Study on Flow and Heat Transfer Characteristics and Anti-Clogging Performance of Tree-Like Branching Microchannels

Linqi Shui (), Zhongkai Hu, Hang Song, Zhi Zhai and Jiatao Wang
Additional contact information
Linqi Shui: Key Laboratory of NC Machine Tools and Integrated Manufacturing Equipment of the Education Ministry, Key Laboratory of Manufacturing Equipment of Shaanxi Province, Xi’an University of Technology, Xi’an 710048, China
Zhongkai Hu: Key Laboratory of NC Machine Tools and Integrated Manufacturing Equipment of the Education Ministry, Key Laboratory of Manufacturing Equipment of Shaanxi Province, Xi’an University of Technology, Xi’an 710048, China
Hang Song: Key Laboratory of NC Machine Tools and Integrated Manufacturing Equipment of the Education Ministry, Key Laboratory of Manufacturing Equipment of Shaanxi Province, Xi’an University of Technology, Xi’an 710048, China
Zhi Zhai: School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Jiatao Wang: Key Laboratory of NC Machine Tools and Integrated Manufacturing Equipment of the Education Ministry, Key Laboratory of Manufacturing Equipment of Shaanxi Province, Xi’an University of Technology, Xi’an 710048, China

Energies, 2023, vol. 16, issue 14, 1-22

Abstract: In this paper, a tree-like branching microchannel with bifurcating interconnections is designed for gas turbine blade cooling. A theoretical analysis, experimental study, and numerical simulation of the heat transfer and hydrodynamic characteristics of the tree-like branching microchannel is performed, and the influence of the total number of branching levels m on the anti-clogging performance is also studied. The results indicate that the total heat transfer ratio and pressure drop ratio are closely related to the structur ne parameters. The comprehensive thermal performance increase with an increase in the ratio of L b / L 0 and fractal dimension D. Nu / Nu s , f / f s , and η are increased as m increases from 3 to 5. Furthermore, the tree-like microchannel network exhibits robustness for cooling gas turbine blades. A greater total number of branching levels and a higher Re number are advantageous for enhancing the anti-clogging performance of the tree-like branching microchannel.

Keywords: gas turbine cooling; tree-like branching microchannel; heat transfer characteristics; pressure drop characteristics; anti-clogging performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/16/14/5531/pdf (application/pdf)
https://www.mdpi.com/1996-1073/16/14/5531/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:16:y:2023:i:14:p:5531-:d:1199243

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().