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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12496
Title: Thermoeconomic optimization of a LiBr/H 2O absorption chiller using structural method
Authors: Misra R.D.
Sahoo P.K.
Gupta A.
Published in: Journal of Energy Resources Technology, Transactions of the ASME
Abstract: The optimization strategy for absorption chiller systems is generally based on thermodynamic analysis. However, the optimum, so obtained, does not always guarantee the economic optimum. In this regard, the thermoeconomics that combines the thermodynamic principles with economic parameters plays a vital role for achieving the cost effectiveness of these systems. In this paper, this technique is applied to optimize a single-effect LiBr/H 2O absorption chiller system for air-conditioning applications aiming at achieving the minimum product cost. This optimization methodology is based on the relative interdependence between component irreversibility and the total system irreversibility. This relationship, known as structural coefficient, is used to evaluate the economic cost of the product of the system. The use of structural coefficient eliminates complex numerical procedures, and the optimization is achieved by sequential local optimization of the subsystems of the system. The analysis reveals that the capital cost of the optimum configuration is increased by about 33.3% from the base case, however, the additional cost is well compensated by reduced fuel cost. This is possible because of reduction of plant irreversibilities by about 47.2%. Copyright © 2005 by ASME.
Citation: Journal of Energy Resources Technology, Transactions of the ASME (2005), 127(2): 119-124
URI: https://doi.org/10.1115/1.1830049
http://repository.iitr.ac.in/handle/123456789/12496
Issue Date: 2005
Keywords: Absorption Chiller
Optimization
Structural Coefficient
Thermoeconomic Analysis
ISSN: 1950738
Author Scopus IDs: 36163111900
22835953900
55491955100
Author Affiliations: Misra, R.D., Mechanical Engineering Department, National Institute of Technology, Silchar-788 010, India, Mech. and Ind. Eng. Department, I.I.T. Roorkee, Roorkee-247 667, India
Sahoo, P.K., Mechanical and Industrial Engineering Department, Indian Institute Technology Roorkee, Roorkee-247 667, India, Department of Mechanical and Industrial Engineering, University of Roorkee, India
Gupta, A., Mechanical and Industrial Engineering Department, Indian Institute Technology Roorkee, Roorkee-247 667, India, Department of Mechanical and Industrial Engineering, University of Roorkee, India
Corresponding Author: Sahoo, P.K.; Mechanical and Industrial Engineering Department, Indian Institute Technology Roorkee, Roorkee-247 667, India; email: sahoofme@iitr.ernet.in
Appears in Collections:Journal Publications [ME]

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