Investigation of Fouling Layer Growth in Compact Heat Exchangers for Electrified Aviation

Kurzfassung

Hydrogen-electric propulsion systems, essential for reducing emissions in aviation, demand innovative thermal management solutions that can efficiently handle the high thermal loads of fuel cell electric power generation. Additionally, reducing waste from maintenance operations is key to minimizing environmental impact. One of the primary failure mechanisms that can lead to damage and degradation of heat exchangers, which are necessary components for the waste heat dissipation, is the accumulation of unwanted materials on their surfaces, known as fouling. This study explores the impact of fouling on compact heat exchangers, a critical factor affecting their lifespan and efficiency. The work aims to develop a comprehensive fouling prediction framework, starting with a preliminary analytical study that will inform future CFD investigations. By examining key parameters influencing particle deposition, guidelines are established for designing more efficient and fouling-resistant heat exchangers. This study lays the groundwork for future research, enabling the development of optimized heat exchangers that support sustainable aviation technologies