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EFFECTIVE LOW POWER GAS-LIQUID SEPARATION SYSTEMS ARE IMPERATIVE FOR THE OPERATION OF COST-EFFECTIVE TWO-PHASE FLOW SYSTEMS IN SPACE. THE LIMITATIONS ON THE VOLUMES AND WEIGHTS TO BE CARRIED FOR SPACE EXPERIMENTS MAKE IT IMPERATIVE TO HAVE THE CAPABILITY TO SEPARATE GASES FROM LIQUIDS IN ORDER TO RECYCLE AND REUSE BOTH. ONE EFFECTIVE WAY TO DO SO IS TO USE CENTRIFUGAL FORCE. MANY PHASE SEPARATORS DEVICES HAVE BEEN DESIGNED AND INVESTIGATED USING THIS FORCE AND PASSIVE SEPARATORS REQUIRING NO MOVING MECHANICAL PARTS AND LOW POWER HAVE BEEN INVESTIGATED INTENSIVELY OWING TO THEIR SIMPLICITY AND DEPENDABILITY. MCQUILLEN ET AL. [1-3] AT NASA GLENN RESEARCH CENTER HAS DEVELOPED THE CASCADE CYCLONIC SEPARATION DEVICE (CSD-C). THIS FREE VORTEX SEPARATOR (FVS) IS VERY EFFICIENT FOR MID-RANGE VOID FRACTION (FROM 40 TO 80% OF GAS) WITH AN EFFICIENCY APPROACHING 100%. HOWEVER IT IS NOT AS EFFICIENT FOR LOWER VOID FRACTION.

$358,975FY2020National Aeronautics and Space AdministrationNASA

Dynaflow, Inc., Jessup MD

Investigators

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EFFECTIVE LOW POWER GAS-LIQUID SEPARATION SYSTEMS ARE IMPERATIVE FOR THE OPERATION OF COST-EFFECTIVE TWO-PHASE FLOW SYSTEMS IN SPACE. THE LIMITATIONS ON THE VOLUMES AND WEIGHTS TO BE CARRIED FOR SPACE EXPERIMENTS MAKE IT IMPERATIVE TO HAVE THE CAPABILITY TO SEPARATE GASES FROM LIQUIDS IN ORDER TO RECYCLE AND REUSE BOTH. ONE EFFECTIVE WAY TO DO SO IS TO USE CENTRIFUGAL FORCE. MANY PHASE SEPARATORS DEVICES HAVE BEEN DESIGNED AND INVESTIGATED USING THIS FORCE AND PASSIVE SEPARATORS REQUIRING NO MOVING MECHANICAL PARTS AND LOW POWER HAVE BEEN INVESTIGATED INTENSIVELY OWING TO THEIR SIMPLICITY AND DEPENDABILITY. MCQUILLEN ET AL. [1-3] AT NASA GLENN RESEARCH CENTER HAS DEVELOPED THE CASCADE CYCLONIC SEPARATION DEVICE (CSD-C). THIS FREE VORTEX SEPARATOR (FVS) IS VERY EFFICIENT FOR MID-RANGE VOID FRACTION (FROM 40 TO 80% OF GAS) WITH AN EFFICIENCY APPROACHING 100%. HOWEVER IT IS NOT AS EFFICIENT FOR LOWER VOID FRACTION. · GrantIndex