Performance analysis of a novel compact air-air heat exchanger for aircraft gas turbine engine using LMTD method

Li, Haiwang, Huang, Haoran, Xu, Guoqiang, Wen, Jie and Wu, Hongwei (2017) Performance analysis of a novel compact air-air heat exchanger for aircraft gas turbine engine using LMTD method. Applied Thermal Engineering, 116. pp. 445-455. ISSN 1359-4311

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Official URL: http://dx.doi.org/10.1016/j.applthermaleng.2017.01...

Abstract

In this article, a new compact cross-flow air-air heat exchanger is designed using logarithmic mean temperature difference method (LMTD) and its performance is experimentally investigated with optimized structure. The designed heat exchanger weights 2.04 kg which is able to cool the high temperature air from high pressure compressor in aero engine for more than 200 K (in certain cases) in a very limited space by using the coolant air from bypass duct. A comparison between calculated results and the obtained experimental data is presented and discussed. Results show good agreement between the current calculations and experimental data. It also reveals that the present design method is proved to be relatively accurate in predicting the performance of the compact air-air heat exchanger for all the investigated structures. What’s more, a new empirical correlation for the outside heat transfer coefficient is established using Wilson plot method in the current study. The correlation will be helpful for the researchers to design new air-air heat exchangers.

Item Type: Article
Subjects: H300 Mechanical Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 22 Feb 2017 12:48
Last Modified: 22 Feb 2017 12:48
URI: http://nrl.northumbria.ac.uk/id/eprint/29798

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