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Full-scale experimental investigations on different operating modes of the avionics ventilation system

: Pschirer, Marie; Kirmayr, Thomas; Grün, Gunnar

Estorff, O. von (Hrsg.) ; TU Hamburg-Harburg; Institut National des Sciences Appliquées -INSA-, Toulouse:
4th International Workshop on Aircraft System Technologies. Proceedings : April 23 - 24, 2013, Hamburg, Germany
Aachen: Shaker, 2013 (Berichte aus der Luft- und Raumfahrttechnik)
ISBN: 978-3-8440-1850-9
International Workshop on Aircraft System Technologies (AST) <4, 2013, Hamburg>
Conference Paper
Fraunhofer IBP ()

To investigate cooling strategies of the avionics ventilation system full-scale experiments have been performed in the Fraunhofer IBPs flight test facility. A test infrastructure of the avionic compartment equivalent to the racks, blowing and extraction system of a long-range aircraft architecture has been integrated into a wide-body aircraft segment within the low pressure vessel of the flight test facility. With this setup experiments on cooling performance of the system at different ground and flight conditions have been performed. Failure cases were simulated, such as total loss of blowing, loss of extraction or total loss of avionics ventilation system.