{"references": ["M.A. Hammad, M.S.Audi, Performance of a Solar LiBr-Water\nAbsorption Refrigeration System, Renewable Energy, Vol. 2, 1992, pp.\n275-282.", "S.M. Deng, W.B. Ma, Experimental studies on the characteristics of an\nabsorber using LiBr/H2O solution as working fluid, International\nJournal of Refrigeration, Vol. 22, 1999, pp. 293\u2013301.", "Omer Kaynakli, Muhsin Kilic, Theoretical study on the effect of\noperating conditions on performance of absorption refrigeration system,\nEnergy Conversion and Management, Vol. 48, 2007, pp. 599\u2013607.", "R.D. Misra, P.K. Sahoob, A. Gupta, Thermoeconomic evaluation and\noptimization of a double effect H2O/LiBr vapor-absorption refrigeration\nsystem, International Journal of Refrigeration, Vol. 28, 2005, pp. 331\u2013\n343.", "S.C. Kaushik, Akhilesh Arora, Energy and exergy analysis of single\neffect and series flow double effect water\u2013lithium bromide absorption\nrefrigeration systems, International Journal of Refrigeration, Vol. 32,\n2009, pp. 1247\u20131258.", "Tatiana Morosuk, George Tsatsaronis, A new approach to the exergy\nanalysis of absorption refrigeration machines, Energy, Vol. 33, 2008, pp.\n890\u2013907.", "I. Horuz, T.M.S. Callander, Experimental investigation of vapor\nabsorption refrigeration system, International Journal of Refrigeration,\nVol. 27, 2004, pp. 10\u201316.", "M.Izquierdo, J.D.Marcos, M.E.Palacios, A.Gonzalez Gil, Experimental\nevaluation of a low-power direct air-cooled double-effect LiBr-H2O\nabsorption prototype, Energy, Vol. 37, 2012, pp. 737\u2013748.", "Lampinen, M.J. Wiksten R, Theory of effective heat absorbing and heat\nemitting temperatures in entropy and exergy analysis with applications\nto flow systems and combustion process, Journal of Non-equilibrium\nThermodynamics, Vol. 31, 2006, pp. 257-291.\n[10] Holmberg, H., Ruohonen, P. and Ahtila, P, Determination of the real\nloss of power for a condensing and a backpressure turbine by means of\nsecond law analysis, Entropy, Vol. 11, 2009, pp. 702-712.\n[11] Patek J, Klomfar J, A computationally effective formulation of the\nThermodynamic properties of LiBr\u2013H2O solutions from 273 to 500 K\nover full composition range, International Journal of Refrigeration, Vol.\n29, 2006, pp. 566\u2013578."]}

In this paper, the exergy analysis of vapor absorption refrigeration system using LiBr-H2O as working fluid is carried out with the modified Gouy-Stodola approach rather than the classical Gouy-Stodola equation and effect of varying input parameters is also studied on the performance of the system. As the modified approach uses the concept of effective temperature, the mathematical expressions for effective temperature have been formulated and calculated for each component of the system. Various constraints and equations are used to develop program in EES to solve these equations. The main aim of this analysis is to determine the performance of the system and the components having major irreversible loss. Results show that exergy destruction rate is considerable in absorber and generator followed by evaporator and condenser. There is an increase in exergy destruction in generator, absorber and condenser and decrease in the evaporator by the modified approach as compared to the conventional approach. The value of exergy determined by the modified Gouy-Stodola equation deviates maximum i.e. 26% in the generator as compared to the exergy calculated by the classical Gouy-Stodola method.