Microwave ice prevention system

Details Microwave ice prevention system Microwave ice prevention system

1980-06-27

1982-12-21

Paschall, M. H.

Electric heating

Metal heating

Of cylinders

324 585A, 340581, 244134D, H05B 664

Patent

active

043651313

ABSTRACT:
A system which prevents the formation of ice on the external surfaces of aircraft structures by heating impinging atmospheric supercooled water droplets to above the freezing point by the transmission of microwave electromagnetic energy to the droplets which if unheated would freeze upon impact and adhere to the aircraft structures. The frequency of the microwave electromagnetic energy is such that it is strongly absorbed by the liquid water droplets but weakly absorbed by ambient air, frozen water or the aircraft structures, thus resulting in very efficient heating of the supercooled water droplets.

REFERENCES:
USAAMRDL-76-18, "Feasibility Analysis for Microwave Deicer for Helicopter Blades", Magenheim et al., 5-1977.

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