- Author
-
Noe, K. A.
|
Strehlow, R. A.
- Title
- Behavior of the Lean Methane-Air Flame at Zero-Gravity. Final Report. November 1983-December 1984.
- Coporate
- Illinois Univ., Urbana
- Sponsor
- National Aeronautics and Space Admin., Cleveland, OH
- Report
-
NASA CR-175586; UILU-ENG-85-0502,
February 1985,
48 p.
- Distribution
- Available from National Technical Information Service
- Contract
- NCC3-35
- Keywords
-
weightlessness
|
flame propagation
|
flames
|
fuel-air ratio
|
ignition limits
|
flammability
|
methane
|
stability
|
flame research
- Identifiers
- zero gravity
- Abstract
- A special rig was designed and constructed to be compatible with the NASA Lewis Research Center Airborne Research Labortory to allow the study of the effect of gravity on the behavior of lean limit in a standard 50.4 mm (2 in.) internal diameter tube when the mixtures are ignited in the open end and propagate towards the closed end of the tube. The lean limit at zero gravity was found to be 5.10% methane and the flame was found to extinguish in a manner previously observed for downward propagating flames at one g. It was observed that g-jitter could be maintained at less than ±or 0.04 g on most zero gravity trajectories.