THERMAL SCIENCE

International Scientific Journal

Min Zuo

,

Zhen-Zong He

,

Shi-Jie Sun

,

Jun-Kui Mao

,

Chuan-Hui Dong

SIMULATION OF FLOW AND HEAT TRANSFER CHARACTERISTICS OF LAMINATED TURBINE BLADES WITH KEROSENE COOLING CHANNELS

ABSTRACT
An air-kerosene thermal mass coupled turbine blade with kerosene micro-channels added to the traditional laminated structure turbine blade is proposed, and numerical simulations are carried out. The enhanced heat transfer mechanism of the air-kerosene thermal mass coupled turbine blade is studied, and the influence of different kerosene temperatures, blowing ratios, and solid thermal conductivity on the heat transfer of the laminated turbine blades is analyzed. The results show that adding kerosene micro-channels can significantly reduce the blade temperature and change the cooling gas heat transfer direction inside the laminate cooling structure. Compared with the traditional laminate cooling structure, adding kerosene micro-channels can significantly improve the heat transfer performance of the blades, and the integrated cooling efficiency increases by 31.7%. Moreover, when the kerosene temperature decreases from 400-300 K, the cooling efficiency increases by 3.9%. Similar conclusions can be obtained by studying the increases in the blowing ratio and the solid thermal conductivity, respectively.
KEYWORDS
turbine blade, Aviation kerosene, Thermal mass coupling, Flow Heat Transfer
PAPER SUBMITTED: 2023-01-15
PAPER REVISED: 2023-02-23
PAPER ACCEPTED: 2023-02-27
PUBLISHED ONLINE: 2023-04-22
DOI REFERENCE: https://doi.org/10.2298/TSCI230115082Z
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 1, PAGES [13 - 24]
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Simulation of flow and heat transfer characteristics of laminated turbine blades with kerosene cooling channels

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence