Experimental Research on the Flow in the Steam Turbine Axial Exhaust Hood

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49193864%3A_____%2F19%3AN0000009" target="_blank" >RIV/49193864:_____/19:N0000009 - isvavai.cz</a>

Result on the web

<a href="https://www.epj-conferences.org/articles/epjconf/abs/2022/13/epjconf_efm2019_01063/epjconf_efm2019_01063.html" target="_blank" >https://www.epj-conferences.org/articles/epjconf/abs/2022/13/epjconf_efm2019_01063/epjconf_efm2019_01063.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/202226901063" target="_blank" >10.1051/epjconf/202226901063</a>

Result language

angličtina

Original language name

Experimental Research on the Flow in the Steam Turbine Axial Exhaust Hood

Original language description

There is the still remaining task to increase the efficiency of power plants and steam turbines. One possibility to increase the thermodynamic efficiency is to apply a suitable exhaust hood. Axial exhaust hoods are mainly designed for small turbines up to 180 MW. They are a very important part of steam turbines and its main purpose is to take away the steam from the last stage outlet to a condenser with minimal loss or even with pressure compression and an increase in the last stage enthalpy drop. This paper concerns experimental measurements on the axial exhaust hood wind tunnel model. The main goal of this paper is to determine how given geometrical and flow parameters affect the resulting pressure recovery coefficient. Main observed parameters are velocity and circumferential angle profiles at the diffuser inlet along with a number, shape and geometrical configuration of internal struts. Several geometrical variants are measured for two types of circumferential angles at the diffuser inlet and for two values of Mach number in the presented work. Multi-hole pneumatic probes and pressure taps are used for flow parameters measurement. The proposed experimental model, along with corresponding CFD (computational fluid dynamics) simulations, will help to optimize the flow parameters in the exhaust hood and allow a decrease in pressure losses in this part.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/TJ01000048" target="_blank" >TJ01000048: Decreasing of Exhaust Loss in Modern Design Steam Turbines</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

EFM19 – Experimental Fluid Mechanics 2019

ISBN

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ISSN

2100-014X

e-ISSN

2100-014X

Number of pages

11

Pages from-to

Article Number 01063

Publisher name

EPJ Web of Conferences 269

Place of publication

neuveden

Event location

Liberec

Event date

Jan 1, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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