Home Journals Articles Updates About
CN
image
收藏切换
Numerical investigation on the wall roughness of a supercritical carbon dioxide axial turbine
收藏切换
PDF
Lei WANG1, 2, Wenhao HUO1, 3, Guoqing TANG1, Guangju DAN1, Dongting SUN1, Yang LI1, Jun WEN1
Thermal Power Generation | 2023, 52(11) : 57 - 66
Less
收藏切换
Thermal Power Generation | 2023, 52(11): 57-66
• Special topic on supercritical carbon dioxide cycle power generation technology •
Numerical investigation on the wall roughness of a supercritical carbon dioxide axial turbine
Full
Lei WANG1, 2, Wenhao HUO1, 3, Guoqing TANG1, Guangju DAN1, Dongting SUN1, Yang LI1, Jun WEN1
Affiliations
  • 1.Chongqing Jiangjin Shipbuilding Industry Co., Ltd., Chongqing 402263, China
  • 2.Key Laboratory of Marine Turbocharger Research, Chongqing Industry and Information Technology, Chongqing 402263, China
  • 3.National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering, Shanghai 201108, China
Published: 2023-11-25 doi: 10.19666/j.rlfd.202302019
Outline
收藏切换

A comparative analysis between simulation and test with roughness is carried out for a supercritical carbon dioxide (S-CO2) axial turbine with different operating conditions, focusing on the roughness impact of the turbine performance. The results show that the numerical calculation method of wall roughness is able to assess the performance of the turbine at different load conditions accurately. Compared with test result, the maximum efficiency error is 1.82 percentage point. Wall roughness degrades the overall performance of the turbine, with a maximum efficiency drop of 2.8 percentage point at Ra1.6 roughness level during the five working condition, and the turbine stage roughness has a more obvious effect on the turbine performance. In addition, the more severe of wall roughness, the greater reduction of turbine efficiency. In non-design operating conditions, the efficiency drops by 11.6 percentage point at Ra6.3 roughness level. The wall roughness exacerbates flow separation of pressure surface, causing greater friction losses and serious affecting of turbine performance. The research can provide technical support for the design and performance simulation of S-CO2 axial turbines.

supercritical carbon dioxide  /  axial turbine  /  wall roughness  /  experiments
Lei WANG, Wenhao HUO, Guoqing TANG, Guangju DAN, Dongting SUN, Yang LI, Jun WEN. Numerical investigation on the wall roughness of a supercritical carbon dioxide axial turbine[J]. Thermal Power Generation, 2023 , 52 (11) : 57 -66 . DOI: 10.19666/j.rlfd.202302019
Funding
Less
  • National Key Research and Development Program of China(2018YFB1501004-4)
Appendix
Less
Year 2023 volume 52 Issue 11
PDF
128
58
Cite this Article
BibTeX
Article Info
doi: 10.19666/j.rlfd.202302019
  • Receive Date：2023-02-12
  • Online Date：2026-01-26
  • Published：2023-11-25
Article Data
Affiliations
History
  • Received：2023-02-12
Funding
National Key Research and Development Program of China(2018YFB1501004-4)
Affiliations
    1.Chongqing Jiangjin Shipbuilding Industry Co., Ltd., Chongqing 402263, China
    2.Key Laboratory of Marine Turbocharger Research, Chongqing Industry and Information Technology, Chongqing 402263, China
    3.National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering, Shanghai 201108, China
References
Share
https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202302019
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House