Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Christian Musch"'
Publikováno v:
Journal of the Global Power and Propulsion Society, Vol 1, Iss 1 (2017)
Today’s steam turbine power plants are designed for highest steam inlet temperatures up to 620°C to maximize thermal efficiency. This leads to elevated thermal stresses in rotors and casings of the turbines. Hence, temperature distributions of the
Externí odkaz:
https://doaj.org/article/21a8a782508a4c9eb1610c456e1086ae
Publikováno v:
Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine.
Control valves of steam turbines are exposed to large static and dynamic forces caused by pressure fluctuations, turbulence and other influences, especially in part-load operation. Excitation of acoustic modes in cavities is one of these causes that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ff556fb2a55a2879f27724078a2f731
https://doi.org/10.1115/gt2022-80688
https://doi.org/10.1115/gt2022-80688
Publikováno v:
LWT. 171:114130
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::553dfab7b06eb92f98573d50751488b9
https://doi.org/10.1016/j.lwt.2022.114130
https://doi.org/10.1016/j.lwt.2022.114130
Publikováno v:
Periodica Polytechnica Mechanical Engineering. 60:185-192
The flow in a steam turbine inlet valve is investigated and improved by numerical methods. From the fluid dynamic point of view two requirements exist: Low pressure losses are desired at the fully opened valve position and dynamic fluid forces acting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::810818a1144bcbf62335e60de8b0972c
https://doi.org/10.3311/ppme.9041
https://doi.org/10.3311/ppme.9041
Publikováno v:
Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines.
The power output of steam turbines is controlled by steam turbine inlet valves. These valves have a large flow capacity and dissipate a huge amount of energy in throttled operation mode. The dissipation process generates strong pressure fluctuations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f569fff8675b6e8624be3fc1e7b7d2b
https://doi.org/10.1115/gt2018-75094
https://doi.org/10.1115/gt2018-75094
Publikováno v:
Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines.
Renewable energies are increasingly contributing to the overall volume of the electricity grid and demand besides high efficiency, greater flexibility of the conventional fossil power plants. To optimize these objectives, extensive CFD calculations a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::745b52eb43b5d83e9f982d812ccb23ef
https://doi.org/10.1115/gt2018-75261
https://doi.org/10.1115/gt2018-75261
Publikováno v:
Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines.
This work presents a robust multi-objective optimization of a labyrinth seal used in power plants steam turbines. The conflicting objectives of this optimization are to minimize the mass flow and to minimize the total enthalpy increase in order to in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a1daa709c24aaeca8e715aba0a04f62
https://doi.org/10.1115/gt2018-75262
https://doi.org/10.1115/gt2018-75262
In steam turbine inlet valves used to adjust the power output of large steam turbines, the through-flow is reduced by lowering the valve plug and hence reducing the cross-sectional area between the plug and the seat. At throttled operation, a superso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5166d09d99635bd6f3be19be6691f231
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85020287314
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85020287314
Publikováno v:
European Conference on Turbomachinery Fluid Dynamics and hermodynamics.
In this study a strategy for a 3D optimisation of the exhaust of a low pressure (LP) steam turbine is presented. The ?ow domain utilized consists of both the last stage and the exhaust diffuser. The optimisation is done with the help of a hybrid surr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf2cb8a6a0512fc70fd706eb22a698b0
https://doi.org/10.29008/etc2017-280
https://doi.org/10.29008/etc2017-280