Akronym
NAKULEK
Projekt Titel
Design, construction and testing of a PCM-Evaporator-Composite for natural circulation cooling of aircraft systems
Förderkennzeichen
20Q1519C
Funding code
945.02-613
Startdatum
July 1, 2016
Enddatum
June 30, 2020
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Institut
Principal Investigator
Co-Workers
Primary goals of the project NAKULEK (Natural Circulation Cooling for Power Electronics) are the realization of a stable two-phase natural circulation cooling system for power electronics in commercial aircrafts and the integration of a latent heat storage in such a system. Due to an increasing number and power density of electrical components the dissipated heat of the power electronics increases. As a result, conventional air cooling is no longer sufficient.
Active liquid cooling systems with pumps can lead to an increased system weight. One way to reduce weight is to use a thermosyphon, where the driving forces of natural circulation are based on density gradients, so no pump is required. This technology is supplemented by a latent heat storage (Phase Change Material) in the area of the evaporator to ensure operation at dynamic processes. Furthermore, the influence of a boiling crisis and various refrigerants are tested in this project.
Active liquid cooling systems with pumps can lead to an increased system weight. One way to reduce weight is to use a thermosyphon, where the driving forces of natural circulation are based on density gradients, so no pump is required. This technology is supplemented by a latent heat storage (Phase Change Material) in the area of the evaporator to ensure operation at dynamic processes. Furthermore, the influence of a boiling crisis and various refrigerants are tested in this project.