A First Response Crew Mask for Ammonia, Hydrazine and Combustion Products

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX13CJ21P
Agency Tracking Number: 124937
Amount: $125,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2013
Solicitation Year: 2012
Solicitation Topic Code: H3.02
Solicitation Number: N/A
Small Business Information
12345 W. 52nd Ave., Wheat Ridge, CO, 80033-1916
DUNS: 181947730
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Gokhan Alptekin
 Principal Engineer
 (303) 940-2349
 galptekin@tda.com
Business Contact
 John Wright
Title: Chief Technology Officer
Phone: (303) 940-2347
Email: krhodus@tda.com
Research Institution
 Stub
Abstract
The increasing frequency of International Space Station (ISS) egress operations results in chemical contamination of the spacecraft environment. Among the most important contaminants are propellant residues (such as hydrazine) and their decomposition by-products, as well as coolants such as ammonia and Freon. Ammonia has a 24 hour Spacecraft Maximum Allowable Concentration (SMAC) of 7 ppm (Perry, 2010) and hydrazine has a 24 hour SMAC of 0.3 ppm (NASA/JSC 20584, March, 2001). These highly alkaline chemicals rapidly penetrate skin and coagulate proteins. Furthermore, a hydrazine fuel leak onto any hot surfaces may cause fire.TDA Research Inc. proposes to develop a new adsorbent that can remove these contaminants to sub ppmv concentrations. In the Phase I, we will develop the adsorbent media and design a cartridge that will be incorporated into a first response crew mask. We will demonstrate the efficacy of the cartridge in removing these contaminants at full-scale in an environmental chamber (TRL 4). We will also complete the detailed design of a general purpose first response mask, including additional adsorbents and ambient temperature oxidation catalyst that will provide complete protection against all contaminants (in addition to NH3 and hydrazine, CO, volatile organic compounds and combustion by-products, such as sulfur oxides will all be removed). In Phase II, we will work with Gentex, a leading supplier of personal protection systems in fabricating the mask and cartridges. We will complete high fidelity demonstrations in an environmental chamber to fully demonstrate its capability (non-human testing at TRL 6).

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

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