In this paper there are offered calculated and experimental methods of simulating the high-speed modes of induction heating and designing the new inductor to provide the preset nonuniform thermal and thermostress state for cooled and uncooled blades of gas-turbine engine by changing the inductor width (specific power of induction heating). The peculiarity of this technique is the possibility of conducting the thermal cyclic tests of gas-turbine-engine parts with remaining the guaranteed minimal constant clearance between inductor and blade surface that reduces the probability of temperature-field distortion in changing the blades and promotes the efficiency enhancement of induction heating. Obtained results were used to conduct the tests of blades of gas-turbine-engine turbine. Carried out tests at this set with using the high-speed modes of induction heating helped to reveal quickly required changes in the blade structure.

In recent years and in many countries the economic development of distant regions is increasingly dependent on energy resources. This fact makes the world scientific community pay more attention to the renewable energy sources. Special attention is paid to the solar, wind and small hydropower for electrical consumers who have no possibility to connect to the central power supply lines. In the countries that have water resources the financial support is given to the development of small and micro hydropower stations. The present work presents the results of the research on the improved method of calculation of water-diverting structures of low-head hydroelectric power plant with an installed cross-jet hydro turbine that is actual for the power supply of small power consumers. The presented method can be used for the preliminary analysis of morphometric characteristics of water course as well as the basic parameters of a cross-jet hydro turbine.

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