Advanced exergy analysis of an electricity-generating facility using natural gas

Abstract This paper deals with the performance assessment of an electricity generation facility located in the Eskisehir Industry Estate Zone in Turkey using advanced exergy analysis method. The exergy efficiency of the system is determined to be 40.2% while the total exergy destruction rate of the system is calculated to be 78.242 MW. The exergy destruction rate within the facility’s components is divided into four parts, namely endogenous, exogenous, avoidable and unavoidable exergy destruction rates. Through this analysis, the improvement potentials of both the components and the overall system along with the interactions between the components are deducted based on the actual operational data. The analysis indicates that the combustion chamber, the high pressure steam turbine and the condenser have high improvement potentials. The relations between the components are weak because of the ratio of the endogenous exergy rates of 70%. The improvement potential of the system is 38%. It may be concluded that one should focus on the gas turbine and combustion chamber for improving the system, being the most important components of the system.

[1]  Tatiana Morosuk,et al.  Advanced exergetic analysis of a novel system for generating electricity and vaporizing liquefied natural gas , 2010 .

[2]  Tatiana Morosuk,et al.  Conventional and advanced exergetic analyses applied to a combined cycle power plant , 2012 .

[3]  George Tsatsaronis,et al.  ON AVOIDABLE AND UNAVOIDABLE EXERGY DESTRUCTIONS AND INVESTMENT COSTS IN THERMAL SYSTEMS , 2002 .

[4]  Arif Hepbasli,et al.  Exergetic performance evaluation of a combined heat and power (CHP) system in Turkey , 2007 .

[5]  George Tsatsaronis,et al.  Design Optimization Using Exergoeconomics , 1999 .

[6]  Tatiana Morosuk,et al.  Advanced Thermodynamic Analysis and Evaluation of a Supercritical Power Plant , 2012 .

[7]  Arif Hepbasli,et al.  Exergoeconomic analysis of a combined heat and power (CHP) system , 2008 .

[8]  M. J. Moran,et al.  Fundamentals of Engineering Thermodynamics , 2014 .

[9]  Tatiana Morosuk,et al.  Advanced Exergy Analysis for Chemically Reacting Systems – Application to a Simple Open Gas-Turbine System , 2009 .

[10]  Tatiana Morosuk,et al.  Advanced Exergoeconomic Analysis Applied to a Complex Energy Conversion System , 2012 .

[11]  George Tsatsaronis,et al.  Recent developments in exergy analysis and exergoeconomics , 2008 .

[12]  Fontina Petrakopoulou,et al.  Comparative Evaluation of Power Plants with CO2 Capture: Thermodynamic, Economic and Environmental Performance , 2011 .

[13]  Tatiana Morosuk,et al.  Advanced exergy-based analyses applied to a system including LNG regasification and electricity generation , 2012 .

[14]  M. J. Moran,et al.  Thermal design and optimization , 1995 .

[15]  Haydar Aras,et al.  Energetic Analyses of the Combined Heat and Power (CHP) System , 2007 .

[16]  George Tsatsaronis,et al.  Cost Reduction Strategies for an Oxy-Fuel Power Plant With CO2 Capture: Application of an Advanced Exergoeconomic Analysis to an Advanced Zero Emission Plant , 2011 .

[17]  Tatiana Morosuk,et al.  Advanced Exergoeconomic Evaluation and Its Application to Compression Refrigeration Machines , 2007 .

[18]  Tatiana Morosuk,et al.  Advanced exergetic analysis : Approaches for splitting the exergy destruction into endogenous and exogenous parts , 2009 .

[19]  Zengliang Gao,et al.  Avoidable thermodynamic inefficiencies and costs in an externally fired combined cycle power plant , 2006 .

[20]  Tatiana Morosuk,et al.  Environmental evaluation of a power plant using conventional and advanced exergy-based methods☆ , 2012 .