Study on the Improvement of Jet-apparatus : (3rd Report) Effect of the Shape of Mixing-chamber on the Efficiency

Abstract

In this report, the influences of the mixing-chamber dimensions on the efficiency were investigated. The most desirable dimensions for the mixing-chamber to give the maximum efficiency were obtained. That is : To give the maximum efficiency for the parallel-wall circular-section type ; (a) the length of the mixing-chamber L must be L÷8 D, where D is the internal diameter of the mixing-chamber. (b) the ratio of the sectional area of the nozzle and that of the mixing-chamber must be a_n/A÷0.15. (c) the coefficient of resistance of the driven-side must be A₂/a÷0.93.