Gas Turbine Engine Starting Applicated on TV2-117 Turboshaft

The paper presents the examination of two different types of engine starting configurations, applicated on TV2-117A turboshaft, running into the test bench. The first type of starting configuration is a normal starting, with the engine connected to the dynamometer which controls the free turbine speed by the dynamometer load. The second type of starting is a different one, the engine is not connected with the dynamometer, therefore it results that there is no control of the free turbine speed from the dynamometer, only from the engine but in particular conditions. To achieve the starting phase an instrumentation scheme is created, to control and monitor the engine, and a starting sequence with all the parameters, confirmations and commands that are involved into the starting phase. The engine starting is performed by the test bench operating system, composed of an acquisition system and a programmable controller, wherewith is running the starting sequence.

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Determining test-bench box aerodynamics impact on the force from the gas turbine engine thrust by layout changing of the inlet lemniscate mouth piece

Vestnik Moskovskogo aviatsionnogo instituta ◽

10.34759/vst-2021-4-163-179 ◽

2021 ◽

Vol 28 (4) ◽

pp. 163-179

Author(s):

Boris M. Klinskii

Keyword(s):

Gas Turbine ◽

Test Bench ◽

Gas Turbine Engine ◽

Turbine Engine ◽

Engine Thrust

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5635768 Gas turbine engine driven auxillary electric power unit with turbine speed controlled in response to generator output current

Applied Thermal Engineering ◽

10.1016/s1359-4311(97)80759-4 ◽

1997 ◽

Vol 17 (12) ◽

pp. XVIII

Keyword(s):

Electric Power ◽

Gas Turbine ◽

Power Unit ◽

Gas Turbine Engine ◽

Output Current ◽

Turbine Engine ◽

Turbine Speed ◽

Generator Output

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Surplus Power Approach to Diagnose Gas Turbine Engine Starting Characteristics

International Journal of Turbo and Jet Engines ◽

10.1515/tjj-2019-0029 ◽

2019 ◽

Vol 0 (0) ◽

Author(s):

C. Jagadish Babu ◽

Mathews P. Samuel ◽

Antonio Davis ◽

RK Mishra

Keyword(s):

Gas Turbine ◽

Gas Turbine Engine ◽

Turbine Engine ◽

Idle Speed ◽

Different Types ◽

To Come ◽

Starting Process ◽

Starting Characteristics ◽

Surplus Power ◽

Engine Start

Abstract Successful starting is of utmost importance to any gas turbine engine. In order to ensure successful engine start, the concept of surplus power to accelerate the engine from rest to its idle speed has been proposed in this paper. The concept of surplus power is illustrated with starting data of different types of engines. The effect of variation in surplus power on engine acceleration characteristics has been brought out for in-depth understanding. Analysis of surplus power will provide invaluable information to designers and operators to address issues related to engine starting process. It is found that starting characteristics, i. e. speed vs. time is only a gross characteristic whereas acceleration characteristics dN/dt provides input for minute analysis in surplus power. It is also observed that in case of turbo-shaft engine with free power configuration, turbine is found to come into action much later after light-off whereas in turbo-prop and APU engines with single spool configuration, turbine comes into action immediately after light-off followed by rapid increase in EGT.

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