Thermal-strength analysis of a slow closing valve during accelerated startup of a steam turbine

  • Mateusz Bryk Institute of Fluid-Flow Machinery Polish Academy of Sciences, Gdansk

Abstract

This study assesses the accelerated startup of a steam turbine from the perspective of a slow closing valve. Valves are one of the first components affected by high temperature gradients and are key components on which the power, efficiency and safety of the steam system depends. The authors calibrated the valve model based on experimental data and then performed extended Thermal-FSI analyses relative to the experiment. Key results of the work include the possibility to reduce the startup time of a steam turbine while complying with stress limits and not excessively straining structural components of the valve. The single most important finding is that there is no need to change valves when accelerating the startup of steam turbines.

Author Biography

Mateusz Bryk, Institute of Fluid-Flow Machinery Polish Academy of Sciences, Gdansk
Energy Conversion DepartmentCentre of Flow and CombustionSpecialist
Published
2022-08-28
How to Cite
BRYK, Mateusz. Thermal-strength analysis of a slow closing valve during accelerated startup of a steam turbine. Journal of Power Technologies, [S.l.], v. 102, n. 2, p. 68-78, aug. 2022. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/1781>. Date accessed: 30 nov. 2022.
Section
Power Plant

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