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Coke Resistant Coatings and Screens for Gas Turbine Fuel Systems

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-21-C-0825
Agency Tracking Number: N212-127-0408
Amount: $139,692.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N212-127
Solicitation Number: 21.2
Solicitation Year: 2021
Award Year: 2022
Award Start Date (Proposal Award Date): 2021-10-20
Award End Date (Contract End Date): 2022-04-20
Small Business Information
16 Great Hollow Road
Hanover, NH 03755-1111
United States
DUNS: 072021041
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Darin Knaus
 (603) 640-2355
Business Contact
 Robert Kline-Schoder
Phone: (603) 643-3800
Research Institution

Thermal management demands have grown for military aircraft as advanced propulsion systems, sensors, and electronic weapons have emerged and become more prevalent on the modern battlefield. Fuel can be used as a coolant, but heating the fuel can result in production of coke deposits, which can foul fuel system components such as fuel injectors or last chance screens. This issue is expected to continue and grow as aircraft become more advanced and powerful, and as different fuels such as alternative jet fuels are brought into service. If a fuel injector or last chance screen clogs, it can lead to combustion stability and performance issues which must be addressed through servicing, and these components are difficult to access. We are developing advanced coatings for fuel injectors and screens that make them less sensitive to clogging due to fuel coke deposits.  Our approach involves a novel frangible coating technology expected to significantly outperform conventional options such as silica-based coatings. We are also developing mechanical assist approaches that aid in sloughing off deposits. In Phase I we will apply our coating approach to screen material representative of a last chance screen and demonstrate our technology through fuel exposure testing.

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

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