Thermoeconomic evaluation and optimization of a double-effect H 2O/LiBr vapour-absorption refrigeration system

R.D. Misra, P.K. Sahoo, A. Gupta

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

In this paper, the thermoeconomic concept is applied to the optimization of a double-effect H2O/LiBr VAR system, aimed at minimizing its overall product cost. A simplified cost minimization methodology based on the thermoeconomic concept is applied to calculate the economic costs of all the internal flows and products of the system by formulating thermoeconomic cost balances. Once these costs are determined, the system is thermoeconomically evaluated to identify the effects of the design variables on cost of the flows and products. This enables to suggest changes of the design variables that would make the overall system cost-effective. Finally, an approximate optimum design configuration is obtained by means of an iterative procedure. The result shows significant improvement in the system performance. The sensitivity analysis shows that the changes in optimal values of the decision variables are negligible with changes in the fuel cost. © 2004 Elsevier Ltd and IIR. All rights reserved.
Original languageEnglish
Pages (from-to)331-343
Number of pages13
JournalInternational Journal of Refrigeration
Volume28
Issue number3
DOIs
Publication statusPublished - 2005

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Absorption refrigeration
Vapors
Costs
Sensitivity analysis
Economics

Cite this

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title = "Thermoeconomic evaluation and optimization of a double-effect H 2O/LiBr vapour-absorption refrigeration system",
abstract = "In this paper, the thermoeconomic concept is applied to the optimization of a double-effect H2O/LiBr VAR system, aimed at minimizing its overall product cost. A simplified cost minimization methodology based on the thermoeconomic concept is applied to calculate the economic costs of all the internal flows and products of the system by formulating thermoeconomic cost balances. Once these costs are determined, the system is thermoeconomically evaluated to identify the effects of the design variables on cost of the flows and products. This enables to suggest changes of the design variables that would make the overall system cost-effective. Finally, an approximate optimum design configuration is obtained by means of an iterative procedure. The result shows significant improvement in the system performance. The sensitivity analysis shows that the changes in optimal values of the decision variables are negligible with changes in the fuel cost. {\circledC} 2004 Elsevier Ltd and IIR. All rights reserved.",
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Thermoeconomic evaluation and optimization of a double-effect H 2O/LiBr vapour-absorption refrigeration system. / Misra, R.D.; Sahoo, P.K.; Gupta, A.

In: International Journal of Refrigeration, Vol. 28, No. 3, 2005, p. 331-343.

Research output: Contribution to journalArticle

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AU - Misra, R.D.

AU - Sahoo, P.K.

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AB - In this paper, the thermoeconomic concept is applied to the optimization of a double-effect H2O/LiBr VAR system, aimed at minimizing its overall product cost. A simplified cost minimization methodology based on the thermoeconomic concept is applied to calculate the economic costs of all the internal flows and products of the system by formulating thermoeconomic cost balances. Once these costs are determined, the system is thermoeconomically evaluated to identify the effects of the design variables on cost of the flows and products. This enables to suggest changes of the design variables that would make the overall system cost-effective. Finally, an approximate optimum design configuration is obtained by means of an iterative procedure. The result shows significant improvement in the system performance. The sensitivity analysis shows that the changes in optimal values of the decision variables are negligible with changes in the fuel cost. © 2004 Elsevier Ltd and IIR. All rights reserved.

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