Advanced Exergy Analysis and Exergoeconomics Performance Evaluation of the Thermal Processes in Existing Industrial Plant
Conventional exergy analysis pinpoints components and processes with high irreversibility.The advanced exergy-based analysis provides additional information about component interactions and reveals the real potential for improvement of each component constituting a system,as well as of the overall system.Having in mind that in addition to the technical and economic aspects it is important to obtain highly efficient thermal system,exergoeconomics be imposed as a rational scientific discipline.In this paper,an existing complex industrial plant with 33 components and 70 streams is analyzed using advanced exergy analysis and exergoeconomics performance evaluation.The mathematical model of the complex industrial plant for implementing exergoeconomics method in this paper consists of 1667 equations and the same number of unknown variables,deployed in 408 blocks.The model is implemented in a specialized software package for energy calculations(Engineering Equation Solver-EES)in which the system of nonlinear equations is solved numerically.Advanced exergy analysis provides information that 16.47%or 186.50 kW of the total exergy destruction in the steam generator can be avoided.The greatest potential for improvement(in%)of exergetic efficiency using the modern available technologies have circulating pumps(over 80%),but the absolute value of lost work skills to obtain from these measures,are very small,unfortunately.At the compressed air station,5.78 kW of exergy destruction or 20.75%can be avoided.The highest sum of Zk+CD,k suggested that the best effects on the efficiency of the overall system can be accomplished with interventions on steam generator,since the sum of the above mentioned values for that component draws 46.37 €/h.
Exergy Exergy Destruction Advanced Exergy Analysis Exergoeconomic Industrial Plant
Goran D.Vu(c)kovi(c) Gradimir S Ili(c) Mi(c)a V.Vuki(c) Mirko M.Stojiljkovi(c) Gordana M.Stefanovi(c) Edib Dedei(c)
University of Ni(s),Faculty of Mechanical Engineering,Ni(s),Serbia Koridori Srbije,Belgrade,Serbia
国际会议
桂林
英文
1-10
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）