Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Heat Load Development and Heat Map Sensitivity Analysis for Civil Aero-Engines

Version 1 : Received: 14 March 2024 / Approved: 15 March 2024 / Online: 15 March 2024 (08:55:38 CET)

A peer-reviewed article of this Preprint also exists.

Ebrahimi, A.; Jafari, S.; Nikolaidis, T. Heat Load Development and Heat Map Sensitivity Analysis for Civil Aero-Engines. Int. J. Turbomach. Propuls. Power 2024, 9, 25. Ebrahimi, A.; Jafari, S.; Nikolaidis, T. Heat Load Development and Heat Map Sensitivity Analysis for Civil Aero-Engines. Int. J. Turbomach. Propuls. Power 2024, 9, 25.

Abstract

The design complexity of the new generation of civil aero-engines results in higher demands on engines’ components, higher component temperature, higher heat generation, and, finally, critical thermal management issues. This paper will propose a methodological approach to create physics-based models for heat loads developed by sources as well as a systematic sensitivity analysis to identify the effects of design parameters on the thermal behaviour of civil aero-engines. The ranges and levels of heat loads generated by heat sources (e.g., accessory gearbox, bearing, pumps, etc.) and heat absorption capacity of heat sinks (e.g., engine fuel, oil, and air) are discussed systematically. The practical research challenges for thermal management system design and development for the new and next generation of turbofan engines will then be addressed through a sensitivity analysis of the heat load values as well as the heat sinks flow rates. The potential solutions for thermal performance enhancements of propulsion systems will be proposed and discussed accordingly.

Keywords

Thermal Management System; Heat Loads; Aero Engines

Subject

Engineering, Aerospace Engineering

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