Planning a factorial experiment for testing a single-stage ultralow power turbine

The need for new experimental studies to find the dependency criteria for evaluating the effectiveness of single-stage ultralow power turbines (ULPT) on the regime and constructive-geometrical parameters has been shown. The usefulness of factorial experiments and their advantage over the classical multifactorial experiments for testing ULPTs are justified. The choice of influencing factors of the planned experiment, i.e. regime and constructivegeometrical parameters significantly affect the efficiency, weight, size and technical-economic indicators is made for ULPTs of three types: axial, centrifugal and centripetal. Optimal rotatable orthogonal central composite designs of factorial experiments for testing different types of turbines and their basic parameters are formed.