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Pressure Losses Downstream of a Compact Valve in the Inlet Chamber of an Intermediate-Pressure Steam Turbine
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SYSNO ASEP 0564776 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Pressure Losses Downstream of a Compact Valve in the Inlet Chamber of an Intermediate-Pressure Steam Turbine Author(s) Sláma, V. (CZ)
Šimurda, David (UT-L) RID, ORCID
Lenhard, R. (SK)Article number 8753 Source Title Energies. - : MDPI
Roč. 15, č. 22 (2022)Number of pages 11 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords valve ; steam turbine ; measurement ; numerical analysis ; pressure loss Subject RIV BK - Fluid Dynamics OECD category Applied mechanics R&D Projects TN01000007 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Method of publishing Open access Institutional support UT-L - RVO:61388998 UT WOS 000887335400001 EID SCOPUS 85142644419 DOI 10.3390/en15228753 Annotation Deep knowledge about pressure and energy losses in each part of a steam turbine is crucial for assuring the required efficiency and operational reliability. This paper presents the experimental as well as the numerical study of pressure losses in the inlet chamber of an intermediate-pressure steam turbine. Measurements were carried out on a complex model, where not only was there an inlet turbine chamber, but also a compact valve assembly situated upstream and nozzles situated downstream. The compact valve as well as the turbine inlet chamber were relatively small. Therefore, greater pressure losses were expected. The aerodynamic laboratory of the Institute of Thermomechanics of the Czech Academy of Sciences was responsible for acquiring the measurements, which were carried out in a modular in-draft wind tunnel. In order to learn further details, numerical simulations were carried out. Doosan Skoda Power was responsible for this. A package of ANSYS software tools was used. Measured data were described and compared with numerical ones. Pressure losses were generalized in the form of the total pressure loss coefficient. As a result, pressure losses in similar turbine compact inlet chambers can be predicted with the required accuracy.
Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2023 Electronic address https://www.mdpi.com/1996-1073/15/22/8753/pdf?version=1669035338
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