Off-design flow analysis of low-pressure steam turbines

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Petrovic, M.; Riess, W.: Off-design flow analysis of low-pressure steam turbines. In: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 211 (1997), Nr. 3, S. 215-224. DOI: https://doi.org/10.1243/0957650971537123

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Sum total of downloads: 376




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Abstract: 
In this paper, a method for flow calculation in large steam turbines is presented. The method is based on the through-flow theory and the finite element procedure. It includes some extensions and improvements in the form of a new combination of loss correlation, radial distribution of losses and spanwise mixing, a new procedure for density calculation and an extension to encompass reverse meridional flow. The method is applied to the LP (low-pressure) part of a 165 MW steam turbine for which the flow field and performance over a wide range of mass flow and input pressure are calculated. The flow at far off-design loads, at which flow reversal behind the last stage occurs, and the last stage changes to ventilation are especially analysed. The comparison of numerical results with experimental data shows good correspondence. © IMechE 1997.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Document Type: article
Publishing status: publishedVersion
Issue Date: 1997
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
total perc.
1 image of flag of Germany Germany 59 15.69%
2 image of flag of United States United States 41 10.90%
3 image of flag of India India 32 8.51%
4 image of flag of Indonesia Indonesia 24 6.38%
5 image of flag of Brazil Brazil 15 3.99%
6 image of flag of Russian Federation Russian Federation 14 3.72%
7 image of flag of Italy Italy 12 3.19%
8 image of flag of Latvia Latvia 11 2.93%
9 image of flag of Japan Japan 11 2.93%
10 image of flag of United Kingdom United Kingdom 11 2.93%
    other countries 146 38.83%

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