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Year 2017, , 151 - 157, 28.12.2017
https://doi.org/10.17350/HJSE19030000062

Abstract

References

  • Rezazadeh F, Gale WF, Hudges, KJ, Pourkashanian M. Performance viability of a natural gas fired combined cycle power plant integrated with post-combustion CO 2 capture at part-load and temporary non-capture operations. International Journal of Greenhouse Gas Control. 39 (2015) 397-406.
  • Pan M, Aziz F, Li B, Perry S, Zhang N, Bulatov I, Smith R. Application of optimal design methodologies in retrofitting natural gas combined cycle power plants with CO 2 capture 161 (2016) 695-706.
  • Açıkkalp E, Aras H, Hepbaslı A. Advanced exergy analysis of an electricity-generating facility using natural gas. Energy Conversion and Management 82 (2014) 146-153.
  • Rodriguez-Toral MA, Morton W, Mitchell DR. Using new packages for modeling, equation oriented simulation and optimization of a cogeneration plant. Computers and Chemical Engineering 24 (2000) 2667-2685.
  • Ganjehkaviri A, Jaafar MNM, Ahmadi P, Barzegaravval H. Modelling and optimization of combined cycle power plant based on exergoecenomic and environmental analyses. Applied Thermal Engineering 67 (2014) 566-578.
  • Çengel YA, Boles MA. Thermodynamics: An Engineering Approach, 8 th Ed.in SI Units, McGraw-Hill, 2015.
  • Borgnakke C, Sonntag RE. Fundamentals of Engineering Thermodynamics, 8 th Ed. SI Version, 2014.
  • Moran MJ. Shapiro HN. Fundamentals of Engineering Thermodynamics, 5th Edition, John Wiley & Sons Inc., 2006.
  • The Mathworks. The language of technical computing. www. mathworks.com. (last accessed 03.03.2016).
  • Balku S. Comparison between alternating aerobic-anoxic and conventional activated sludge systems. Water Research, 41(10) (2007) 2220-2228.
  • h t t p : // w w w . m a t h w o r k s . c o m / m a t l a b c e n t r a l / fileexchange/9817-x- steam-- thermodynamic- properties- of-water- and- steam (download date: 04.02.2016)
  • h t t p : // w w w . m a t h w o r k s . c o m / m a t l a b c e n t r a l / fileexchange/25030-ideal- air-properties. (download date: 04.02.2016)

Thermal Efficiency Optimization for A Natural-Gas Power Plant

Year 2017, , 151 - 157, 28.12.2017
https://doi.org/10.17350/HJSE19030000062

Abstract

Energy production from fossil fuels has been regarded as the main source of the climate change. The reason for that is the oxidation of carbon in fossil fuels to carbon dioxide during combustion and the highest percentage of greenhouse gases in atmosphere belongs to carbon dioxide. Amongst the fossil fuels natural gas is preferred due to its low emission of greenhouse gases and having no particulate matter after combustion. While the other fossil fuels emit mainly carbon dioxide during the combustion process; natural gas emits mostly water together with carbon dioxide. Around 22 % of the world’s electricity is produced by natural gas and this share is expected to increase in near future. The power plants operating with natural gas as a gas cycle consisting of a compressor, a combustion chamber and gas turbine are combined with a vapor cycle in order to increase the efficiency. A heat recovery steam generator is used to reach this aim in recent years in generating steam by the heat received from the combustion gases leaving the gas turbine. It is very important to design and operate such energy conversion systems fired by natural gas in optimal conditions. If the efficiency can be increased, it can be said that the energetic, economic, and environmental aspects also improve. The modeling and optimization studies for a combined gas-vapor power plant are studied and the most important parameters which influence the efficiency are determined. The results indicate that the most effective parameters from the viewpoint of efficiency are air/fuel ratio, gas/steam ratio and the pressure ratios of the compressor and, thus, the gas turbine. The thermal efficiency increases by 18.25 % and, in the meantime, the exergy destroyed decreases by 9.84 % using optimum design parameters determined by the optimization algorithm proposed.

References

  • Rezazadeh F, Gale WF, Hudges, KJ, Pourkashanian M. Performance viability of a natural gas fired combined cycle power plant integrated with post-combustion CO 2 capture at part-load and temporary non-capture operations. International Journal of Greenhouse Gas Control. 39 (2015) 397-406.
  • Pan M, Aziz F, Li B, Perry S, Zhang N, Bulatov I, Smith R. Application of optimal design methodologies in retrofitting natural gas combined cycle power plants with CO 2 capture 161 (2016) 695-706.
  • Açıkkalp E, Aras H, Hepbaslı A. Advanced exergy analysis of an electricity-generating facility using natural gas. Energy Conversion and Management 82 (2014) 146-153.
  • Rodriguez-Toral MA, Morton W, Mitchell DR. Using new packages for modeling, equation oriented simulation and optimization of a cogeneration plant. Computers and Chemical Engineering 24 (2000) 2667-2685.
  • Ganjehkaviri A, Jaafar MNM, Ahmadi P, Barzegaravval H. Modelling and optimization of combined cycle power plant based on exergoecenomic and environmental analyses. Applied Thermal Engineering 67 (2014) 566-578.
  • Çengel YA, Boles MA. Thermodynamics: An Engineering Approach, 8 th Ed.in SI Units, McGraw-Hill, 2015.
  • Borgnakke C, Sonntag RE. Fundamentals of Engineering Thermodynamics, 8 th Ed. SI Version, 2014.
  • Moran MJ. Shapiro HN. Fundamentals of Engineering Thermodynamics, 5th Edition, John Wiley & Sons Inc., 2006.
  • The Mathworks. The language of technical computing. www. mathworks.com. (last accessed 03.03.2016).
  • Balku S. Comparison between alternating aerobic-anoxic and conventional activated sludge systems. Water Research, 41(10) (2007) 2220-2228.
  • h t t p : // w w w . m a t h w o r k s . c o m / m a t l a b c e n t r a l / fileexchange/9817-x- steam-- thermodynamic- properties- of-water- and- steam (download date: 04.02.2016)
  • h t t p : // w w w . m a t h w o r k s . c o m / m a t l a b c e n t r a l / fileexchange/25030-ideal- air-properties. (download date: 04.02.2016)
There are 12 citations in total.

Details

Primary Language English
Journal Section Research Article
Authors

Saziye Balku This is me

Publication Date December 28, 2017
Published in Issue Year 2017

Cite

Vancouver Balku S. Thermal Efficiency Optimization for A Natural-Gas Power Plant. Hittite J Sci Eng. 2017;4(2):151-7.

Hittite Journal of Science and Engineering Creative Commons Atıf-GayriTicari 4.0 Uluslararası Lisansı (CC BY NC) ile lisanslanmıştır.