<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The paper presents modernisation of the steam turbine stage situated in front of the turbine extraction point, based on a 225 MW turbine LP stage as an example. The modernised design is intended to better control the steam flow in this area. In the presented design a special ring is used to drive the steam leakage flow directly to the heat exchanger. The performed experiments and numerical analyses confirmed measurable exploitation and efficiency advantages of the introduced modernisation. So far, it has been successfully applied in a number of turbines working in inland power plants, but its use can be easily extended, without need for further modification and without advantage loss, to marine turbines, especially those used as main propulsion in sea-going vessels.</p></abstract>

The paper presents modernisation of the steam turbine stage situated in front of the turbine extraction point, based on a 225 MW turbine LP stage as an example. The modernised design is intended to better control the steam flow in this area. In the presented design a special ring is used to drive the steam leakage flow directly to the heat exchanger. The performed experiments and numerical analyses confirmed measurable exploitation and efficiency advantages of the introduced modernisation. So far, it has been successfully applied in a number of turbines working in inland power plants, but its use can be easily extended, without need for further modification and without advantage loss, to marine turbines, especially those used as main propulsion in sea-going vessels.

Steam Turbine Stage Modernisation in Front of the Extraction Point

Institute of Fluid-Flow Machinery, Polish Academy of Sciences

Polish Maritime Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Steam Turbine Stage Modernisation in Front of the Extraction Point"}

The paper presents modernisation of the steam turbine stage situated in front of the turbine extraction point, based on a 225 MW turbine LP stage as an...

Steam Turbine Stage Modernisation in Front of the Extraction Point

Published Online: Jul 07, 2018

Page range: 116 - 122

DOI: https://doi.org/10.2478/pomr-2018-0062

Keywords
turbine stages, leakages, extraction point, axial flow turbines

© 2018 Mariusz Szymaniak, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Steam Turbine Stage Modernisation in Front of the Extraction Point

Published Online: Jul 07, 2018

Page range: 116 - 122

DOI: https://doi.org/10.2478/pomr-2018-0062

Keywordsturbine stages, leakages, extraction point, axial flow turbines

© 2018 Mariusz Szymaniak, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
turbine stages, leakages, extraction point, axial flow turbines