Title : ( On the performance of a cascade of improved turbine nozzle blade in nucleating steam Part1: Surface pressure distribution )
Authors: F.Bakhtar , Z.A.Mamat , O.C.Jadayal , Mohammad Reza Mahpeykar ,
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Abstract
This article is the first of a set and describes the results of surface pressure measurements and flow visualizations in a cascade of improved steam turbine nozzle blade profiles. In the course of expansion of steam in turbines, the state path crosses the saturation line and the fluid nucleates to become a two-phase mixture. Formation and subsequent behaviour of the liquid lowers the performance of turbine wet stages. Turbine two-phase flow conditions can be reproduced under blow-down conditions for systematic study satisfactorily. Following earlier studies of some typical profiles the performance of a new design of blades is presented. A substantially improved aerodynamic performance has been achieved by the new profile.
Keywords
, steam turbine , cascades of blades , two, phase flow
@article{paperid:1009475,
author = {F.Bakhtar and Z.A.Mamat and O.C.Jadayal and Mahpeykar, Mohammad Reza},
title = {On the performance of a cascade of improved turbine nozzle blade in nucleating steam Part1: Surface pressure distribution},
journal = {Proceedings of the Institution of Mechanical Engineers - Part C},
year = {2009},
volume = {223},
month = {January},
issn = {0954-4062},
pages = {1903--1914},
numpages = {11},
keywords = {steam turbine - cascades of blades - two-phase flow},
}
%0 Journal Article
%T On the performance of a cascade of improved turbine nozzle blade in nucleating steam Part1: Surface pressure distribution
%A F.Bakhtar
%A Z.A.Mamat
%A O.C.Jadayal
%A Mahpeykar, Mohammad Reza
%J Proceedings of the Institution of Mechanical Engineers - Part C
%@ 0954-4062
%D 2009
