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Efficiency, Performance and Robustness of Gas Turbines
mechanical tests on the material. The adoption of this technique wants substantially to
reduce the excessive long times of bonds production of the CVD or the DRIE on SiC wafer,
caused by the speed of material deposition and recording, and to the lack of accuracy of the
EDM (Electro Discharge Machining).
Fig. 28. Micro Reaction Sintering phases
7. Economic overview analysis and potentialities
All possible application and the alternatives of the proposed device must be investigated. It
appears obvious that a UMGT will be utilized in the two main area, already covered by the
large scale machines:
• the power generation
• the vehicle propulsion.
The primary application filed will be the first one; the higher energy density respect to a
chemical battery with an overall efficiency of the 5-10% is sufficient to render a UMGT more
attractive on the market. Substantially fuel tank is the bigger component, for which reason,
in the developments of such machine, the researchers have to obtain low consumption than
to high power output, thanks to the possibility to satisfy the power requirements through
“modular clusters”. Besides the possibility to feed every type of portable device, a such
generator could go satisfy the power requirements of aircraft onboard systems, in terms of
redundancy and higher operational temperatures, in comparison to the conventional battery
packages. The competition with the large scale power plant is not possible, because is not
imaginable of achieve efficiency of the order of 50-60%. The situation would be various in
the moment in which will be possible to obtain, for example with regeneration, efficiencies
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