Abstract
Natural gas combined cycle power plants (CCPPs) are widely used to meet peak loads in electric energy production. Continuous monitoring of the output electrical power of CCPPs is a requirement for power performance. In this study, the role of ambient temperature change having the greatest effect on electric production is experimentally investigated for a natural gas CCPP. The plant has generated electricity for fourteen years and setup at 240 MW in Aliağa, İzmir, Turkey. Depending on the seasonal temperature changes, the study data were obtained from each gas turbine (GT), steam turbine (ST) and combined cycle blocks (CCBs) in the ambient temperature range of 8–23 °C. In electric energy production, an important decrease was in the GTs because of the temperature increase. This decrease indirectly affected the electric energy production of the STs. As a result, the efficiency of each GT, ST and CCB decreased, although the quantity of fuel consumed by the controllers in the plant was reduced. As a result of this data, it has been recommended and applied that additional precautions have been taken in the power plant to bring the air entering the combustion chamber to ideal conditions and necessary air cooling systems have been installed.
Highlights
Energy founds in various forms such as heat, light, electricity, kinetic and potential in the environment
In order to perform the efficient calculations of natural gas cycle power plants (CCPPs) at different temperature values, the necessary data were taken by the transmitters, current, voltage transformers and energy analyzers located in the relevant places of the plant
The energies obtained from gas turbine (GT) and steam turbine (ST) between 8-23°C ambient temperatures were calculated based on the equations and these were presented as a whole Table 1
Summary
Energy founds in various forms such as heat, light, electricity, kinetic and potential in the environment. Electricity energy is used often because it can be converted into other energy resources While fossil fuels such as petroleum, natural gas and coal are used for the production of electricity, renewable energy resources such as wind, sun and geothermal are used much more recently. Thermal power plants, natural gas and nuclear power plants are among these traditional power generation plants. These plants account for about 80% of electricity energy production in the world [1]. When the studies are examined, researches are conducted in that these plants are modernized and are made less harmful to the environment [4,5,6,7]. Since these power plants are highly powerful, the smallest improvement proves to achieve a power level of MWs [8]
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