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TECHNICAL PAPERS

Thermoeconomic Considerations in the Optimum Allocation of Heat Transfer Inventory for Refrigeration and Heat Pump Systems

[+] Author and Article Information
Mohamed A. Antar, Syed M. Zubair

King Fahd University of Petroleum and Minerals, Mechanical Engineering Department, Dhahran 31261, Saudi Arabia

J. Energy Resour. Technol 124(1), 28-33 (Mar 25, 2002) (6 pages) doi:10.1115/1.1446070 History: Received May 05, 2000; Revised November 30, 2001; Online March 25, 2002
Copyright © 2002 by ASME
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References

Bejan,  A., 1989, “Theory of Heat Transfer-Irreversible Refrigeration Plants,” Int. J. Heat Mass Transf., 32, pp. 1631–1639.
Klein,  S. A., 1992, “Design Considerations for Refrigeration Cycles,” Int. J. Refrig., 15, No. 3, pp. 181–185.
Bejan,  A., 1993, “Power and Refrigeration Plants for Minimum Heat Exchanger Inventory,” ASME J. Energy Resour. Technol., 115, pp. 148–150.
Bejan,  A., Vargas,  J. V. C., and Sokolov,  M., 1995, “Optimal Allocation of a Heat-Exchanger Inventory in Heat Driven Refrigerators,” Int. J. Heat Mass Transf., 38, pp. 2997–3004.
Wu,  C., Chen,  L., and Sun,  F., 1998, “Effect of Heat Transfer Law on Finite-Time Exergoeconomic Performance of Carnot Heat Pump,” Energy Convers. Manage., 39, No. 7, pp. 579–588.
d’Accadia,  M. D., and de Rossi,  F., 1998, “Thermoeconomic Optimization of a Refrigeration Plant,” Int. J. Refrig., 21, No. 1, pp. 42–54.
Chen,  L., Wu,  C., and Sun,  F., 1999, “Finite Time Thermodynamic Optimization or Entropy Generation Minimization of Energy Systems,” J. Non-Equilib. Thermodyn., 24, pp. 327–359.

Figures

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Refrigeration plant model with two heat exchangers and internally reversible cycle 3
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Dimensionless cost for a refrigeration plant with specified work input versus the unit cost ratio, G; (a) ε=0.8, and (b) ε=0.4 for optimum θ
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Dimensionless cost for the refrigeration and heat pump systems versus G for the optimum condition
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The dimensionless total cost versus the unit cost ratio G for all three cases at the optimum condition
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The hot and cold-side conductances versus the unit cost ratio G for a refrigerator with specified work input for the optimum condition
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The hot and cold-side conductances versus the unit cost ratio G for a refrigerator with specified cooling capacity for the optimum condition
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The hot and cold-side conductances versus the unit cost ratio G for a heat pump with specified heating capacity for the optimum condition
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The total inventory cost versus G for the three cases discussed in the illustrative example for the optimum condition

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