加圧燃焼火炎特性に対する炉圧の影響

概要

論文の詳細を見る
The effect of furnace pressure on flames was studied to gain basic understandings necessary for the prediction of pressurized flames based on atmospheric pressure test results. Three model burners for application to pressurized chemical plants were tested using a variable pressure, water-cooled test furnace. Flame temperature, in-flame gas concentration, NO_x emission and heat extraction to the furnace wall were measured. Also, two different methodologies for pressure condition change, the constant Reynolds number method and the constant residence time method, were tested. The test results revealed that flame patterns remain unchanged with pressure change for the constant Reynolds number method if Re is sufficiently large. On the contrary the constant residence time method showed a slight change in size for flames at Re〜10^4. A strong pressure dependence of NO_x emission could be observed for the constant Reynolds number method, while only a weak dependence exists for the constant residence time method. Gas emissivity data showed a similar pressure dependence regardless of the pressure change method.
社団法人日本機械学会の論文
1996-01-25