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Turbine cascades of last stage blades for wide range of operating conditions
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SYSNO ASEP 0518677 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články 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 International Journal of Turbomachinery, Propulsion and Power. - : MDPI
Roč. 33, č. 4 (2019), s. 1-10Number of pages 10 s. Publication form Online - E 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 blade ; 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) Method of publishing Open access Institutional support UT-L - RVO:61388998 DOI https://doi.org/10.3390/ijtpp4040033 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 Electronic address https://res.mdpi.com/d_attachment/ijtpp/ijtpp-04-00033/article_deploy/ijtpp-04-00033.pdf
Number of the records: 1