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Turbine Cascades of Last Stage Blades for Wide Range of Operating Conditions
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SYSNO ASEP 0508969 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Turbine Cascades of Last Stage Blades for Wide Range of Operating Conditions Author(s) Novák, O. (CZ)
Bobčík, M. (CZ)
Luxa, Martin (UT-L) RID, ORCID
Fořt, J. (CZ)
Rudas, B. (CZ)
Synáč, J. (CZ)
Šimurda, David (UT-L) RID, ORCID
Fürst, J. (CZ)
Halama, J. (CZ)
Hric, V. (CZ)
Příhoda, Jaromír (UT-L) RID, ORCID
Šimka, Z. (CZ)Source Title 13th European Turbomachinery Conference on Turbomachinery Fluid Dynamics and Thermodynamics. - Lausanne : European Turbomachinery Society, 2019 Number of pages 10 s. Action European Turbomachinery Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2019 /13./ Event date 08.04.2019 - 12.04.2019 VEvent location Lausanne Country CH - Switzerland Event type WRD Language eng - English Country CH - Switzerland Keywords turbine ; cascade ; last stage blad ; CFD ; experimental validation Subject RIV BK - Fluid Dynamics OECD category Applied mechanics R&D Projects TH02020057 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support UT-L - RVO:61388998 EID SCOPUS 85065992569 Annotation Recent trends in the electric energy market such as biomass, waste incineration or combined cycle power plants require innovative solutions in steam turbine design. Variable operating conditions cause significant changes in flow field surrounding the steam turbine last stage blades. Therefore, the enlargement of operating range for last stage blades presents new challenges in design of turbine cascades. Several turbine cascades were designed and analyzed by commercial and in-house software of CTU Prague. Selected profiles were experimentally validated in the high-speed wind tunnel for 2D cascade measurements of the Institute of Thermomechanics of the Czech Academy of Sciences which is equipped by an adjustable supersonic inlet nozzle, perforated inserts at side walls and adjustable perforated tailboard. Comparisons are presented of numerical results with optical and pneumatic measurements for a wide range of inlet and outlet Mach numbers for optimized hub and tip profile cascades. 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 2020
Number of the records: 1