INVESTIGATION OF HAZARDOUS VAPOR DETECTION FOR ADVANCED FLIGHT VEHICLES
Abstract
A program was conducted to evaluate techniques for the detection of hydrocarbon vapors and hydrogen aboard advanced aircraft. A radiochemical exchange technique utilizing kryptonates can be employed satisfactorily for detecting hydrocarbon vapors aboard aircraft with a Mach 3 to Mach 6 capability and hydrogen for Mach 7 and higher capability aircraft. However, it was shown that it is highly unlikely that hydrogen will exist in the presence of oxygen at temperatures in excess of 1300 F. Therefore, an aluminum oxide humidity element was investigated as to its ability to detect the water formed by combustion. This element appears suitable assuming that further development of the element can overcome its present maximum temperature limitations. A non-dispersive, open-path, infra-red technique can, in principle, be upgraded to detect hydrocarbon fuels, (not hydrogen or water), under the stipulated environmental conditions; however, a considerable developmental effort would be required. Catalytic combustion is limited in its applicability due to its relatively poor sensitivity, stability, and operating life. A photoionization technique appears most promising but will require a considerable developmental effort.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1966
- Accession Number
- AD0487447
Entities
People
- L. Seiden
- Orlando Cucchiara
- T. Donaghue