Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade

The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration...
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Autor*in:	A. Q. Lin [verfasserIn] X. Y. Chang [verfasserIn] L. H. Cao [verfasserIn] H. Zhang [verfasserIn] L. X. Sun [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade.

Übergeordnetes Werk:	In: Journal of Applied Fluid Mechanics - Isfahan University of Technology, 2019, 12(2019), 6, Seite 1837-1845
Übergeordnetes Werk:	volume:12 ; year:2019 ; number:6 ; pages:1837-1845

Links:	Link aufrufen Link aufrufen Journal toc

Katalog-ID:	DOAJ043015581

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520			\|a The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage.
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allfields	(DE-627)DOAJ043015581 (DE-599)DOAJ452e0926293040f7ac9c54663488b0e7 DE-627 ger DE-627 rakwb eng TJ1-1570 A. Q. Lin verfasserin aut Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage. Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. Mechanical engineering and machinery X. Y. Chang verfasserin aut L. H. Cao verfasserin aut H. Zhang verfasserin aut L. X. Sun verfasserin aut In Journal of Applied Fluid Mechanics Isfahan University of Technology, 2019 12(2019), 6, Seite 1837-1845 (DE-627)559433700 (DE-600)2413622-0 17353645 nnns volume:12 year:2019 number:6 pages:1837-1845 https://doaj.org/article/452e0926293040f7ac9c54663488b0e7 kostenfrei http://jafmonline.net/JournalArchive/download?file_ID=50020&issue_ID=1003 kostenfrei https://doaj.org/toc/1735-3572 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2019 6 1837-1845
spelling	(DE-627)DOAJ043015581 (DE-599)DOAJ452e0926293040f7ac9c54663488b0e7 DE-627 ger DE-627 rakwb eng TJ1-1570 A. Q. Lin verfasserin aut Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage. Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. Mechanical engineering and machinery X. Y. Chang verfasserin aut L. H. Cao verfasserin aut H. Zhang verfasserin aut L. X. Sun verfasserin aut In Journal of Applied Fluid Mechanics Isfahan University of Technology, 2019 12(2019), 6, Seite 1837-1845 (DE-627)559433700 (DE-600)2413622-0 17353645 nnns volume:12 year:2019 number:6 pages:1837-1845 https://doaj.org/article/452e0926293040f7ac9c54663488b0e7 kostenfrei http://jafmonline.net/JournalArchive/download?file_ID=50020&issue_ID=1003 kostenfrei https://doaj.org/toc/1735-3572 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2019 6 1837-1845
allfields_unstemmed	(DE-627)DOAJ043015581 (DE-599)DOAJ452e0926293040f7ac9c54663488b0e7 DE-627 ger DE-627 rakwb eng TJ1-1570 A. Q. Lin verfasserin aut Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage. Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. Mechanical engineering and machinery X. Y. Chang verfasserin aut L. H. Cao verfasserin aut H. Zhang verfasserin aut L. X. Sun verfasserin aut In Journal of Applied Fluid Mechanics Isfahan University of Technology, 2019 12(2019), 6, Seite 1837-1845 (DE-627)559433700 (DE-600)2413622-0 17353645 nnns volume:12 year:2019 number:6 pages:1837-1845 https://doaj.org/article/452e0926293040f7ac9c54663488b0e7 kostenfrei http://jafmonline.net/JournalArchive/download?file_ID=50020&issue_ID=1003 kostenfrei https://doaj.org/toc/1735-3572 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2019 6 1837-1845
allfieldsGer	(DE-627)DOAJ043015581 (DE-599)DOAJ452e0926293040f7ac9c54663488b0e7 DE-627 ger DE-627 rakwb eng TJ1-1570 A. Q. Lin verfasserin aut Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage. Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. Mechanical engineering and machinery X. Y. Chang verfasserin aut L. H. Cao verfasserin aut H. Zhang verfasserin aut L. X. Sun verfasserin aut In Journal of Applied Fluid Mechanics Isfahan University of Technology, 2019 12(2019), 6, Seite 1837-1845 (DE-627)559433700 (DE-600)2413622-0 17353645 nnns volume:12 year:2019 number:6 pages:1837-1845 https://doaj.org/article/452e0926293040f7ac9c54663488b0e7 kostenfrei http://jafmonline.net/JournalArchive/download?file_ID=50020&issue_ID=1003 kostenfrei https://doaj.org/toc/1735-3572 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2019 6 1837-1845
allfieldsSound	(DE-627)DOAJ043015581 (DE-599)DOAJ452e0926293040f7ac9c54663488b0e7 DE-627 ger DE-627 rakwb eng TJ1-1570 A. Q. Lin verfasserin aut Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage. Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. Mechanical engineering and machinery X. Y. Chang verfasserin aut L. H. Cao verfasserin aut H. Zhang verfasserin aut L. X. Sun verfasserin aut In Journal of Applied Fluid Mechanics Isfahan University of Technology, 2019 12(2019), 6, Seite 1837-1845 (DE-627)559433700 (DE-600)2413622-0 17353645 nnns volume:12 year:2019 number:6 pages:1837-1845 https://doaj.org/article/452e0926293040f7ac9c54663488b0e7 kostenfrei http://jafmonline.net/JournalArchive/download?file_ID=50020&issue_ID=1003 kostenfrei https://doaj.org/toc/1735-3572 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2019 6 1837-1845
language	English
source	In Journal of Applied Fluid Mechanics 12(2019), 6, Seite 1837-1845 volume:12 year:2019 number:6 pages:1837-1845
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topic_facet	Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. Mechanical engineering and machinery
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authorswithroles_txt_mv	A. Q. Lin @@aut@@ X. Y. Chang @@aut@@ L. H. Cao @@aut@@ H. Zhang @@aut@@ L. X. Sun @@aut@@
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callnumber-first	T - Technology
author	A. Q. Lin
spellingShingle	A. Q. Lin misc TJ1-1570 misc Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. misc Mechanical engineering and machinery Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade
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topic_title	TJ1-1570 Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade
topic	misc TJ1-1570 misc Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. misc Mechanical engineering and machinery
topic_unstemmed	misc TJ1-1570 misc Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. misc Mechanical engineering and machinery
topic_browse	misc TJ1-1570 misc Exhaust passage; Wet steam; Aerodynamic performance; Last stage blade. misc Mechanical engineering and machinery
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title	Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade
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title_full	Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade
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title_sort	effect of wet steam on aerodynamic performance of low-pressure exhaust passage with last stage blade
callnumber	TJ1-1570
title_auth	Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade
abstract	The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage.
abstractGer	The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage.
abstract_unstemmed	The condensation of wet steam has important effects on the behavior of the flow field. To evaluate the aerodynamic performance of exhaust passage influenced by wet steam phase change condensation, a numerical investigation was conducted. Taking a 600 MW steam turbine as an example with consideration of the wet steam from the last stage blade and the steam exhaust of the BFPT (boiler feed water pump turbine), the governing equations of wet steam two-phase flow were adopted by the Eulerian-Eulerian approach. Results show that the wetness in the stator domain increases gradually while the wetness in the rotor domain varies little on the pressure surface and is in small increment on the suction surface. The velocity uniformity can be improved at condenser throat outlet as the mass flow or wetness increases. Moreover, the trend to improve the aerodynamic performance of exhaust passage benefits from the improvement of wetness at the last stage blade inlet. Conversely, with the increment of wetness at the BFPT inlet, the static pressure recovery coefficient reduces by 5.8% and the total pressure loss coefficient increases by 2.4%, resulting in a reduction of aerodynamic performance of exhaust passage.
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title_short	Effect of Wet Steam on Aerodynamic Performance of Low-Pressure Exhaust Passage with Last Stage Blade
url	https://doaj.org/article/452e0926293040f7ac9c54663488b0e7 http://jafmonline.net/JournalArchive/download?file_ID=50020&issue_ID=1003 https://doaj.org/toc/1735-3572
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