Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Lukáš Mrózek"'
A new design of an intercept valve assembly of the intermediate-pressure turbine part of greater power output is investigated in terms of pressure losses and flow fluctuations by using measurement on an experimental valve model. In addition, numerica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5e9f381654da52394d19b44ed2d98be
https://doi.org/10.1115/1.0004133v
https://doi.org/10.1115/1.0004133v
Publikováno v:
MATEC Web of Conferences, Vol 345, p 00027 (2021)
Characteristics of a new compact valve design for steam turbines are analysed by measuring pressure losses and oscillations on the valve model. It is the model of an intercept valve of the intermediate-pressure turbine part. This valve is relatively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3b4a9ce0126b56cba19ab58ea6fcb83
https://www.matec-conferences.org/articles/matecconf/pdf/2021/14/matecconf_pse2021_00027.pdf
https://www.matec-conferences.org/articles/matecconf/pdf/2021/14/matecconf_pse2021_00027.pdf
Publikováno v:
THERMOPHYSICAL BASIS OF ENERGY TECHNOLOGIES (TBET 2020).
The paper deals with a flow in control valves of steam turbines and in classical diffusers. The effect of the cone lift and the change of the flow cross-section on the energy losses is investigated. Total loss coefficients for a valve with a strainer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc7accb6c7e2e12c6dc2a9173acc586b
https://doi.org/10.1063/5.0042097
https://doi.org/10.1063/5.0042097
Jaderná elektrárna zahrnuje také sekundární cyklus, jehož hlavní složkou je parní turbína. Parní turbína zpracovává tepelnou a tlakovou energii páry a přeměňuje ji na mechanickou energii. Spolehlivý a bezpečný provoz parní turb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c8ffdc9946352f3bb7591625e4a894a
http://hdl.handle.net/11025/43659
http://hdl.handle.net/11025/43659
Publikováno v:
Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine.
Aerodynamic measurements and numerical simulations carried out on a model of a high-pressure valve assembly used for nozzle governing of a turbine with 135MW output are described in this paper. Aim of the study is to investigate effects of control va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34d26eccb9b824d120886f1396a770f9
https://doi.org/10.1115/gt2020-14474
https://doi.org/10.1115/gt2020-14474
Publikováno v:
Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine.
The paper deals with experimental research of the flow and dynamics of the blades in the last stage of a steam turbine with nominal output of 34 MW and a connected axial exhaust hood. The experiments were carried out on a turbine with relatively low
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d56d612cc9bed630b2e0809d6eb66286
https://doi.org/10.1115/gt2020-14280
https://doi.org/10.1115/gt2020-14280
Autor:
Kamil Sedlák, Michal Hoznedl, Ondřej Bartoš, Michal Kolovratnik, Robert Kalista, Lukáš Mrózek
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 232:515-524
This paper presents the experimental research for the flow of the last stage of a turbine for saturated steam with the nominal output 1090 MW. In addition, the flows in 600, 800, and 1070 MW output turbines were also measured. Pneumatic probes were u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c81e1609d3659556176df34e60b50303
https://doi.org/10.1177/0957650917749692
https://doi.org/10.1177/0957650917749692
Publikováno v:
Volume 6: Energy.
Exhaust casings are one of the most important steam turbine components. The main purpose of the exhaust casing is to increase the last stage enthalpy drop, which results in an increase of the whole turbine output. It plays a significant role especial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fa06bb4a416072ce660ebc20ff45154
https://doi.org/10.1115/imece2019-10267
https://doi.org/10.1115/imece2019-10267
Publikováno v:
18TH CONFERENCE OF POWER SYSTEM ENGINEERING, THERMODYNAMICS AND FLUID MECHANICS.
In this paper, a creation and a validation of the pressure loss model for the specific and widely used design of the steam turbine inlet control valve assembly called an L-valve is described. This model is based on a wide range of experimental measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0776076f3725846b1953ac7c331e3e1
https://doi.org/10.1063/1.5138632
https://doi.org/10.1063/1.5138632
Autor:
Lukáš Mrózek, Gukchol Jun
Publikováno v:
Volume 8B: Heat Transfer and Thermal Engineering.
Accuracy of numerical simulation of non-equilibrium steam condensation is strongly influenced by a condensation model, i.e. a nucleation rate model and a droplet growth model. Numerical studies of steam condensation in Laval nozzles show that the cho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82a9adfc4cb2058ed6e4105d1fe5baf3
https://doi.org/10.1115/imece2018-86571
https://doi.org/10.1115/imece2018-86571