This code gives a first design of the mixing chamber and diffuser according to the CRMC criterion.
The motive nozzle, mixing chamber and diffuser efficiencies vary from 0.513 to 0.750, 0.492 to 0.755 and 0.610 to 0.734 under the studied conditions, respectively.
It was found that dependence of gas induction on geometric parameters like distance between nozzle mixing tube, suction chamber geometry, diffuser angle was either weak or had a clear maxima at or beyond a certain value of the geometric parameter.
Combining the measured experimental data with an ejector model, a calculation method for the component efficiencies of the small two-phase ejector including the motive nozzle, mixing chamber and diffuser is proposed.
Then, the piezoelectric vibrator, pump chamber, and diffuser and nozzle were packaged together in turn to form a valveless piezoelectric micro-pump with cone-shaped tubes.
The burning products of solid fuel form a supersonic flow injected through the nozzle into the diffuser chamber having input for the water component ejected from the storage.
In the case of swirl burners with the pre-mixing diffuser chamber an offset between flame ignition point and burner outlet is usually not visible.
Since the water evaporation occurs already in the diffuser chamber due to the high temperature of input gas flow, the droplet size is gradually decreases to the lower limit value that could ever exist.
There is a lack of researches, in which will be analyzed changes of the flame length, that are caused by changes of design and operating parameters of swirl burner with the pre-mixing diffuser chamber.
Influence of key geometric parameters of gas liquid ejectors like nozzle diameter, mixing tube length, distance between the nozzle outlet and mixing tube, suction chamber geometry and diffuser angle was investigated.
Because already in the pre-mixing diffuser chamber of swirl burner occurs the ignition of coal-dust together with oxidant-gas cloud and thereby the formation of the flame.
