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Hypergolic Ignition of Gelled Propellants

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
78018
Program Year/Program:
2007 / STTR
Agency Tracking Number:
A064-001-0235
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Orbital Technologies Corporation (ORBITE
Space Center, 1212 Fourier Drive Madison, WI -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2007
Title: Hypergolic Ignition of Gelled Propellants
Agency / Branch: DOD / ARMY
Contract: W911NF-07-C-0114
Award Amount: $750,000.00
 

Abstract:

Hypergolic propellant gels offer improved safety and performance flexibility. However, their longer ignition delays endanger engine health and preclude widespread use. Understanding the physical and chemical paths to ignition can enable improving ignition and realizing favorable IM characteristics of gels. ORBITEC and JHU propose targeted laboratory and modeling experiments to elucidate phenomena fundamental to the ignition delay of hypergolic gelled propellants. Study of atomization, vaporization, mixing, and kinetics and the effects of the gel phase on these phenomena, will clarify the ignition of hypergolic propellant gels. Spray tests will explore the effects of gel elasticity, gel type, and injector geometry on atomization. Phase equilibrium modeling of propellant gels will predict the vapor pressure and determine if the gel phase slows evaporation. PLIF experiments and FLUENT modeling will assay the effects of gel viscoelastic properties on mixing. Kinetics calculations and sensitivity analysis will identify key reaction pathways to ignition. Engine tests will measure ignition delays for liquid and gelled propellants. Subsequent analysis will define timescales and dimensionless numbers for pre-ignition phenomena. The results of the Phase II project will be in-depth understanding of hypergolic ignition of propellant gels and the basis for a comprehensive predictive model and improved engine design.

Principal Investigator:

Millicent Coil
Senior Propulsion Engineer
6088275000
coilm@orbitec.com

Business Contact:

Eric E. Rice
President and CEO
6088275000
knaufs@orbitec.com
Small Business Information at Submission:

ORBITAL TECHNOLOGIES CORP.(ORBITE
Space Center, 1212 Fourier Drive Madison, WI 53717

EIN/Tax ID: 391628664
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
JOHNS HOPKINS UNIV.
Department of Mechanical Eng.
3400 North Charles Street
Baltimore, MD 21218
Contact: Lester K. Su
Contact Phone: (410) 516-8637
RI Type: Nonprofit college or university