火炎色による層流予混合火炎の当量比計測

概要

論文の詳細を見る
A mixture strength measurement in laminar premixed flames is based on changes in flame colors caused by the variation of mixture strength. Flame colors were quantitatively determined by chromaticity coordinates (x, y) defined by the CIE 1931 standard colorimetric system. The (x, y) of an inner cone in fuel/air 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 of the mixture was examined in a range where the equivalence ratio varied from about 0.9 to 1.4. The results of the experiments indicate that the equivalence ratio can be measured with an accuracy of more than 0.04 in LPG, gasoline, kerosene and city gas 6 C flames. The results also indicate that in the LPG flames burning conditions such as burner diameter, mixture velocity and mixture temperature have almost negligible effects on the accuracy of the measurement.
一般社団法人日本機械学会の論文
1996-01-25