in power plants are not able to measure the transient fluid temperature with adequate accuracy due to their massive housing and high thermal inertia. The article aims to present a new technique of measuring transient superheated steam temperature and the results of its application on a real object.

Suggested Citation

  • Magdalena Jaremkiewicz & Dawid Taler & Piotr Dzierwa & Jan Taler, 2019. "Determination of Transient Fluid Temperature and Thermal Stresses in Pressure Thick-Walled Elements Using a New Design Thermometer," Energies, MDPI, vol. 12(2), pages 1-21, January.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:2:p:222-:d:196939
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    Citations

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    Cited by:

    1. Jan Taler & Paweł Ocłoń & Marcin Trojan & Abdulmajeed Mohamad, 2019. "Selected Papers from the XI International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2018)," Energies, MDPI, vol. 12(12), pages 1-3, June.
    2. Magdalena Jaremkiewicz & Jan Taler, 2020. "Online Determining Heat Transfer Coefficient for Monitoring Transient Thermal Stresses," Energies, MDPI, vol. 13(3), pages 1-13, February.
    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. Taler, Dawid & Dzierwa, Piotr & Kaczmarski, Karol & Taler, Jan, 2021. "Optimisation of heating and cooling of pressure thick-walled components operating in the saturated steam area," Energy, Elsevier, vol. 231(C).
    5. Taler, Dawid & Sobota, Tomasz & Jaremkiewicz, Magdalena & Taler, Jan, 2022. "Control of the temperature in the hot liquid tank by using a digital PID controller considering the random errors of the thermometer indications," Energy, Elsevier, vol. 239(PE).
    6. Magda Joachimiak, 2021. "Analysis of Thermodynamic Parameter Variability in a Chamber of a Furnace for Thermo-Chemical Treatment," Energies, MDPI, vol. 14(10), pages 1-18, May.
    7. 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.
    8. Karol Kaczmarski, 2022. "Identification of Transient Steam Temperature at the Inlet of the Pipeline Based on the Measured Steam Temperature at the Pipeline Outlet," Energies, MDPI, vol. 15(16), pages 1-18, August.
    9. Taler, Dawid & Dzierwa, Piotr & Kaczmarski, Karol & Taler, Jan, 2022. "Increase the flexibility of steam boilers by optimisation of critical pressure component heating," Energy, Elsevier, vol. 250(C).

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