CONCEPTUAL DESIGN OF THE ULTRA-MICRO GAS TURBINE ENGINE FOR A UNMANNED AERIAL VEHICLE HYBRID PROPULSION SYSTEM

Abstract

An analytical review of ultra-micro gas turbine engines research projects was conducted.The review presents advantages and disadvantages of current engine architectures, fundamentalproblems of engine design, prospects for the development of UMGTE. A systematic parametricstudy coupled with turbomachinery aerodynamic design was conducted to identify the optimumengine design. Finally, three UMGTD designs (pessimistic, reference and optimistic) with differentcomponents efficiencies level are presented.