Study on Flow and Heat Transfer Characteristics and Anti-Clogging Performance of Tree-Like Branching Microchannels-Reference-Cited by-同舟云学术

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

Published:2023-07-21 Issue:14 Volume:16 Page:5531
ISSN:1996-1073
Container-title:Energies
language:en
Short-container-title:Energies

Author:

Shui Linqi¹,Hu Zhongkai¹,Song Hang¹,Zhai Zhi²^ORCID,Wang Jiatao¹

Affiliation:

1. 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

2. School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China

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 Lb/L0 and fractal dimension D. Nu/Nus, f/fs, 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.

Funder

Natural Science Basic Research Program of Shaanxi Province

Beilin District Science and Technology Planning Project

Innovation and Entrepreneurship Training Program for College Students

Publisher

MDPI AG

Subject

Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction

Link

https://www.mdpi.com/1996-1073/16/14/5531/pdf

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