Volume 20, Issue 6 (June 2020)
Modares Mechanical Engineering 2020, 20(6): 1423-1433 |
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Sedighi M, Aelaei M, Aghnia M. Sensitivity Analysis Effect Environmental Conditions on Dynamic Operation of Fuel System on the GTCP85-180 Micro Gas Turbine. Modares Mechanical Engineering 2020; 20 (6) :1423-1433
URL: http://mme.modares.ac.ir/article-15-37145-en.html
URL: http://mme.modares.ac.ir/article-15-37145-en.html
1- Sattari Research Center, Shahid Sattari University of Aeronautical Engineering, Tehran, Iran
2- Aerodynamic Department, Aerospace Faculty, Shahid Sattari University of Aeronautical Engineering, Tehran, Iran ,aelaei@ssau.ac.ir
2- Aerodynamic Department, Aerospace Faculty, Shahid Sattari University of Aeronautical Engineering, Tehran, Iran ,
Abstract: (3278 Views)
Fuel system is one of the most important parts of the micro gas turbine. Due to the variation of environmental conditions such as temperature, relative humidity of air and height in different geographical locations, the operational features of the fuel system change. In this study, the fuel system of the GTCP85-180 gas turbine is modelled by applying PID mechanical controller. The governing equations of the controller is coupled with classical thermodynamic equations of the gas turbine and the effects of different environmental conditions on start-up and norminal operation of the motor are investigated. The range of variations of the environmental conditions is choosed by considering the geographical locations of Iran. The results of the numerical simulation were verified by comparing the numerical results obtained with written code in Matlab software with experimental measurements. The results showed that the environmental temperature has the strongest effect on the operational features of the fuel control system and causes 16.3% variation of exhaust gas temperature, 3.7% variation of fuel discharge, 14.7% variation of start-up time of the motor and 4.7% variation of fuel pressure in injectors. Also, the start-up operation of the motor showed more sensitivity to environmental conditions compared to normal operation of micro gas turbine.
Article Type: Original Research |
Subject:
Internal Combustion Engine
Received: 2019/10/8 | Accepted: 2020/01/5 | Published: 2020/06/20
Received: 2019/10/8 | Accepted: 2020/01/5 | Published: 2020/06/20
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