Performance analysis of the power turbine in a environmental control system

2018 ◽  
Author(s):  
Qihang Lu ◽  
Dalin Zhang ◽  
Shuquang Xiao
Keyword(s):  
Control System ◽  
Performance Analysis ◽  
Environmental Control ◽  
Power Turbine

scholarly journals Numerical Investigation on the Dynamic Characteristics of an Adjustable Power Turbine Used in Environmental Control System

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Qihang Lu ◽  
Qi Zhang ◽  
Dalin Zhang ◽  
Zhihan Lv
Keyword(s):  
Control System ◽  
Environmental Control ◽  
Specific Change ◽  
Output Torque ◽  
System P ◽  
Power Turbine ◽  
Simulation Results ◽  
The Stability ◽  
Turbine Output ◽  
Nozzle Opening

In this paper, the environmental control system of aircraft driven by a power turbine is further analyzed. Through the numerical simulation of the change of the bleed state under different flight conditions and the change of the flow field under different nozzle opening, the simulation results are verified by the experimental results, and the specific change rules of the power turbine output torque, power, and bleed flow are obtained. It is analyzed quantitatively that adjusting the adjustable nozzle ring can keep the output power stable, widen the flight envelope, and improve the stability of the environmental control system.

A Control System for a High-Quality Generating Set Equipped With a Two-Shaft Gas Turbine

1991 ◽  
Vol 113 (2) ◽  
pp. 290-295 ◽  
Author(s):  
H. Kumakura ◽  
T. Matsumura ◽  
E. Tsuruta ◽  
A. Watanabe
Keyword(s):  
Control System ◽  
Gas Turbine ◽  
Gas Turbines ◽  
High Quality ◽  
Constant Frequency ◽  
Generating Set ◽  
Generating Sets ◽  
Power Turbine ◽  
Computer Centers ◽  
Supply Systems

A control system has been developed for a high-quality generating set (150-kW) equipped with a two-shaft gas turbine featuring a variable power turbine nozzle. Because this generating set satisfies stringent frequency stability requirements, it can be employed as the direct electric power source for computer centers without using constant-voltage, constant-frequency power supply systems. Conventional generating sets of this kind have normally been powered by single-shaft gas turbines, which have a larger output shaft inertia than the two-shaft version. Good frequency characteristics have also been realized with the two-shaft gas turbine, which provides superior quick start ability and lower fuel consumption under partial loads.

Computer Simulation of an Engine Environmental Control System

2013 ◽  
Vol 850-851 ◽  
pp. 355-358
Author(s):  
Dong Du
Keyword(s):  
Control System ◽  
Distribution System ◽  
Environmental Control ◽  
Cooling System ◽  
Flow Simulation ◽  
Aircraft Engine ◽  
Simulation Software ◽  
Temperature Decrease ◽  
Environmental System ◽  
Passenger Aircraft

This paper describes the use of Fluid Flow Simulation Software to model a passenger aircraft engine environmental control system. The analysis simulates the cooling pack and the engine distribution system in a single model.The engine environmental system is very important for engine working efficiently. Using AMEsim software to simulate the cooling system can make it easily and clearly. The influence of the heat component and the fan operating is studied also. Through the analysis of the cooling system, we know that with the help of fan, the system can get additional air in the radiator and make the temperature decrease consequently.

Failure of flexible couplings in environmental control system (ECS) of an aircraft

2021 ◽  
Vol 125 ◽  
pp. 105401
Author(s):  
K. Raghavedra ◽  
M. Madan ◽  
M. Sujata ◽  
S.K. Bhaumik
Keyword(s):  
Control System ◽  
Environmental Control
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