NASA SBIR 2018-II Solicitation

Proposal Summary

 18-2- H10.01-4583
 Advanced Propulsion Systems Ground Test Technology
 Additively Manufactured Dynamically Adjustable Venturi
SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Parabilis Space Technologies, Inc.
1195 Linda Vista Drive, Suite F
San Marcos, CA 92078
(855) 727-2245

PRINCIPAL INVESTIGATOR (Name, E-mail, Mail Address, City/State/Zip, Phone)
Chris Grainger
1195 Linda Vista Drive, Suite F
San Marcos, CA 92078 - 3820
(855) 727-2245

BUSINESS OFFICIAL (Name, E-mail, Mail Address, City/State/Zip, Phone)
David Brynes
1195 Linda Vista Drive, Suite F
San Marcos, CA 92078 - 3820
(619) 750-4484

Estimated Technology Readiness Level (TRL) :
Begin: 4
End: 8
Technical Abstract (Limit 2000 characters, approximately 200 words)

Parabilis Space Technologies is pleased to propose development of a novel additively manufactured, dynamically-adjustable, in-line, cavitating flow-control and measurement venturi for use in advanced propulsion system ground testing. This innovative capability dramatically adds to and extends the advantages of using a cavitating venturi to isolate combustion chambers or other downstream process fluctuations from upstream feed pressure conditions. This design will greatly simplify propulsion testing and reduce costs for cases where desired liquid flow conditions are either not precisely understood or cover a range of high-precision flow rates.  The proposed geometry is capable of scaling to both ultra-high pressure and high flow rate applications.  The primary innovation consists of a unique floating pintle design and associated structural support with built-in pressure taps.  These “printed-in” pressure taps provide both a total pressure measurement upstream of the venturi contraction and a venturi throat pressure measurement, facilitating built-in flow rate measurement and/or determination of liquid/vapor transition.  

Potential NASA Applications (Limit 1500 characters, approximately 150 words)

The proposed additive manufacturing technology provides significant benefit to a wide range of NASA applications, especially very high-pressure, high-flow, or extreme-temperature fluid applications such as hot hydrogen, LOX/methane, and LOX/H2.  The proposed innovation can also contribute substantially as a drop-in and scalable replacement for NASA’s existing flow control devices, and the further development of ground testing meters that would provide insensitivity to downstream pressure fluctuations. 

Potential Non-NASA Applications (Limit 1500 characters, approximately 150 words)

Large propulsion testing companies like NTS are target customers, but smaller propulsion testing companies will benefit substantially from this technology because of the low cost and flexibility this system allows. 

There is also a larger segment of the non-space market that requires precision flow control and variable flow rate including applications in the trillion-dollar oil and gas industry.

Duration: 18

Form Generated on 05/13/2019 13:31:47