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Adaptive Venturi for Surge Pressure Mitigation

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC20C0519
Agency Tracking Number: 205308
Amount: $124,980.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: H10
Solicitation Number: SBIR_20_P1
Solicitation Year: 2020
Award Year: 2020
Award Start Date (Proposal Award Date): 2020-08-07
Award End Date (Contract End Date): 2021-03-01
Small Business Information
20 New England Business Center
Andover, MA 01810-1077
United States
DUNS: 073800062
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jeffrey Wegener
 (978) 738-8164
Business Contact
 Michael Tieman
Phone: (978) 738-8112
Research Institution

Physical Sciences Inc. (PSI) proposes to develop a unique venturi for propellant feed systems that uses a passively controlled throat area to adjust flow rate. The adaptive venturi is a safety device that eliminates fluid hammer in gaseous, liquid, and cryogenic systems by rapidly adjusting flow area to prevent pressure surges. These benefits are achieved without adding weight, volume, or power requirements. Sensors are not used. For high-pressure oxygen systems, the adaptive venturi eliminates the risk of ignition caused by adiabatic compression. This device has been demonstrated with a prompt response time and zero evidence of instability. In Phase I, PSIrsquo;s existing adaptive venturi will be optimized specifically for high-pressure oxygen applications. The componentrsquo;s performance will be evaluated using gaseous nitrogen to quickly iterate and improve the geometric design. Then, the adaptive venturirsquo;s ability to prevent ignition due to fluid impact will be evaluated with gaseous oxygen at high pressures. Upon successful technology development under the SBIR program, the adaptive venture is a near-term product that will be transitioned to markets for both flight and ground-based applications.

* Information listed above is at the time of submission. *

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