Quantitative Detection of Combustion Species using Ultra-Violet Diode Lasers

Award Information
Agency:
National Aeronautics and Space Administration
Amount:
$0.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
N/A
Award Year:
2001
Phase:
Phase I
Agency Tracking Number:
991241
Solicitation Topic Code:
N/A
Small Business Information
Southwest Sciences, Inc.
1570 Pacheco Street Suite E-11, Santa Fe, NM, 87505
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 Daniel Oh
 Principal Research Scientist
 () -
 dboh@swsciences.com
Business Contact
 Alan Stanton
Title: President
Phone: (505) 984-1322
Email: astanton@swsciences.com
Research Institution
N/A
Abstract
Combustion studies in microgravity are critical to ensuring the safety of personnel onboard space craft as well as for improving our knowledge of combustion phenomena. Under microgravity conditions, flame ignition, propagation and extinction become simplified due to the lack of buoyancy. Quantitative monitoring of combustion species (reactants, products, intermediates) provides rigorous validation of combustion models and yield a better understanding of combustion. Many laboratory-based combustion diagnostics are not suited to use on microgravity platforms due to unique space and power constraints. We propose developing a new UV diode laser-based microgravity combustion diagnostic for quantitative detection of key combustion species. The instrument will allow absolute concentration measurement of key combustion species including trace radicals using a wide variety of microgravity combustion platforms including the Space Station. Our approach uses room temperature UV diode laser output directly, thereby keeping the instrument compact, rugged and energy efficient. The feasibility of the proposed technique will be demonstrated by quantitative measurement of CH radicals in laboratory flames. Further progress in fabrication technology of UV diode lasers for shorter wavelengths and higher power will result in measurement of species in deeper UV.

* information listed above is at the time of submission.

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