Optimalizace tvaru lopatek vysokootáčkové pohonné jednotky vzduchové brusky a její testování

Abstract

The dissertation was focused on optimization a shape of the grid blades for not thermal turbines up to 1 KW power with focus to differences of performance parameters for the theoretical calculation and experimental measurement. Since theoretical calculations for these small turbines are differences from the measured data. The work has focused on optimizing the blade shape with relation to its theoretical design. For different setting shape of blades in blade cascade rotor wheel were carried out experimental performance measurement to drive a turbine 1KW. Based on measurements of these parameters was determined and evaluated the optimal ratio of the position of maximum deflection blades to the blade chord. Measurements were performed on a special measuring device and measurement errors were analysed by statistical analysis. For individual adjustment shaped blades were made theoretical calculations of torque and power. On the basis of the calculation will also determine the optimal shape of the blades of the turbine motor. To express the output transmission power and torque with respect to the shape of the blades and the flow of input to output media drive has been used for the calculation a special software. Results of experimental measurements and calculated values are mutually reviewed. Differences between the measured values and calculated values were evaluated and showed graphically. The values of these differences is possible to use for correction of theoretical design the shape of the blades with focus to the expected turbine motor values output.