Abstract
The leading gas turbines manufacturers are developing the technologies of the environmental friendly combustion of industrial and synthetic gases of low calorific values. In this case they are faced with critical problems concerning combustion stability assurance and the necessity of the gas turbines significant modernization due to the differences between the low calorific and natural gases. The numerical simulation results of the low calorific value synthetic gas combustion in the combustion chamber by means of different technologies are considered in the paper.
Highlights
The numerical simulation results of the low calorific value synthetic gas combustion in the combustion chamber by means of different technologies are considered in the paper
During development of the combined cycle power plant (CCPP) operated on the synthetic gas it is required to consider the significant difference between the fuel gas and the natural gas properties such as the calorific value, the Wobbe Index, the flame propagation rate as well as the presence of different pollutants
The greater the differences between the fuel gas and the natural gas properties, the greater the modernization depth. In this case the leading manufacturers of the synthetic gas turbine often follow the path of the fuel gases unification by hydrodynamic, thermodynamic and kinetic characteristics by means of the gases dilution or enrichment, and during the synthetic gas combustion scheme development the thermodynamic performance is associated with the corresponding kinetic diagram providing the achievement of the technological and environmental indexes of the process
Summary
During development of the combined cycle power plant (CCPP) operated on the synthetic gas it is required to consider the significant difference between the fuel gas and the natural gas properties such as the calorific value, the Wobbe Index, the flame propagation rate as well as the presence of different pollutants. The greater the differences between the fuel gas and the natural gas properties, the greater the modernization depth In this case the leading manufacturers of the synthetic gas turbine often follow the path of the fuel gases unification by hydrodynamic, thermodynamic and kinetic characteristics by means of the gases dilution or enrichment, and during the synthetic gas combustion scheme development the thermodynamic performance is associated with the corresponding kinetic diagram providing the achievement of the technological and environmental indexes of the process. For selection of the optimal gas turbine combustion chamber design the numerical simulation of the operation of combustion chamber of three types (Siemens, GE и MHPS) was performed on the low calorific value fuel gases, obtained after correction of the oxygen gasification gases and blast-furnace gases.
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