Describes the experimental setup for studying the nozzles. Presents a methodology of the experiment and data processing of the results.Keywords: turbine, nozzle, nozzle box, small-size turbo machines, microturbines, velocity coefficient.
Examined efficiency of axial rotor wheels microturbines. The mathematical models, regression-type, for efficiency rotor wheels and the exit angle of the working body from rotor wheels are presented. The technique of determining the gas-dynamic and structural characteristics of the flow part of the rotor wheels microturbines are also shown.
This paper presents the a mathematical regression model for the reactivity degree of microturbine stages depending on the constructed and model factors that have the greatest impact on the function value.
The article presents experimental data of microturbines nozzle boxes research. It describes mathematical models of nozzle outlet gas angle. Research results are analyzed and recommendations on design of nozzle boxes with small constructive outlet gas angle are given.
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