turbine are mounted on the common shaft, like a console relative to the position of the alternator. The recuperator is an annular cylinder placed around the rotating unit. It is a gas-to-gas plate-and-fm counterflow heat exchanger. The recuperator design is shown in Figure 3. Figure 3. Recuperator design This design avoids using long tubes. The radiator is made as a radially-arrayed tube framework and is a rigid construction produced by welding. The heat receiver is coupled with the thermal energy storage (TES) system. In this device the collected solar energy is directly transferred to thermal energy and then extracted by the working fluid that is passing through an inner volume. The working fluid is filled with ball-shaped capsules with a heat-storing medium. The working fluid transports the extracted heat energy to the power system. TES, along with the heat receiver, is located in the central conically shaped body. The inner volume of TES is divided by distance lattices. Conclusion The deficiencies of such a system are follows: • it is necessary to decrease the tangential component of outlet velocity to about zero value, which was caused by design of the plate-and-fin and design of the heat exchanger. This led to increasing pressure drop; • use of radial outflow turbine is less efficient than the radial inflow turbine;
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