0564776 - ÚT 2023 RIV CH eng J - Článek v odborném periodiku
Sláma, V. - Šimurda, David - Lenhard, R.
Pressure Losses Downstream of a Compact Valve in the Inlet Chamber of an Intermediate-Pressure Steam Turbine.
Energies. Roč. 15, č. 22 (2022), č. článku 8753. ISSN 1996-1073. E-ISSN 1996-1073
Grant CEP: GA TA ČR(CZ) TN01000007
Institucionální podpora: RVO:61388998
Klíčová slova: valve * steam turbine * measurement * numerical analysis * pressure loss
Obor OECD: Applied mechanics
Impakt faktor: 3.2, rok: 2022 ; AIS: 0.439, rok: 2022
Způsob publikování: Open access
Web výsledku:
https://www.mdpi.com/1996-1073/15/22/8753/pdf?version=1669035338
DOI: https://doi.org/10.3390/en15228753

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.

Trvalý link: https://hdl.handle.net/11104/0337618