Development of an innovative cooling concept for turbofan engines

Abstract: This paper is submitted in support of a candidature for the Double Degree in Vehicle Engineering with a specialization in Aerospace between KTH Royal Institute of Technology, Sweden, and Ecole Centrale Lyon, France. The present report emphasizes a research project for current or next generation turbofan engines used in civil aviation, and especially its equipment integration from a thermal management point of view. The cooling and ventilation of such equipment in the core compartment is especially harsh. Its optimization had been considered through a complete analysis described in an exhaustive paper which is only available internally at Airbus or for thesis examiners because of confidentiality issues. Considering only Two-Phase flow heat transfer, the heat pipes are deeply explained in order to familiarize the reader. An achievable heat pipe is modelled help to a 1D simulation software called LMS Imagine.Lab AMESim (Siemens PLM). The modelling is illustrated and correlated with experimental values for commercial heat pipes. Finally two other two-phase flow heat transfer systems are duly noted, with a short description of the theory that led to model adaptation and GUIs development using Matlab.