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International Conference on Computer Simulation in Physics and Beyond IOP Publishing IOP Conf. Series: Journal of Physics: Conf. Series 1163 (2019) 012022 doi:10.1088/1742-6596/1163/1/012022 technology includes tests of impeller machines in the form of models which can be manufactured quickly of cheap materials. This set of equipment will allow testing models of turbomachines of full- scale geometric dimensions and obtaining experimental data to verify all the calculated data and validation of the methods used. 6. Conclusion Method of reducing stresses in a turbine impeller is developed. This method is tested by means of a prototype turbine impeller. Configuration of the prototype is modified in presented method: blade profile is estimated in case of deviation from radial profiles, a turn of blade profiles and development a new blade, design of a turbine impeller considering enhanced requirements related to high loaded places and strength analysis of prototype turbine impeller and modified one are carried out. In contrast to initial prototype, modified turbine impeller satisfies strength requirements in working mode of a micro-turbine. Results of gasdynamic analysis are: the main gasdynamic parameters and efficiency of modified turbine impeller have inconsiderable differences (less than 1%) from appropriate parameters of initial prototype. Due to modification, safety factor of turbine impeller increased in 30% without sacrificing of gasdynamic parameters. This method can be used not only in turbine impellers but in compressor axial-radial ones. References [1] Sherstyuk A N, Zaryankin A E 1976 Radial-axial turbines of low power (Moscow: Mechanical engineering) p 208 [2] Kosoi A S, Popel' O S, Zeigarnik Y A, Sinkevich M V and Beschastnykh V N 2017 Small Gas-Turbine Units For The Power Industry: Ways For Improving The Efficiency And The Scale Of Implementation Thermal Engineering 64 (10) pp 723–28 [3] Sobolev A G 2014 Radial gas and steam turbines Turbines and diesel engines 2 pp 62–66 [4] Kostyuk A G 2007 Dynamics and durability of turbomachines (Moscow: MPEI publishing house) p 476 [5] Bruyaka V A 2010 The engineering analysis in ANSYS Workbench (Samara: Samara State University) p 271 [6] Chernousenko O Yu 2008 The enrichment and analysis of the calculated investigation of individual resource of corps, rotors, catch valves of the CHP and CMP K-200-130 block of 200 MVt Proc. Conf. Energy and heat engineering processes and equipment (Kharkiv) vol 6 (Kharkiv: NTU “KhPI”) pp 107–11 [7] Kosoi A S, Monin S V, Sinkevich M V 2018 Contemporary approaches to research supporting the development of microturbine power generation systems Vestnik Koncerna VKO «Almaz – Antey» 1 pp 72–79 6PDF Image | Development of radial turbines in low power Gas turbine engines
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