Identification of seal dynamic force coefficients for turbine rotor monitoring purposes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F19%3A43956246" target="_blank" >RIV/49777513:23520/19:43956246 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1784/cm.2019.134" target="_blank" >http://dx.doi.org/10.1784/cm.2019.134</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1784/cm.2019.134" target="_blank" >10.1784/cm.2019.134</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Identification of seal dynamic force coefficients for turbine rotor monitoring purposes

Popis výsledku v původním jazyce

Since rotating machines are all around us and provide excellent service, appropriate monitoring and knowledge is necessary for further improvements. Today, the main goal of all turbomachinery vendors is to improve their products performance and reduce the cost. In case of steam turbine, even slight improvement can bring high savings of money. One of the components which has significant influence on the turbomachine efficiency is the labyrinth seal. The increasing rotational speed and power and on the other side decreasing clearance between rotor and stator cause that seal forces excessively affect the rotor stability similarly to bearings. Special test rigs are built to experimentally identify the seal dynamic force coefficients, which are then used for seal design optimization. This paper is focused on identification of seal dynamic force coefficients based on experimental measurement. The experimental test rigs concepts are introduced as well as the identification procedure and methods. In addition, the concept of currently being built test rig with a rotor supported by active magnetic bearing is described in more detail.

Název v anglickém jazyce

Identification of seal dynamic force coefficients for turbine rotor monitoring purposes

Popis výsledku anglicky

Since rotating machines are all around us and provide excellent service, appropriate monitoring and knowledge is necessary for further improvements. Today, the main goal of all turbomachinery vendors is to improve their products performance and reduce the cost. In case of steam turbine, even slight improvement can bring high savings of money. One of the components which has significant influence on the turbomachine efficiency is the labyrinth seal. The increasing rotational speed and power and on the other side decreasing clearance between rotor and stator cause that seal forces excessively affect the rotor stability similarly to bearings. Special test rigs are built to experimentally identify the seal dynamic force coefficients, which are then used for seal design optimization. This paper is focused on identification of seal dynamic force coefficients based on experimental measurement. The experimental test rigs concepts are introduced as well as the identification procedure and methods. In addition, the concept of currently being built test rig with a rotor supported by active magnetic bearing is described in more detail.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

<a href="/cs/project/EF16_026%2F0008389" target="_blank" >EF16_026/0008389: Výzkumná spolupráce pro dosažení vyšší účinnosti a spolehlivosti lopatkových strojů</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Sixteenth International Conference on Condition Monitoring and Asset Management (CM 2019)

ISBN

978-1-5108-8977-4

ISSN

2632-637X

e-ISSN

—

Počet stran výsledku

11

Strana od-do

1-11

Název nakladatele

British Institute of Non-Destructive Testing

Místo vydání

Northampton

Místo konání akce

Glasgow, UK

Datum konání akce

25. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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