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Application of exergoeconomic analysis for power plants

Currently, energy resources are rapidly consumed. Therefore, scientists and engineers study the effective use of energy. In the present study, a thermodynamic and exergoeconomic analysis was performed in a thermal power plant in Turkey. The study involved determining the thermodynamic properties of twenty seven node points in a thermal power plant unit, and this was followed by calculating energy and exergy values of every node. Mean exergy costs were calculated by establishing energy and exergy balances of the equipment with respect to the calculated results. Subsequently, lost and damaged energies and exergies were calculated, and exergoeconomic factors were determined. The equipments were compared with each other on a graph based on the obtained results. The maximum rate of exergy loss and cost of exergy destruction corresponded to 79.5% and 886,66$/h, respectively. The maximum exergy losses in a thermal power plant occurred in the boiler, turbine groups, condenser, heating group, pumps, and auxiliary groups. The highest and second highest law efficiencies of the studied thermal power plant corresponded to 32.3% and 28.5%, respectively. The study also involved presenting suggestions for improvement. Additionally, exergoeconomic analyses were conducted while considering the power plants' investment and equipment maintenance costs. It is expected that the calculation method and the obtained results can be applied to other thermal power plants.
PAPER REVISED: 2017-03-23
PAPER ACCEPTED: 2017-03-25
  1. Rosen, M.A., Dincer, I., "Thermoeconomic Analysis of Power Plants: an Application to a Coal Fired Electrical Generating Station", Energy Conversation and Management, 44, 2743-2761, 2003.
  2. Sevilgen S.H., Exergoeconomic analysis of cogeneration system, Sigma Journal of Engineering and Natural Sciences Mühendislik ve Fen Bilimleri Dergisi, 2004/4
  3. Erdem, H.H., Akkaya, A.V., Çetin, B., Dagdas, A., Sevilgen S.H., Sahin, B., Teke I., Gungor, C., Atas, S., "Comperative Energetic and Exergetic erformance Analyses for Coal-Fired Thermal Power Plants in Turkey", International Journal of Thermal Science, 48, 2179-2186, 2009.
  4. ilgen, E., "Exergetic and Engineering Analyses of Gas Turbine ased Cogeneration Systems", Energy, 25, 1215-1229, 2000.
  5. Suresh, M.V.J.J., Reddy, K.S., Kolar, A.K., "4-E (Energy, Exergy, Environment and Economic) Analysis of Solar Thermal Aided Coal-Fired ower lants", Energy for Sustainable Development, 14, 267-279, 2010.
  6. hang, C., Wang, Y., heng, C., Lou, X., "Exergy Cost Analysis of a Coal Fired Power Plant ased on Structural Theory of Thermoeconomics", Energy Conversation and Management, 47, 817-843, 2006.
  7. Oktay, ., "Investigation of Coal-Fired ower lants in Turkey and a Case Study: Can lant", Applied Thermal Engineering, 29, 550-557, 2009.
  8. Aljundi, I.H., "Energy and Exergy Analysis of a Steam ower lant in Jordan", Applied Thermal Engineering, 29, 324-328, 2009.
  9. Shokati, N., Ranjbar, F., Yari M., "A Comperative Analysis of Rankine and Absorption ower Cycles From Exergoeconomic Viewpoint", Energy conversation and management, 88, 657-668, 2014.
  10. Ganjehkaviri, A., Jaafar, M.N.M., Ahmadi, ., arzegaravval, H., "Modelling and Optimization of Combined Cycle Power Plant Based on Exergoeconomic and Environmental Analyses", Applied Thermal Engineering, 67, 566-578, 2014.
  11. Regulagadda, ., Dincer, I., Naterer, G.F., "Exergy Analysis of a Thermal ower lant With Measured oiler and Turbine Losses", Applied Thermal Engineering, 30, 970-976, 2010.
  12. ROSEN, M.A., DİNCER, I., "Effect of Varying Dead-state Properties on Energy and Exergy Analyses of Thermal Systems", International Journal of Thermal Sciences, 43, 121-133, 2004.
  13. Arslan, O., Seyitömer termik santralı birinci ve ikinci yasa çözümlemeleri, Yüksek Lisans Tezi, Dumlupınar Üniversitesi, Fen ilimleri Enstitüsü, 2005.
  14. KAYA, M., " uharlı Güç Çevrim Veriminin Ekserji Analiziyle elirlenmesi", C Ü Soma Meslek Yüksekokulu Teknik ilimler Dergisi, Cilt:1, Sayı:9, Soma, 2008.
  15. Coşkun, A., Geredelioğlu, Ç., olatturk, A., Gokaslan, M.,Y. "Çayırhan Termik Santralinin Enerji ve Ekserji Analizi" 11. Ulusal Tesisat Mühendisliği Kongresi - 17/20 Nisan 2013/İzmir
  16. ÜNAL, F., " ir Termik Santralin Ekserji Analizi", Yıldız Teknik Üniversitesi Fen Bilimleri Enstitüsü, Yüksek Lisans Tezi, İstanbul, 2009.
  17. Çengel Y.A., oles M.A, 1996, "Mühendislik yaklasımıyla termodinamik", McGraw-Hill Literatür Ortak Yayını, (Çev.T.Derbentli), 796 s.
  18. Bejan A., Tsatsaronis., G., Moran, M., "Thermal Design and Optimization"1996
  19. Ozkan M., Ozkan D., ., Ozener O., Yılmaz, H., "Experimental study on energy and exergy analyses of a diesel engine performed with multiple injection strategies: Effect of pre-injection timing", Applied Thermal Engineering, 53, 21-30, 2013
  20. Temir, G., ilge, D.,(2004), "Thermodynamic analysis of a trigeneration system", Applied Thermal Engineering, 25: 411-422.
  21. Bejan A., Tsatsaronis G, Moran M., (1996). Thermal Design and Optimization, John Wiley and Sons Inc., U.S.A.