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

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

Energy, 2025, vol. 328, issue C

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.

Keywords: Transient thermal stress monitoring; Steam temperature measurement; Identification of wall temperature field; Measurement of heat transfer coefficient; Horizontal pressure elements (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:328:y:2025:i:c:s0360544225022790

DOI: 10.1016/j.energy.2025.136637

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