火炎色による層流予混合火炎の当量比計測(第2報)

概要

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The flame color method to measure mixture strength in laminar premixed flames was investigated as a new combustion diagnostic technique. Flame colors were quantitatively determined by chromaticity coordinates (x, y) defined by the CIE 1931 standard colorimetric system. Using 12 types of hydrocarbons, the (x, y) of an inner cone in premixed laminar flames held on a circular tube burner were measured with a colorimeter, and the relationship between the (x, y) and the equivalence ratio φ of the mixture was examined in a range of φ=0.9 to 1.4. The experimental results indicated that the equivalence ration could be measured with accuracy of 0.008-0.014 and error due to axial position in the inner cone was less than 0.02-0.05. Humidity of air had almost negligible effects on the accuracy of the measurement. Results also indicated that the effect of back-light could be corrected by introducing the concept of additive mixture of color stimuli.
一般社団法人日本機械学会の論文
1998-09-25