LOW REACTION FORCE NOZZLE USING UNSTEADY FLOW

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$49,901.00
Award Year:
1989
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
10751
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Continuum Dynamics Inc
Po Box 3073, Princeton, NJ, 08543
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Alan J Bilanin
Principal Investigator
(609) 734-9282
Business Contact:
() -
Research Institution:
n/a
Abstract
THE REACTION FORCES REQUIRED TO OVERCOME THE THRUST OF A HANDLINE NOZZLE CREATES TIRING AND UNSAFE CONDITIONS FOR FIRE FIGHTERS, RESTRICTS THEIR ABILITY TO CONTROL THE NOZZLEAND ALSO LIMITS THE PRESSURES AND FLOW RATES WHICH CAN BE USED TO CONTROL A FIRE. IT IS DEMONSTRATED, BASED ON NEWTON'S LAWS OF MOTION, THAT A REDUCTION IN THE NET REACTION FORCE WITHOUT SUBSTANTIALLY REDUCING THE MASS FLOW AND DISCHARGE VELOCITY IS ONLY POSSIBLE USING AN UNSTEADY FLOW CONCEPT. USING THE UNSTEADY FLOW CONCEPTS DISCUSSED HERE, IT IS POSSIBLE TO REDUCE THE NET REACTION FORCE AT THENOZZLE TO A NEGLIGIBLE LEVEL WHILE INCREASING THE FIRE FIGHTING CAPABILITIES, E.G., INCREASING THE MASS FLOW AND DISCHARGE VELOCITY. THE PROPOSED EFFORT INCLUDES TESTING A PROTOTYPE NOZZLE TO VERIFY THE FEASIBILITY OF THE UNSTEADY FLOW APPROACH.

* information listed above is at the time of submission.

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