What is it about?
The document deals with the flow in the exhaust hood of a single flow steam turbine. The effect of the shape of the external case of the hood and the position and dimensions of the internal reinforcements on the energy loss coefficient is evaluated. Using this coefficient, it is possible to determine the gained or lost output in the diffuser and the entire exhaust hood at a known flow and efficiency of the last stage. Flow research in the exhaust hood was performed especially using numeric simulations; some variants were verified experimentally in the aerodynamic wind tunnel.
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Why is it important?
Big amount of measured results is presented. Many shape and flow configurations of the exhaust hood are described and discusses. Alternatives with low pressure loss are selected.
Perspectives
Not so much often list of measured alternatives of influence of internal elements on losses. Important for steam turbine designers and researchers
Ph.D. Michal Hoznedl
Doosan Group
Read the Original
This page is a summary of: Effect of internal elements of the steam turbine exhaust hood on losses, EPJ Web of Conferences, January 2012, EDP Sciences,
DOI: 10.1051/epjconf/20122501024.
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