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TECHNICAL PAPERS

Novel Combined Power and Cooling Thermodynamic Cycle for Low Temperature Heat Sources, Part I: Theoretical Investigation

[+] Author and Article Information
Gunnar Tamm, D. Yogi Goswami, Shaoguang Lu

Department of Mechanical Engineering, University of Florida, P.O. Box 116300, Gainesville, FL 32611-6300

Afif A. Hasan

Department of Mechanical Engineering, Birzeit University, P.O. Box 14, Birzeit, Palestinian Authority, Via Israel

J. Sol. Energy Eng 125(2), 218-222 (May 08, 2003) (5 pages) doi:10.1115/1.1564576 History: Received June 01, 2002; Revised January 01, 2003; Online May 08, 2003
Copyright © 2003 by ASME
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References

Ibrahim,  O. M., and Klein,  S., 1996, “Absorption Power Cycles,” Energy (Oxford), 21, pp. 21–27.
Kalina,  A. I., 1984, “Combined Cycle System With Novel Bottoming Cycle,” ASME J. Eng. Gas Turbines Power, 106, pp. 737–742.
Goswami,  D. Y., 1998, “Solar Thermal Technology: Present Status and Ideas for the Future,” Energy Sources, 20 , pp. 137–145.
Norton,  E., 2001, “Ammonia Liquid Recirculation,” ASHRAE J., 43, 10, pp. 50–51.
Goswami,  D. Y., and Xu,  F., 1999, “Analysis of a New Thermodynamic Cycle for Combined Power and Cooling Using Low and Medium Temperature Solar Collector,” ASME J. Sol. Energy Eng., 121, pp. 91–97.
Goswami, D. Y., Hasan, A. A., Lu, S., and Tamm, G., 2001, “Ammonia-Based Combined Power/Cooling Cycle,” UFME/SEECL Report 2001-05, Univ. of Florida, Gainesville, FL.
Xu,  F., and Goswami,  D. Y., 1999, “Thermodynamic Properties of Ammonia Water Mixtures for Use in Power Cycles,” Energy (Oxford), 24, pp. 525–536.
Cengel, Y. A., and Boles, M. A., 1998, Thermodynamics: An Engineering Approach, 3rd Edition, McGraw-Hill Inc., New York.
Szargut, J., Morris, D. R., and Steward, F. R., 1988, Exergy Analysis of Thermal, Chemical, and Metallurgical Processes, Hemisphere Publishing Co., New York, pp. 7–39.
Drbal, L. F., Boston, P. G., Westra, K. L., and Erickson, R. B., 1996, Power Plant Engineering, Chapman & Hall, New York.
Bhatt,  M. S., Srinivasan,  K., Krishna,  M. V., and Seetharamu,  S., 1994, “Absorption-Resorption Heating Cycles With the New Working Pairs R21-NMP and R21-DMA,” Energy Convers. Manage., 35, pp. 443–451.

Figures

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Schematic of the power and cooling cycle, as used in the theoretical studies
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Effect of turbine inlet pressure on the thermal efficiency (%) of the cycle
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Effect of turbine inlet pressure on the cooling capacity (kJ/kg) of the cycle
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Efficiencies of the optimized cycle at various heat source temperatures, optimized for second-law efficiency
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Pressure ratio of the optimized cycle at various heat source temperatures, optimized for second law efficiency
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Ratio of refrigeration to work of the optimized cycle at various heat source temperatures, optimized for second-law efficiency
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Exergy destruction of the optimized cycle at various heat source temperatures, optimized for second-law efficiency

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