Effect of Manufacturing Processes on Blade Throat Size and Position in a Steam Turbine Diaphragm

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F22%3A43968573" target="_blank" >RIV/49777513:23210/22:43968573 - isvavai.cz</a>

Výsledek na webu

<a href="http://jmacheng.not.pl/Effect-of-Manufacturing-Processes-on-Blade-Throat-Size-and-Position-in-a-Steam-Turbine,150830,0,2.html" target="_blank" >http://jmacheng.not.pl/Effect-of-Manufacturing-Processes-on-Blade-Throat-Size-and-Position-in-a-Steam-Turbine,150830,0,2.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.36897/jme/150830" target="_blank" >10.36897/jme/150830</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Manufacturing Processes on Blade Throat Size and Position in a Steam Turbine Diaphragm

Popis výsledku v původním jazyce

Despite a sustainable energy future, steam turbines are requisite for the reliability and security of the electric power supply in many countries. Accurate and precise manufacturing of the steam path is crucial to turbine efficiency. Before entering the rotor blades, the steam must be correctly guided using stationary blading in a diaphragm. Steam turbine diaphragms are complicated components to manufacture, and welding is the most common fabrication method. A case study presented in this paper employs data from a 3D optical scanner for a geometric deviation analysis of the upper half of the diaphragm at two production steps, after complete welding and after final machining. Unrolled cylinder cross-sections at different diameters are used to evaluate the blade throat sizes and positions compared to the nominal geometry. The results indicate significant geometric changes between the two fabrication steps, and several suggestions are put forward for targeted future work.

Název v anglickém jazyce

Effect of Manufacturing Processes on Blade Throat Size and Position in a Steam Turbine Diaphragm

Popis výsledku anglicky

Despite a sustainable energy future, steam turbines are requisite for the reliability and security of the electric power supply in many countries. Accurate and precise manufacturing of the steam path is crucial to turbine efficiency. Before entering the rotor blades, the steam must be correctly guided using stationary blading in a diaphragm. Steam turbine diaphragms are complicated components to manufacture, and welding is the most common fabrication method. A case study presented in this paper employs data from a 3D optical scanner for a geometric deviation analysis of the upper half of the diaphragm at two production steps, after complete welding and after final machining. Unrolled cylinder cross-sections at different diameters are used to evaluate the blade throat sizes and positions compared to the nominal geometry. The results indicate significant geometric changes between the two fabrication steps, and several suggestions are put forward for targeted future work.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

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

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Machine Engineering

ISSN

1895-7595

e-ISSN

2391-8071

Svazek periodika

22

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

13

Strana od-do

148-160

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85138629222