Inlet Air Cooling Methods for Gas Turbine Based Power Plants

Kakaras, E.; Doukelis, A.; Prelipceanu, A.; Karellas, Sotiriοs

doi:10.1115/gt2004-53765

Cited by 14 publications

(16 citation statements)

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“…Kakaras [3] reported that the efficiency of the gas turbine is strongly related to the ambient air temperature. According to the gas turbine type, the output power is reduced by 5 to 10% of the rated power at 288 K according to the ISO standard for each increase of 10 K in the temperature of the ambient air.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of a gas turbine based on an exergy analysis

2019

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This work concerns the calculation and the analysis of the thermal performance of the components ofan MS 7001 type gas turbine with a nominal power of 87 MW using the concept of exergy. The exergy balance is used in addition to the energy balance to estimate the irreversibility of the air compressor, the combustion chamber and the turbine. The exergy analysis is carried out by applying the equilibrium equations obtained from the general definitions of the irreversibility of the thermodynamic processes and the data provided by the manufacturer. The results show that the exergy destruction of the gas turbine depends on the variation of the thermodynamic parameters: ambient temperature, compression ratio, air–fuel ratio. The combustion chamber has the highest exergy destruction estimated at 36.34 MW. The air compressor has an exergy efficiency of 84.19% that of the combustion chamber is 75.91% whilethat of the turbine expansion is 92.58%. The total exergy destruction of the gas turbine is 53.51 MW and itsefficiency is 32.44%. Improving the performance of the gas turbine requires decreasing the temperatureof the intake air.

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Section: Introductionmentioning

confidence: 99%

Thermal performance of a gas turbine based on an exergy analysis

2019

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“…Depending on the gas turbine type, power output is reduced by a percentage between 5 to 10 percent, of the ISO-rated power output (15oC), for every 10 oC increase in ambient air temperature. At the same time, the specific heat consumption increases by 1.5 to 4 percent (Kakaras, 2006).…”

Section: Introductionmentioning

confidence: 92%

Inlet temperature effect on Electric Power Production from gas turbine power plants in Kurdistan-Iraq

2017

ZJPAS

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“…[10] work done shows that an increase of 1C 0 in the compressor air inlet temperature decreases the gas turbine power output by 1% . The effect of integration of the inlet air-cooling systems was presented in [11], for two selected combined cycle power plants and two gas turbine plants. The calculation were performed on a yearly basis of operation and the timevarying climatic conditions were taken into account.…”

Section: Literature Reviewmentioning

confidence: 99%

Photovoltaic reverse osmosis fogging system for improved gas turbine generation output

Lameen

Kahn

2016

2016 International Conference on the Domestic Use of Energy (DUE)

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Turbine output and efficiency are reduced during periods of high ambient temperature which poses a significant challenge to electricity generation. In regions that experience significant increases in the seasonal demand for power as well as rising electricity costs, gas turbine inlet cooling systems have the potential to increase the generation output power of gas turbines. Gas turbine output is inversely proportional to the ambient air temperature. With each degree that ambient air temperature rises, the power output drops between 0.54%-0.9%. The intake of a gas turbine is limited by air volume, and its output depends on the flow of mass through it. Therefore, improving the density of the inlet air to the turbine compressor leads to greater mass flow to the engine hence delivering an increased power output. Amongst the different water-based methods currently available to provide turbine inlet cooling, the fogging method is the most effective technique. Water quality plays an important roles in this technique where high quality water increases the mass flow and eliminates erosion. Therefore, the water used in fogging systems is generally demineralized through a process of reverse osmosis. Furthermore, in isolated hot areas with high levels of radiation, making use of solar energy (photovoltaic) is suitable. This paper elaborates on the development of a photovoltaic application for driving reverse osmosis demineralizer fogging for improved efficiency in gas turbine generation outputs in semi-arid regions in southern Africa.

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Inlet Air Cooling Methods for Gas Turbine Based Power Plants

Cited by 14 publications

References 0 publications

Thermal performance of a gas turbine based on an exergy analysis

Thermal performance of a gas turbine based on an exergy analysis

Inlet temperature effect on Electric Power Production from gas turbine power plants in Kurdistan-Iraq

Photovoltaic reverse osmosis fogging system for improved gas turbine generation output

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