"Manufacture Of High Efficiency Environmentally Friendly Ceramic Gas Turbine Engines (CGTE) Using 3-D Laser Additive Processes"
- Cracking and reduction in the strength of products of structural ceramics and cermet is an unresolved challenge for laser additive processes. Its solution was realized using non-shrink ceramics for all CGTE devices.
As a result,
- abandonment of cooling at temperatures of 1600±50°К, increasing the engine efficiency to 44-46%;
- elimination of NOx and СО emissions (the flame with temperature below 1773 К);
- 3-4 times reduction in the engine mass;
- operation hours expansion without refueling;
- increasing the operation reliability for the multi-module engine execution by switching off and connecting of separate modules that always operate at the most reliable nominal duty.
A 2kW uncooled micro engine, which testing verified the design parameters (TIT = 1623 K, efficiency = 29%, NOx = 0%, CO = 0%), was manufactured as a working model of the designed ceramic engine of 500 kW output (TIT = 1623 K, efficiency = 46%, NOx£10 mg/Nm3, CO£10 mg/Nm3).