Lean-limit extinction of propane/air mixtures in the stagnation-point flowThe extinction limits of lean propane/air mixtures in the stagnation-point flow of a flat surface were mapped as functions of the surface temperature and the mixture concentration, velocity, and temperature. The maximum flame temperatures and the flame locations were also measured. The results show that the extinction limits are extremely insensitive to the nature of the surface, which can be heated to 1000 C. On the other hand preheating the gas mixture increases the flame temperature by an almost equal amount and therefore significantly extends the extinction limits. It is also found that at extinction the maximum flame temperatures and the flame locations, which when scaled with the velocity gradient, assume almost constant values independent of the other system variables investigated.
Document ID
19820045201
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Law, C. K. (Northwestern Univ. Evanston, IL, United States)
Ishizuka, S. (Northwestern Univ. Evanston, IL, United States)
Mizomoto, M. (Northwestern University Evanston, IL, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Inorganic And Physical Chemistry
Meeting Information
Meeting: In: Symposium /International/ on Combustion