内部蒸発燃焼器の研究 : 第1報, 一般的な特性

概要

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Instead of the vaporizing combustor of the externally heated type, a very simple internal vaporizing combustor of high combustion intensity has been investigated, using a combustor consisted of an air blown atomizer and a cylindrical tube. As shown in Fig.5,the combustion characteristics concernins the mixture ratios have revealed the exsistence of three regions. As it requires much flow rate at the time of ignition, the fuel spray burns at the outside of the cylindrical tube in a yellow flame. This yellow flame region exists at the right hand side of the line 3. But if the flow rate of fuel is decreased gradually, the flame enters into the inside of the cylinder, accompanying a kind of intermittent explosion, called "Bumping". The bumping region lies between the line 2 and the line 3. When the flow rate of fuel is further decreased, a blue flame combustion of very high intensity of 10^8 kcal/m^3・h・atm happens at a place between the line 1 and the line 2. At the left hand side of the line 1,the mixture is too weak to burn.
一般社団法人日本機械学会の論文
1961-02-25