THERMO ACOUSTIC PROCESSES IN LOW EMISSION COMBUSTION CHAMBER OF GAS TURBINE ENGINE CAPACITY 25 MW

2019 ◽  
pp. 86-90
Author(s):  
Sergey Serbin
Keyword(s):  
Mathematical Models ◽  
Combustion Chamber ◽  
Gas Turbine ◽  
Three Dimensional ◽  
Fuel Mixture ◽  
Gas Turbine Engine ◽  
Operational Parameters ◽  
Combustion Chambers ◽  
Turbine Engine ◽  
Low Emission

The appliance of modern tools of the computational fluid dynamics for the investigation of the pulsation processes in the combustion chamber caused by the design features of flame tubes and aerodynamic interaction compressor, combustor and turbine is discussed. The aim of the research is to investigate and forecast the non-stationary processes in the gas turbine combustion chambers. The results of the numerical experiments which were carried out using three-dimensional mathematical models in gaseous fuels combustion chambers reflect sufficiently the physical and chemical processes of the unsteady combustion and can be recommended to optimize the geometrical and operational parameters of the low-emission combustion chamber. The appliance of such mathematical models are reasonable for the development of new samples of combustors which operate at the lean air-fuel mixture as well as for the modernization of the existing chambers with the aim to develop the constructive measures aimed at reducing the probability of the occurrence of the pulsation combustion modes. Keywords: gas turbine engine, combustor, turbulent combustion, pulsation combustion, numerical methods, mathematical simulation.

New Design of Ignition System of Gas Turbine

2014 ◽  
Vol 592-594 ◽  
pp. 1662-1666
Author(s):  
Rahul Singh ◽  
Amber Jain ◽  
Harish Kumar
Keyword(s):  
Thermal Analysis ◽  
Combustion Chamber ◽  
Gas Turbine ◽  
Fuel Mixture ◽  
Gas Turbine Engine ◽  
Ignition System ◽  
Turbine Engine ◽  
New Type ◽  
New System

This paper is all about a new type of ignition system for igniting the air-fuel mixture within combustion chamber of a gas turbine engine. In this system there will a separate ignition inside the primary combustion chamber which will be outside the main combustion chamber and responsible for igniting main source of air/fuel mixture inside the combustion chamber. This system is designed to overcome several problems of present ignition system of gas turbine engine and also thermal analysis of this new system has been shown in this paper.

scholarly journals The advisability of using combustion chambers with a toroidal recirculation-mixing zone in small-sized gas turbine engines

2018 ◽  
Vol 209 ◽  
pp. 00019
Author(s):  
Michael Yurievich Orlov ◽  
Oleg Vladimirovich Kolomzarov ◽  
Vladislav Mikhailovich Anisimov ◽  
Nikita Igorevich Gurakov ◽  
Nikolai Sergeevich Mironov
Keyword(s):  
Combustion Chamber ◽  
Gas Turbine ◽  
Combustion Zone ◽  
Gas Turbine Engine ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Mixing Zone ◽  
Combustion Chambers ◽  
Theoretical Justification ◽  
Turbine Engine

The interrelations between the size of the gas turbine engine (GTE) and the size and workflow of the combustion chamber (CC) were considered. On the base of analysis of workflow organization the design of CC with toroidal recirculation mixing zone was proposed. The theoretical justification of chosen design was carried out on the base of comparison of combustion volumes, which formed in traditional CC with swirlers and in proposed CC. The comparison of combustion volumes, schematic display of combustion zones with a discrete flame and a combined combustion zone were given.

Updating the Helicopter Gas Turbine Engine Mass Model for the Defining of the Turboshaft Engine Optimal Operating Cycle Parameters

2019 ◽  
Author(s):  
D. S. Kalabuhov ◽  
V. A. Grigoriev ◽  
A. O. Zagrebelnyi ◽  
D. S. Diligensky
Keyword(s):  
Gas Turbine ◽  
Power Unit ◽  
Cooling System ◽  
Gas Turbine Engine ◽  
Parameters Optimization ◽  
Operational Parameters ◽  
Mass Model ◽  
Operating Cycle ◽  
Turbine Engine ◽  
Turboshaft Engine

Abstract The article describes the adjusted parametrical turboshaft gas turbine engine mass model that is applied for the helicopter engine operating cycle parameters optimization during a conceptual engineering. During the operation of the take-off mass, which indirectly characterizes the cost of materials for the entire designed aircraft system, one of the main components which determines the coordination of the helicopter and its engine parameters is a mass of the gas turbine power unit. Moreover, during the parametrical studies the designed mass of a power unit should be defined by the parameters of a gas turbine engine; however, this type of dependencies is not that well enough studied for today. Therefore the evaluation of the dependency between the engine mass and its operational parameters is performed by using either generalized statistical data for existing designs or by parametrical mass models since there is nothing more precise up to date. However as new types of gas turbine engines appear it is required to update the values of parametrical model coefficients. This article describes the influence of different cooling system units on the engine mass and also clarifies the coefficients that specify the engine mass advance by introducing the structural-technological measures. The last one is highly dependent on the designed gas turbine engine (GTE) serial production year. It also has been proposed to represent some coefficients that are used in the model as dependencies of the main operational parameters. This has allowed to perform the parametrical study and to gain predictive solutions in correspondence to the modern engine design level.

scholarly journals Erratum to: Investigation of the Flow Mixing behind the Flame Tube Head of a Combustion Chamber in a Gas Turbine Engine

2019 ◽  
Vol 62 (3) ◽  
pp. 528-528
Author(s):  
A. I. Sulaiman ◽  
B. G. Mingazov ◽  
Yu. B. Aleksandrov ◽  
T. D. Nguyen
Keyword(s):  
Combustion Chamber ◽  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Turbine Engine ◽  
Flame Tube ◽  
Flow Mixing ◽  
Flame Tube Head
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