[KSCI] Korea Science Citation Index Service

Application of Procedures to Calculate Thermodynamic Properties of Carbon Dioxide, HFC-134a and HCFC-22

Park Hyoung Joon (R&D, Janghan Engineers, Incorporated)
Park Kyoung Kuhn (School of Mechanical and Automotive Engineering, Kookmin University)

Publication Information

International Journal of Air-Conditioning and Refrigeration / v.12, no.4, 2004 , pp. 176-183 More about this Journal

Abstract

Systematic methods to calculate thermodynamic properties of carbon dioxide, HFC-134a and HCFC-22 are presented. First, application of a basic method to identify the saturation state with given temperature or pressure is attempted and the feasibility of auxiliary equations is tested. Next, detailed procedures are suggested to tell a phase when temperature/pressure and another property are specified. Finally the Newton-Raphson method is applied to calculate unknown thermodynamic properties fixing the state with the two independent properties specified. The procedures described here are utilized to develop a computer program, which is used to find the relation between temperature and pressure with maximum isobaric heat capacity for super-critical carbon dioxide.

Keywords

Carbon dioxide; HFC-l34a; HCFC-22; Property calculation; Thermodynamic property;

Citations & Related Records

Reference

1	Span, R. and Wagner, W., 1996, A new equation of state for carbon dioxide covering the fluid region from the triple-point temperature to 1100K at pressures up to 800 MPa, J. Phys. Chem. Ref. Data, Vol.25, No.6, pp.1509-1596.
2	http://www.propath.mech.kyushu-u.ac.jp/
3	http://www.winsim.com/steam/steam.html
4	http://webbook.nist.gov/chemistry/fluid/
5	McLinden, M. 0., Klein, S. A., Lemmon, E.W. and Peskin, A. P., 1998, NIST Thermodynamic and transport properties of refrigerants and refrigerant mixtures database (REFPROP), version 6.0, National Institute of Standards and Technology, Gaithersurg, Maryland, USA.
6	Kamei, A., Beyerlein, S. W. and Jacobsen, R. T., 1995, Application of nonlinear regression in the development of a wide range formulation for HCFC-22, International Journal of Thermophysics, Vol.16, No.5, pp.1155-1164.
7	Park, K. K., 2001, A preliminary study on the form of vapor pressure equation for refrigerants, Proceedings of the SAREK 2001 Winter Annual Conference, pp. 133-137
8	http://www.chemicalogic.com/
9	Moran, M. J. and Shapiro, H. N., 1993, Fundamentals of Engineering Thermodynamics, SI ed., John Wiley and Sons, New York, p. 472
10	http://www.uidaho.edu/ $^~$ cats/
11	Park, K. K., 1998, A new type of saturated vapor density correlation for refrigerants, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol.10, No.5, pp.550-557
12	Wagner, W., Mark, V. and Prub, A., 1993, A new equation of state for chlorodifluoromethane(R22) covering the entire fluid region from 116 K to 550 K at pressures up to 200MPa, Int. J. Refrig., Vol.16, No.6, pp.373-389
13	Tillner-Roth, R. and Baehr, H. D., 1994, An international standard formulation for the thermodynamic properties of 1,1,1,2-tetrafluoroethane (HFC-134a) for temperatures from 170K to 455K and pressures up to 70 MPa, J. Phys. Chem. Ref. Data, Vol.23, No.5, pp.657-729
14	Olson, D. A., 2000, Heat transfer of supercritical carbon dioxide flowing in a cooled horizontal tube, IIF-IIR Commission B1, BE, E1, and E2, Purdue University, USA, pp.251-258