Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 1
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

This paper analyses the influence of three different ring-type inlet duct geometries on the performance of a small 1 MW backpressure steam turbine. It examines the efficiency and pressure drop of seven turbine variants, including four spiral inlet geometries and three stages with a mass flow rate around 30 t/h. A one-pipe and two-pipe inlets are analysed from aerodynamical point of view, taking into account stator and rotor blades in three stages without the outlet. An outlet is added to the best variant. Also analysed is the occurrence of vortices in the inlets of the studied variants 1–7 as well as the efficiency, drop pressure, turbine power and mass flow. Finally, the best inlet for a 1 MW steam turbine is suggested.
Go to article

Bibliography

[1] Bellucci J., Rubechin F., Arnone A.: Modeling partial admission in control stages of small steam turbines with CFD. In: Proc. ASME Turbo Expo, June 11-15 2018 Oslo, GT2018-76528, 2018.
[2] Lampart P., Szymaniak M., Rzadkowski R.: Unsteady load of partial admission control stage rotor of a large power steam turbine. In: Proc. ASME Turbo EXPO 2004, Power for Land, Sea and Air, June 14–17, 2004, Vienna, ASME GT-2004- 53886, 2004.
[3] Van den Braembussche R.A.: Flow and loss mechanisms in volutes of centrifugal pumps. Educational Notes. In: Design and Analysis of High Speed Pumps (12-1–12- 26). Educational Notes RTO-EN-AVT-143, Neuilly-sur-Seine, RTO, 2006 (available from: http://www.rto.nato.int/abstracts.asp).
[4] Drexler C.: Strömungsvorg ange und Verlustanteile in ungleichformig beaufschlagten Turbinenstufen. PhD thesis, RWTH Aachen University, Aachen 1996. Computational fluid dynamics analysis of 1 MW steam turbine inlet geometries 55
[5] Traupel W.: Thermische Turbomaschinen (4th Edn.). Springer, 2001.
[6] Kovats A.: Effect of non-rotating passages on performance of centrifugal pumps and subsonic compressors. In: Proc. Winter Annual Meeting, New York 1979.
[7] Lüdtke K.: Centrifugal process compressors – radial vs. tangential suction nozzles. In: ASME Paper 85-GT-80, 1985.
[8] Sievert R.: Analyse der Einflussparameter auf die Strömung im Eintritt von Niederdruck-Dampfturbinen. PhD thesis, Ruhr-Universität Bochum, Bochum 2006 (in German).
[9] Maier W.: Inlet casing for a turbine. US Patent US5927943A, 1999.
[10] Škach R., Uher J.: Spiral Inlets for Steam Turbines. AIP Conf. Proc. 1889, 020038, 2017.
[11] Hecker S., Rohe A., Stoff H.: Steam turbine inlet geometry from a structural and fluid dynamics point of view. In: Proc. ASME Turbo Expo 2012, GT2012-68678, 2012, 487–495.
[12] Gao K., Wang C., Xie Y., Zhang D.: Effects of inlet chamber structure of the control stage on the unsteady aerodynamic force. In: Proc. ASME Turbo Expo, Oslo, June 11–15 2018, GT2018-76632, 2018.
[13] Engelmann D., Schram A., Polklas T., Mailch P.: Losses of steam admission in industrial steam turbines depending on geometrical parameters. In: Proc. ASME Turbo Expo, Dusseldorf – Oslo, June 16-20 2014, GT2014-25172, 2014.
[14] Dejch M.,E., Filippov G.A., Lazarev L.Ja.: Collection of Profiles for Axial Turbine Cascades. Machinostroienie, Moscow 1965 (in Russian).
[15] Kietlinski K., Czerwinski P.: Retrofit of 18K370 steam turbine on the units 7–12 at Belchatow Power Plant. Arch. Energ. XLI(2011), 3-4, 77–96.
[16] Ansys CFX, Release 18.2.
[17] Ansys Meshing, Release 18.2
[18] Ansys TurboGrid, Release 18.2
[19] Ansys DesignModeller, Release 18.2
[20] Ansys CFX, Release 18.2, CFX documentation. Ansys, Inc.
Go to article

Authors and Affiliations

Arkadiusz Koprowski
1
Romuald Rzadkowski
1 2

  1. Institute of Fluid Flow Machinery Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland
  2. Air Force Institute of Technology, Ksiecia Bolesława 6, 01-494 Warsaw, Poland

This page uses 'cookies'. Learn more