Julie FRANK, Duncan BORMAN, Amirul KHAN, Evaldas GREICIUNAS, Jon SUMMERS

DOI Number: 10.82241/ceas-hisst-2024-313

Conference number: HiSST-2024-313

One of the limiting factors for the development of future aircraft is the thermal management system. Phase Change Materials (PCM) Heat Exchanger have been identified as a possible solution to this problem, where the additional heat exchanger would help in reducing peaks in the heat load, extending the lifetime of current technologies. There is a current lack in low computational cost models suited for the initial sizing phase of PCM-Compact Heat Exchanger. An effectiveness-NTU model has been developed that tracks the melting/solidification front of the PCM by using a linear approximation of the Stefan Condition. Based on an initial loading profile characteristic of aerospace applications, the model was applied to a PCM-Compact Heat Exchanger. Current results are showing good agreement with CFD results and achieve a clear reduction in the simulation time from multiple hours to seconds per loading case, when comparing the model to CFD simulations.

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In Categories: 1.Events, HiSST 2024, Thermal and Energy Management
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