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TECHNICAL PAPERS

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

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

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

J. Sol. Energy Eng 125(2), 223-229 (May 08, 2003) (7 pages) doi:10.1115/1.1564080 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., Tamm,  G., Lu,  S., and Hasan,  A. A., 2003, “Novel Combined Power and Cooling Thermodynamic Cycle for Low Temperature Heat Sources, Part I: Theoretical Investigation,” ASME J. Sol. Energy Eng., 125(2), pp. 162–166.
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.

Figures

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Refrigeration output (kJ/kg) from the cycle per unit basic solution flow, based on simulation with no losses, for two ambient temperatures
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Total heat input to the basic solution for various boiler temperatures and pressures; the absorber is at 15°C.
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Vapor fraction of the ammonia-water fluid leaving the boiler for various boiler temperatures and pressures
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Ammonia mass fraction of the vapor leaving the boiler for various boiler temperatures and pressures
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Ammonia mass fraction of the weak solution leaving the boiler for various boiler temperatures and pressures
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Schematic of the power and cooling cycle, as used in the experimental studies and simulations
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Locations of data measurements in the system
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Vapor fraction (%) of the ammonia-water fluid leaving the boiler, based on simulation with no losses

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