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Received May 13, 2014
Accepted August 4, 2014
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A novel working fluid for building air-conditioning and ocean thermal energy conversion
Seawater Utilization Plant Research Center, Korea Research Institute of Ships & Oceans Engineering, Goseong-gun, Gangwon-do 219-822, Korea 1Department of Mechanical Engineering, Inha University, Incheon 402-751, Korea
dsjung@inha.ac.kr
Korean Journal of Chemical Engineering, October 2014, 31(10), 1732-1735(4), 10.1007/s11814-014-0223-z
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Abstract
An azeotropic mixture of R32/R290 is proposed for both building air-conditioning and ocean thermal energy conversion (OTEC) applications. R32/R290 is an environmentally safe working fluid mixture with no ozone depletion potential (ODP) and low global warming potential (GWP). This mixture can successfully replace R410A used in many residential air-conditioners and heat pumps since its GWP is quite low, about 25% of that of R410A. The same mixture also can be used in OTEC power plants to replace conventional working fluids of medium vapor pressure. Due to the increase in density, a significant reduction in equipment is expected, which consequently will result in an initial cost reduction.
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References
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Cavallini A, Int. J. Refrigeration, 19, 485 (1996)
Directive 2006/40/EC of the European Parliament and of the Council, Official Journal of the European Union, 14.6 (2006)
Avery WH, Wu C, Renewable energy from the ocean-A guide to OTEC, Oxford, Oxford University Press (1994)
d’Arsonval A, Revue Scientifique, 17, 370 (1881)
Vega LA, Marine Technology Society Journal, 6(4), 25 (2002)
Wu C, Burke TJ, Appl. Therm. Eng., 18, 295 (1998)
Straatman P, Wilfried G, Sark V, Sol. Energy, 82, 520 (2008)
Moore FP, Martin LL, Appl. Therm. Eng., 28, 1015 (2008)
Didion DA, Bivens DB, Int. J. Refrigeration, 13, 163 (1990)
Purkayastha B, Bansal PK, Int. J. Refrigeration, 21, 3 (1998)
Granryd E, Int. J. Refrigeration, 24, 15 (2001)
Hwang Y, Jin DH, Radermacher R, Int. J. Refrigeration, 30, 633 (2007)
Designation and safety classification of refrigerants, ANSI/ASHRAE Addenda a, b, c, d, e, f, g, and h to ANSI/ASHRAE Standard Issue 34 (2007)
McLinden MO, Klein SA, Lemmon EW, Peskin AP, NIST thermodynamic and transport properties of refrigerants and refrigerant mixtures - REFPROP Version 9.0 (1998)
Domanski PA, Didion DA, Chi J, NIST vapor compression cycle design program, CYCLE-D Version 4.0 (2003)
Andersen WC, Bruno TJ, Ind. Eng. Chem. Res., 44(15), 5560 (2005)
