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In this paper, one way of heat protection from hot elements of the ground-based powerdriven high-temperature gas turbine plant case have been experimentally studied by using shields placed between the case and outer skin under free convection in air gaps. Using the experimental model setup, experiments aimed at studying the temperature state of all its elements, namely, hot and cold walls, shield, and air gaps under free convection have been conducted. In the course of these experiments, the temperature of hot wall and air gap thicknesses were varied. The plots obtained by thermometering all walls are presented. As a result, generalization of the data obtained makes it possible to augment the data base and use it in choosing an optimal version of heat protection.

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The results of the analysis of the laws of fast-flowing pulsed processes in semiconductor plugs of capacitive ignition systems of gas turbine engines (GTE), which can be a guideline for assessing the adequacy of the developed models of ignition systems, are presented. The most stable dependences of the energy parameters of discharges in semiconductor plugs on the parameters of the discharge circuits are presented — the capacitance and charge voltage of the storage capacitor, the inductance of the discharge circuit, the interelectrode gap, the cable length, the core material of the induction coil, type of spark discharge. Keywords capacitive ignition system, storage capacitor, semiconductor spark plug, spark discharge parameters texprom@yandex.ru

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