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International Journal of Turbo & Jet-Engines

Ed. by Sherbaum, Valery / Erenburg, Vladimir


IMPACT FACTOR 2018: 0.863

CiteScore 2018: 0.66

SCImago Journal Rank (SJR) 2018: 0.211
Source Normalized Impact per Paper (SNIP) 2018: 0.625

Online
ISSN
2191-0332
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Volume 36, Issue 3

Issues

Advanced Exergy Analysis of a Turbofan Engine (TFE): Splitting Exergy Destruction into Unavoidable/Avoidable and Endogenous/Exogenous

Ozgur Balli
Published Online: 2017-01-24 | DOI: https://doi.org/10.1515/tjj-2016-0074

Abstract

A conventional and advanced exergy analysis of a turbofan engine is presented in this paper. In this framework, the main exergy parameters of the engine components are introduced while the exergy destruction rates within the engine components are split into endogenous/exogenous and avoidable/unavoidable parts. Also, the mutual interdependencies among the components of the engine and realistic improvement potentials depending on operating conditions are acquired through the analysis. As a result of the study, the exergy efficiency values of the engine are determined to be 25.7 % for actual condition, 27.55 % for unavoidable condition and 30.54 % for theoretical contion, repectively. The system has low improvement potential because the unavoidable exergy destruction rate is 90 %. The relationships between the components are relatively weak since the endogenous exergy destruction is 73 %. Finally, it may be concluded that the low pressure compressor, the high pressure compressor, the fan, the low pressure compressor, the high pressure compressor and the combustion chamber of the engine should be focused on according to the results obtained.

Keywords: aviation; turbofan engine; exegy analysis; advanced exergy analysis

PACS: Air transportation; 89.40.Dd; Irreversible thermodynamics; 05.70.Ln; Reaction turbines; 88.60.kt; Energy conservation in classical mechanics; 45.20.dh; Thermal analysis; 81.70.Pg; Thermodynamic considerations; 88.05.De

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About the article

Received: 2016-12-07

Accepted: 2016-12-28

Published Online: 2017-01-24

Published in Print: 2019-08-27


Any funding source does not used for this paper.


Citation Information: International Journal of Turbo & Jet-Engines, Volume 36, Issue 3, Pages 305–327, ISSN (Online) 2191-0332, ISSN (Print) 0334-0082, DOI: https://doi.org/10.1515/tjj-2016-0074.

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