Numerical Simulation of a Gas Turbine Combustor Using Nanosecond Pulsed Actuators

2013 ◽  
Author(s):  
Chin-Cheng Wang ◽  
Subrata Roy
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
Gas Turbine Combustor

Numerical simulation of a low-emission gas turbine combustor using KIVA-II

1992 ◽  
Vol 15 (8) ◽  
pp. 865-881 ◽  
Author(s):  
S. L. Yang ◽  
R. Chen ◽  
M. C. Cline ◽  
H. L. Nguyen ◽  
G. J. Micklow
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
Gas Turbine Combustor ◽  
Low Emission

Numerical Simulation for the Preliminary Design of Fuel Flexible Stationary Gas Turbine Combustors Using Conventional and Alternative Fuels

2012 ◽  
Author(s):  
Washington Orlando Irrazabal Bohorquez ◽  
João Roberto Barbosa ◽  
Rob Johan Maria Bastiaans ◽  
Philip de Goey
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Alternative Fuels ◽  
High Efficiency ◽  
Numerical Study ◽  
Operating Conditions ◽  
Pollutant Emissions ◽  
Gas Turbine Combustor ◽  
Primary Zone

Currently, high efficiency and low emissions are most important requisites for the design of modern gas turbines due to the strong environmental restrictions around the world. In the past years, alternative fuels have been considered for application in industrial gas turbines. Therefore, combustor performance, pollutant emissions and the ability to burn several fuels became of much concern and high priority has been given to the combustor design. This paper describes a methodology focused on the design of stationary gas turbines combustion chambers with the ability to efficiently burn conventional and alternative fuels. A simplified methodology is used for the calculations of the equilibrium temperature and chemical species in the primary zone of a gas turbine combustor. Direct fuel injection and diffusion flames, together with numerical methods like Newton-Raphson, LU Factorization and Lagrange Polynomials, are used for the calculations. Diesel, ethanol and methanol fuels were chosen for the numerical study. A computer code sequentially calculates the main geometry of the combustor. From the numerical simulation it is concluded that the basic gas turbine combustor geometry, for some operating conditions and burning diesel, ethanol or methanol, are of similar sizes, because the development of aerodynamic characteristics predominate over the thermochemical properties. It is worth to note that the type of fuel has a marked effect on the stability and combustion advancement in the combustor. This can be seen when the primary zone is analyzed under a steady-state operating condition. At full power, the pressure is 1.8 MPa and the temperature 1,000 K at the combustor inlet. Then, the equivalence ratios in the primary zone are 1.3933 (diesel), 1.4352 (ethanol) and 1.3977 (methanol) and the equilibrium temperatures for the same operating conditions are 2,809 K (diesel), 2,754 K (ethanol) and 2,702 K (methanol). This means that the combustor can reach similar flame stability conditions, whereas the combustion efficiency will require richer fuel/air mixtures of ethanol or methanol are burnt instead of diesel. Another important result from the numerical study is that the concentration of the main pollutants (CO, CO2, NO, NO2) is reduced when ethanol or methanol are burnt, in place of diesel.

Correction: Numerical Simulation of Flow Distribution in a Realistic Gas Turbine Combustor

2018 ◽  
Author(s):  
Veeraraghava Raju Hasti ◽  
Prithwish Kundu ◽  
Gaurav Kumar ◽  
Scott A. Drennan ◽  
Sibendu Som ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
Flow Distribution ◽  
Gas Turbine Combustor

scholarly journals Direct numerical simulation of flame stabilization assisted by autoignition in a reheat gas turbine combustor

2019 ◽  
Vol 37 (2) ◽  
pp. 2635-2642 ◽  
Author(s):  
Konduri Aditya ◽  
Andrea Gruber ◽  
Chao Xu ◽  
Tianfeng Lu ◽  
Alex Krisman ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Gas Turbine ◽  
Flame Stabilization ◽  
Gas Turbine Combustor

scholarly journals Design and Numerical Simulation of a Micro-Gas Turbine Combustor

2019 ◽  
Vol 12 (5) ◽  
pp. 1707-1718
Author(s):  
P. Zhang ◽  
Y. P. Liu ◽  
J. H. Li ◽  
Y. W. Yan ◽  
◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
Gas Turbine Combustor ◽  
Micro Gas Turbine

Numerical simulation of a hydrogen fuelled gas turbine combustor

2011 ◽  
Vol 36 (13) ◽  
pp. 7993-8002 ◽  
Author(s):  
Paolo Gobbato ◽  
Massimo Masi ◽  
Andrea Toffolo ◽  
Andrea Lazzaretto
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
Gas Turbine Combustor

Numerical Simulation of the Performance of Gas Turbine Combustor

2013 ◽  
Vol 655-657 ◽  
pp. 457-460
Author(s):  
Kai Liu
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
Distribution Curve ◽  
Hot Spot ◽  
Gas Turbine Combustor ◽  
Design Data ◽  
Average Temperature ◽  
Design Requirements ◽  
Cfd Method ◽  
Spot Temperature

Numerical simulation of the performance of QD128 gas turbine combustor was finished using CFD method. The results indicate: The flow meter distribution of combustor is reasonable, and the velocity field of combustor meets the design requirements. Outlet average temperature is 1298K, hot spot temperature is 1486K, the temperature distribution curve meets the design requirements, and OTDF=0.280，RTDF=0.086，which are slightly higher than the level of prototype aircrafts. The results enrich the design data of QD128 gas turbine, and provide reliable reference for the running and improving.

Validation of a Partially-Premixed Combustion Model for Gas Turbine Applications

2006 ◽  
Author(s):  
L. Caracciolo ◽  
P. A. Rubini
Keyword(s):  
Numerical Simulation ◽  
Gas Turbine ◽  
Computational Efficiency ◽  
Premixed Combustion ◽  
Experimental Results ◽  
Combustion Model ◽  
Gas Turbine Combustor ◽  
Accurate Representation ◽  
Combustion Models ◽  
Partially Premixed Combustion

The principal requirements of industry, with respect to the numerical simulation of gas turbine combustors, are computational efficiency and algorithm robustness, together with an accurate representation of the complex fundamental processes. This paper examines the performance of the premixed combustion models implemented in the commercial CFD package Fluent™, in order to validate the ability to model combustion in the context of a premixed gas turbine combustor. The predictions of the model are found to compare well with the experimental results available, demonstrating robustness and computational efficiency.

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