The article presents a theoretical analysis of the phenomenon of malfunction in the adjustment system of variable stator vanes in an axial compressor of a marine gas turbine engine, and presents the results of tests conducted on a real object. Subsequently, based on the conducted research, mathematical equations were determined describing the relationships between the values of the considered engine operating parameters and the setting angle of the adjustable vanes. These equations were used to simulate changes in parameter values for a range of adjustable vane angle changes unattainable during tests on the real object.CHANGES OF AXIAL COMPRESSOR FLOW PASSAGE GEOMETRY AND WORK PARAMETERS OF MARINE GAS TURBINE ENGINE
The paper deals with the problem of influence of changes variable stator vanes axial compressor settings of gas turbine engine on work parameters of compressor and engine. Incorrect operation of change setting system of variable vanes could make unstable work of compressor and engine. This paper presents theoretical analysis of situation described above and results of own research done on real engine. On the base of results of experiment there were determined mathematical equations determining relationships of changes of particular engine work parameters in function of variable inlet guide stator vanes setting angle. There are presented results of the solution of mathematical equations, which describe the changes of engine work parameters values too.
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Source: Logistyka Magazine