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In this experimental study a Capillary Jet Loop architecture (CJL-dcc) is proposed to transport the heat from a hot liquid (oil) as heat source to a composite material as coolant surface that is part of the nacelle in a turboprop transport aircraft (as used for Regional and Business Aviation). The application has dual usage, firstly ice protection in cold conditions and cooling of the oil in all conditions. The reduced scale demonstrator tested is a combination of a single capillary loop with a two-phase transport ring (TPR). The ring provides the liquid to the capillary structure and the capillary evaporator induces vapor jets thanks to four injector elements in parallel. The momentum exchange between the high velocity acetone vapor flows and the low velocity of the subcooled liquid ensures both transport and condensation functions before the connecting lines. This paper discusses the design, material and experimental performances of this demonstrator able to transfer 1.24 kW from a 90 x 90 mm² footprint heater. Two different cold sources are investigated with the same injector system and the results are discussed; a tube-in-tube ethylene-glycol water cooled (RS-0/1 demonstrator) and a carbon fiber composite panel (CFRP) with direct melting of an ice volume (RS-2C demonstrator).
Dupont, V., Accorinti, F., Henno, M. , Susana Serrano Perez, P. and Redondo Carracedo, F.
Joint 21st IHPC and 15th IHPS
Joint 21st IHPC and 15th IHPS
