Influence of geometric effects on the aspect ratio optimization of axial turbine bladings

D. Rist

doi:10.1115/78-GT-173

Influence of geometric effects on the aspect ratio optimization of axial turbine bladings

D. Rist

Chair of Turbomachinery and Flight Propulsion

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

In order to illustrate optimization possibilities, the cooled axial turbine stage has been investigated regarding aerothermodynamics. Aims of the study are: (a) to estimate the range of the aspect ratio in which the aerothermodynamic efficiency, under comparable conditions, is not less than 0.2 percent under the best value in order to acquire tolerances for the best possible blading design when considering other design and aspects; (b) to acquire the relationship of the turbine loss coefficients and efficiencies to the absolute size of the flow channels, i.e. (also) to the hot gas flowrate. This is important for fair comparison of smaller and larger machines as well as for realistic judgments and prognosis pertaining especially to small units.

Original language	English
Title of host publication	General
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791879726
DOIs	https://doi.org/10.1115/78-GT-173
State	Published - 1978
Event	ASME 1978 International Gas Turbine Conference and Products Show, GT 1978 - London, United Kingdom Duration: 9 Apr 1978 → 13 Apr 1978

Publication series

Name	Proceedings of the ASME Turbo Expo
Volume	1B-1978

Conference

Conference	ASME 1978 International Gas Turbine Conference and Products Show, GT 1978
Country/Territory	United Kingdom
City	London
Period	9/04/78 → 13/04/78

Access to Document

10.1115/78-GT-173

Cite this

@inproceedings{a83a831caa244e68ba0f8ef5f009772e,

title = "Influence of geometric effects on the aspect ratio optimization of axial turbine bladings",

abstract = "In order to illustrate optimization possibilities, the cooled axial turbine stage has been investigated regarding aerothermodynamics. Aims of the study are: (a) to estimate the range of the aspect ratio in which the aerothermodynamic efficiency, under comparable conditions, is not less than 0.2 percent under the best value in order to acquire tolerances for the best possible blading design when considering other design and aspects; (b) to acquire the relationship of the turbine loss coefficients and efficiencies to the absolute size of the flow channels, i.e. (also) to the hot gas flowrate. This is important for fair comparison of smaller and larger machines as well as for realistic judgments and prognosis pertaining especially to small units.",

author = "D. Rist",

note = "Publisher Copyright: Copyright {\textcopyright} 1978 by ASME.; ASME 1978 International Gas Turbine Conference and Products Show, GT 1978 ; Conference date: 09-04-1978 Through 13-04-1978",

year = "1978",

doi = "10.1115/78-GT-173",

language = "English",

series = "Proceedings of the ASME Turbo Expo",

publisher = "American Society of Mechanical Engineers (ASME)",

booktitle = "General",

}

TY - GEN

T1 - Influence of geometric effects on the aspect ratio optimization of axial turbine bladings

AU - Rist, D.

PY - 1978

Y1 - 1978

N2 - In order to illustrate optimization possibilities, the cooled axial turbine stage has been investigated regarding aerothermodynamics. Aims of the study are: (a) to estimate the range of the aspect ratio in which the aerothermodynamic efficiency, under comparable conditions, is not less than 0.2 percent under the best value in order to acquire tolerances for the best possible blading design when considering other design and aspects; (b) to acquire the relationship of the turbine loss coefficients and efficiencies to the absolute size of the flow channels, i.e. (also) to the hot gas flowrate. This is important for fair comparison of smaller and larger machines as well as for realistic judgments and prognosis pertaining especially to small units.

AB - In order to illustrate optimization possibilities, the cooled axial turbine stage has been investigated regarding aerothermodynamics. Aims of the study are: (a) to estimate the range of the aspect ratio in which the aerothermodynamic efficiency, under comparable conditions, is not less than 0.2 percent under the best value in order to acquire tolerances for the best possible blading design when considering other design and aspects; (b) to acquire the relationship of the turbine loss coefficients and efficiencies to the absolute size of the flow channels, i.e. (also) to the hot gas flowrate. This is important for fair comparison of smaller and larger machines as well as for realistic judgments and prognosis pertaining especially to small units.

UR - http://www.scopus.com/inward/record.url?scp=84953923474&partnerID=8YFLogxK

U2 - 10.1115/78-GT-173

DO - 10.1115/78-GT-173

M3 - Conference contribution

AN - SCOPUS:84953923474

T3 - Proceedings of the ASME Turbo Expo

BT - General

PB - American Society of Mechanical Engineers (ASME)

T2 - ASME 1978 International Gas Turbine Conference and Products Show, GT 1978

Y2 - 9 April 1978 through 13 April 1978

ER -

Influence of geometric effects on the aspect ratio optimization of axial turbine bladings

Abstract

Publication series

Conference

Access to Document

Other files and links

Fingerprint

Cite this