Evaporation heat exchanger, especially for a spacecraft

Details Evaporation heat exchanger, especially for a spacecraft Evaporation heat exchanger, especially for a spacecraft

1992-11-03

1994-03-01

Davis, Jr., Albert W.

Heat exchange

With first fluid holder or collector open to second fluid

165 41, 165903, 122 40, 122366, B64G 150, F28B 102

Patent

active

052898717

ABSTRACT:
An evaporation heat exchanger having at least one active circulating circuit for a coolant liquid to be cooled, is constructed for removing heat in a spacecraft under a gravity-free operating condition and under different acceleration conditions. For this purpose, a housing encloses an evaporating space provided with at least one inlet valve for controlling the admission of a medium to be evaporated. The produced vapor or steam is discharged through a respective outlet port. A plurality of cooling tubes interconnected in a meandering shape form a number of tube panels in which the individual tubes are arranged with a different spacing from one another in a direction from the inlet valve to the outlet port. Preferably, these spacings increase in the flow direction from the inlet port to the outlet port to establish a constant flow speed for the evaporating medium. The tubes forming a panel may be arranged in a zig-zag pattern within the panel.

REFERENCES:
patent: 5101884 (1992-04-01), Leidinger
patent: 5137082 (1992-08-01), Shimoya

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