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On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis

This article is the last of a set and describes the analysis of the performance of an improved steam turbine nozzle blade profile. In the course of expansion of steam in turbines, the state path crosses the saturation line, the fluid nucleates to become wet, and the succeeding stages have to operate...

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Main Authors:	Bakhtar F., Zamri M.Y.
Other Authors:	7003829091
Format:	Conference paper
Published:	2023
Subjects:	Blow-down tunnel Cascades of blades Non-equilibrium flow Nucleating steam Steam turbines Time-marching Two-phase flow Wet steam Aerodynamics Design Marine engines Multiphase flow Nozzles Steam Turbines Non-equilibrium flows Time marching Turbomachine blades
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id	my.uniten.dspace-30522
record_format	dspace
spelling	my.uniten.dspace-305222023-12-29T15:48:52Z On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis Bakhtar F. Zamri M.Y. 7003829091 7003976733 Blow-down tunnel Cascades of blades Non-equilibrium flow Nucleating steam Steam turbines Time-marching Two-phase flow Wet steam Aerodynamics Design Marine engines Multiphase flow Nozzles Steam Steam turbines Turbines Blow-down tunnel Non-equilibrium flows Nucleating steam Time marching Wet steam Turbomachine blades This article is the last of a set and describes the analysis of the performance of an improved steam turbine nozzle blade profile. In the course of expansion of steam in turbines, the state path crosses the saturation line, the fluid nucleates to become wet, and the succeeding stages have to operate on a two-phase mixture. The formation and subsequent behaviour of the liquid phase lowers the performance of turbine wet stages. Following earlier studies of typical profiles in nucleating steam, the performance of a new design of blades is examined. A substantially improved aerodynamic performance is achieved by the new design. The effect of heat release by condensation in increasing the aerodynamic losses is not intrinsic to the system and can be avoided by design but the losses resulting from the internal heat transfer are intrinsic and considerable. Final 2023-12-29T07:48:52Z 2023-12-29T07:48:52Z 2011 Conference paper 10.1177/0954406211400346 2-s2.0-79960434474 https://www.scopus.com/inward/record.uri?eid=2-s2.0-79960434474&doi=10.1177%2f0954406211400346&partnerID=40&md5=ee0fc6be3bc41004932ae7580130a48b https://irepository.uniten.edu.my/handle/123456789/30522 225 7 1649 1671 Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Blow-down tunnel Cascades of blades Non-equilibrium flow Nucleating steam Steam turbines Time-marching Two-phase flow Wet steam Aerodynamics Design Marine engines Multiphase flow Nozzles Steam Steam turbines Turbines Blow-down tunnel Non-equilibrium flows Nucleating steam Time marching Wet steam Turbomachine blades
spellingShingle	Blow-down tunnel Cascades of blades Non-equilibrium flow Nucleating steam Steam turbines Time-marching Two-phase flow Wet steam Aerodynamics Design Marine engines Multiphase flow Nozzles Steam Steam turbines Turbines Blow-down tunnel Non-equilibrium flows Nucleating steam Time marching Wet steam Turbomachine blades Bakhtar F. Zamri M.Y. On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis
description	This article is the last of a set and describes the analysis of the performance of an improved steam turbine nozzle blade profile. In the course of expansion of steam in turbines, the state path crosses the saturation line, the fluid nucleates to become wet, and the succeeding stages have to operate on a two-phase mixture. The formation and subsequent behaviour of the liquid phase lowers the performance of turbine wet stages. Following earlier studies of typical profiles in nucleating steam, the performance of a new design of blades is examined. A substantially improved aerodynamic performance is achieved by the new design. The effect of heat release by condensation in increasing the aerodynamic losses is not intrinsic to the system and can be avoided by design but the losses resulting from the internal heat transfer are intrinsic and considerable.
author2	7003829091
author_facet	7003829091 Bakhtar F. Zamri M.Y.
format	Conference paper
author	Bakhtar F. Zamri M.Y.
author_sort	Bakhtar F.
title	On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis
title_short	On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis
title_full	On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis
title_fullStr	On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis
title_full_unstemmed	On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis
title_sort	on the performance of a cascade of improved turbine nozzle blades in nucleating steam - part 3: theoretical analysis
publishDate	2023
_version_	1806427375724920832
score	13.222552

On the performance of a cascade of improved turbine nozzle blades in nucleating steam - Part 3: Theoretical analysis

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