ANALYSIS OF USING ALTERNATIVE REFRIGERANTS FOR ENERGY SAVING IN DESIGN FRAMEWORK OF AIR-CONDITIONING SYSTEM
Abstrak
Environmental issues enforce us to find environmental friendly alternative refrigerants. Increasing energy consumption as consequence of widespread usage of air-conditioning systems needs effort to find efficient systems. Use ability of alternative refrigerants and effect of modified vapor-compression cycles were investigated in this research. In figuring effects of their application on a real air-conditioning system, analysis of redesign of air-conditioning system was concerned to make clear the problem. The results confirm that a right selection of refrigerants to air-conditioning system can improve its performance. Energy saving and economical costs can be reduced significantly. Several groups of hydrocarbons (HC) and hydrofluorocarbons (HFC) have good thermodynamic performance and better than R-22 that will be phased out. By introducing these alternative refrigerants, carbon-dioxide (CO2) emissions can be reduced due to energy saving caused by increasing of the coefficient of performance (COP).
Referensi
S. Devota, A.V. Waghmare, N.N. Sawant, and
B.M. Domkundwar, Alternatives to HCFC-22 for
Air Conditiners, Applied Thermal Engineering, 21,
-715, 2001.
E. Granryd, Hydrocarbons as refrigeans -an
overview, International Journal of Refrigeration,
, 15-24, 2001.
D.B. Bivens and B.H. Minor, Fluoroesthers and
Other Generation Fluids, International J.
Refrigeration, 21(7), 567-576, 1998
O.R. Neilsen, Application of HC Refrigerants in
Refrigerating System and Heat Pumps, Proc.
Seminar on Ods Phase-out: Solutions for the
Refrigeration Sector, Kuta Bali, pp. 97-101, 1999.
T. Sulistiyanto, P. Atmadi, N. Damitri, C.
Soekardi, and Kafi'uddin, Energy Saving Potential
by Utilization of Hydrocarbon Refrigerant in
Commercial Buildings, Proc. Seminar on Ods
Phase-out: Solutions for the Refrigeration Sector,
Kuta Bali, pp. 138-143, 1999.
N.P. Tandian, A. Suwono, A.D. Pasek, T.
Hardianto, T.A.F. Soelaiman, B.T. Prasetyo, and
Kafi'uddin, Performance Testing of Indonesian
Hydrocarbon Refrigerants, Proc. Seminar on Ods
Phase-out: Solutions for the Refrigeration Sector,
Kuta Bali, pp. 133-137, 1999.
R.S. Argawal, Retrofitting of Domestic and Small
Capacity Commercial Refrigerating Appliances
Using Hydrocarbon Blends, Proc. Seminar on Ods
Phase-out: Solutions for the Refrigeration Sector,
Kuta Bali, pp. 40-47, 1999.
Carrier Air Conditioning Co, Handbook of Air
Conditioning System Design, New York, McGraw-
Hill, 1965.
ASHRAE, ASHRAE Handbook: Fundamentals, SI
Edition, 1993.
B.A. Younglove and J.F. Ely, Thermophysical
properties of fluids. II. Methane, Ethane, Propane,
Isobutane and Normal butane, Journal of Physics
and Chemical Reference Data, 16, 577-798, 1987.
I M. Astina and H. Sato, A Rational Helmholtz
Fundamental Equation of State for
Difluoromethane with an Intermolecular Potential
Background, International Journal of
Thermophysics, 24(4), 963-990, 2003.
I M. Astina and H. Sato, A Rational Fundamental
Equation of State for Pentafluoroethane with
Theoretical and Experimental Bases, International
Journal of Thermophysics, 25(1), 113-131 (2004).
I M. Astina and H. Sato, A Fundamental Equation
of State for 1,1,1,2-Tetrafluoroethane with
Intermolecular Potential Energy Background and
Reliable Ideal-Gas Properties, Fluid Phase
Equilibria, 221, 103-111, 2004.
E.W. Lemmon and R.T. Jacobsen, An International
Standard Formulation for the Thermodynamic
MESIN 57 Vol. 20 No. 2
Properties of 1,1,1-Trifluoroethane (HFC-143a) for
Temperatures From 161 to 450 K and Pressures to
MPa, Journal of Physics and Chemical
Reference Data, 29(4), 521-552, 2000.
I M. Astina and H. Sato, A Rigorous
Thermodynamic-Property Model for Fluid-Phase
,1-Difluoroethane (R-152a), International Journal
Thermophysics, 25(6), 1713-1733, 2004.
A. Kamei, S.W. Beyerlein, and R.T. Jacobsen,
Application of nonlinear regression in the
development of a wide range formulation for
HCFC-22, International Journal of Thermophysics,
(5), 1155-1164, 1995.
A. Wilson, J. Thorne, and J. Morril, Consumer
Guide to Home Energy Savings, 7th edition,
American Council for an Energy-Efficient
Economy, California, 1999.
K. Watanabe and J.W. Widiatmo, Alternative
Refrigerants and Their Thermophysical Properties,
Proc. Seminar on Ods Phase-out: Solutions for the
Refrigeration Sector, Kuta Bali, pp. 71-80, 1999.
A. Woolf, An Alternative Coding for
hydrofluorocarbons and Their Ethers, International
Journal of Refrigeration, 20(6), 452-455, 1997.
