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Online determination of the heat transfer coefficient at the inner surface of a cylindrical component in a thermal stress monitoring system for critical boiler pressure components

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  • Taler, Jan
  • Kaczmarski, Karol
  • Taler, Dawid
  • Dzierwa, Piotr
  • Trojan, Marcin
  • Sobota, Tomasz

Abstract

In systems for monitoring thermal stresses and residual life in pressurised components of power plant machinery and equipment, it is essential to measure the HTC at the internal surface of the component. The temperature and heat flux at the surface of the pressure element is determined by measuring the wall temperature near the inner surface of the element due to the difficulty of locating a sensor to measure the temperature at the inner surface of the element. The online HTC determination time should be shorter than the data sampling time.

Suggested Citation

  • Taler, Jan & Kaczmarski, Karol & Taler, Dawid & Dzierwa, Piotr & Trojan, Marcin & Sobota, Tomasz, 2025. "Online determination of the heat transfer coefficient at the inner surface of a cylindrical component in a thermal stress monitoring system for critical boiler pressure components," Energy, Elsevier, vol. 328(C).
    • Handle: RePEc:eee:energy:v:328:y:2025:i:c:s0360544225022790
    DOI: 10.1016/j.energy.2025.136637
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    References listed on IDEAS

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    1. Chen, Xudong & Ji, Yutao & Yan, Dong & Jia, Lichao & Han, Xiaotao & Wu, Kaiming & Yang, Jiajun & Li, Jian, 2024. "Thermal stress and contact analysis utilizing tested temperature data in a kW-class external-manifold solid oxide fuel cell stack," Applied Energy, Elsevier, vol. 370(C).
    2. Taler, D. & Taler, J. & Kaczmarski, K. & Jaremkiewicz, M. & Dzierwa, P. & Trojan, M., 2024. "Monitoring of thick-walled pressure elements to determine transient temperature and stress distributions using the measured fluid's pressure and wall's temperature," Energy, Elsevier, vol. 309(C).
    3. Liu, Zefeng & Wang, Chaoyang & Fan, Jianlin & Liu, Ming & Xing, Yong & Yan, Junjie, 2024. "Enhancing the flexibility and stability of coal-fired power plants by optimizing control schemes of throttling high-pressure extraction steam," Energy, Elsevier, vol. 288(C).
    4. 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.
    5. 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).
    6. Taler, Jan & Taler, Dawid & Kaczmarski, Karol & Dzierwa, Piotr & Trojan, Marcin & Sobota, Tomasz, 2018. "Monitoring of thermal stresses in pressure components based on the wall temperature measurement," Energy, Elsevier, vol. 160(C), pages 500-519.
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