R22#

References#

Equation of State#

A. Kamei, S. W. Beyerlein, and R. T Jacobsen. Application of Nonlinear Regression in the Development of a Wide Range Formulation for HCFC-22. Int. J. Thermophys., 16(5):1155–1164, 1995. doi:10.1007/BF02081283.

Thermal Conductivity#

Mark O. McLinden, Sanford A. Klein, and Richard A. Perkins. An extended corresponding states model for the thermal conductivity of refrigerants and refrigerant mixtures. Int. J. Refrig., 23:43–63, 2000. doi:10.1016/S0140-7007(99)00024-9.

Viscosity#

Ian H. Bell and Arno Laesecke. Viscosity of refrigerants and other working fluids from residual entropy scaling . In 16th International Refrigeration and Air Conditioning Conference at Purdue, July 11-14, 2016. 2016.

Surface Tension#

A. Mulero, I. Cachadiña, and M. I. Parra. Recommended Correlations for the Surface Tension of Common Fluids. J. Phys. Chem. Ref. Data, 41(4):043105–1:13, 2012. doi:10.1063/1.4768782.

Molecular Structure#

R22 — 3D conformer (interactive: click and drag to rotate)

Fluid Information#

Parameter, Value

General

Molar mass [kg/mol]

0.086468

CAS number

75-45-6

ASHRAE class

A1

Formula

CClF2H

Acentric factor

0.22082

InChI

InChI=1S/CHClF2/c2-1(3)4/h1H

InChIKey

VOPWNXZWBYDODV-UHFFFAOYSA-N

SMILES

C(F)(F)Cl

ChemSpider ID

6132

Limits

Maximum temperature [K]

550.0

Maximum pressure [Pa]

60000000.0

Triple point

Triple point temperature [K]

115.73

Triple point pressure [Pa]

0.3794747321972858

Critical point

Critical point temperature [K]

369.2950000080274

Critical point density [kg/m3]

523.842167023752

Critical point density [mol/m3]

6058.22000073729

Critical point pressure [Pa]

4990000.000456738

REFPROP Validation Data#

Note

This figure compares the results generated from CoolProp and those generated from REFPROP. They are all results obtained in the form \(Y(T,\rho)\), where \(Y\) is the parameter of interest and which for all EOS is a direct evaluation of the EOS

You can download the script that generated the following figure here: (link to script), right-click the link and then save as… or the equivalent in your browser. You can also download this figure as a PDF.

../../_images/R22.png

Consistency Plots#

The following figure shows all the flash routines that are available for this fluid. A red + is a failure of the flash routine, a black dot is a success. Hopefully you will only see black dots. The red curve is the maximum temperature curve, and the blue curve is the melting line if one is available for the fluid.

In this figure, we start off with a state point given by T,P and then we calculate each of the other possible output pairs in turn, and then try to re-calculate T,P from the new input pair. If we don’t arrive back at the original T,P values, there is a problem in the flash routine in CoolProp. For more information on how these figures were generated, see CoolProp.Plots.ConsistencyPlots

Note

You can download the script that generated the following figure here: (link to script), right-click the link and then save as… or the equivalent in your browser. You can also download this figure as a PDF.

../../_images/R221.png

Flash consistency (HEOS): 9 inconsistent, 41 exceptions, 0 bad-phase across 5 input pair(s).

Download full failure list (CSV)

Failing state points (sample, up to 20 per pair/class)

Pair

Class

Region

P [Pa]

T [K]

In1

Val1

In2

Val2

Error

DmolarP

INCONSISTENT

1phase

0.621761

116.83

Dmolar

19873.1

P

0.621813

DmolarP

INCONSISTENT

1phase

1.00865

116.83

Dmolar

19873.1

P

1.00859

DmolarP

INCONSISTENT

1phase

1.6363

116.83

Dmolar

19873.1

P

1.63573

DmolarP

INCONSISTENT

1phase

6.98585

127.937

Dmolar

19537.4

P

6.98559

DmolarSmolar

INCONSISTENT

1phase

1.00865

116.83

Dmolar

19873.1

Smolar

7.46053

DmolarUmolar

INCONSISTENT

1phase

0.621761

116.83

Dmolar

19873.1

Umolar

2661.72

HmolarSmolar

EXCEPTION

2phase

61.4514

143.211

Hmolar

5094.43

Smolar

26.2391

Inputs in Brent [115.730000,368.800000] do not bracket the root. Function values are [-259.946357,-10046828129510490.000000]

HmolarSmolar

EXCEPTION

2phase

4727.65

182.931

Hmolar

8740.67

Smolar

48.7095

Inputs in Brent [115.730000,367.900000] do not bracket the root. Function values are [-1305.693219,-3526645177189246.500000]

HmolarSmolar

EXCEPTION

2phase

30145

209.412

Hmolar

11177.2

Smolar

61.1402

Inputs in Brent [115.730000,369.200000] do not bracket the root. Function values are [-2303.576434,-16796193854243566.000000]

HmolarSmolar

EXCEPTION

2phase

62894.3

222.652

Hmolar

12407.1

Smolar

66.8258

Inputs in Brent [115.730000,368.000000] do not bracket the root. Function values are [-2875.475226,-3935536400285429.000000]

HmolarSmolar

EXCEPTION

2phase

119336

235.892

Hmolar

13652.2

Smolar

72.2429

Inputs in Brent [115.730000,367.900000] do not bracket the root. Function values are [-3493.724576,-3526645169135995.000000]

HmolarSmolar

EXCEPTION

2phase

209537

249.133

Hmolar

14919

Smolar

77.4439

Inputs in Brent [115.730000,364.900000] do not bracket the root. Function values are [-4158.570067,-228972116410209.343750]

HmolarSmolar

EXCEPTION

2phase

7.18609

129.97

Hmolar

5215.22

Smolar

27.6152

Inputs in Brent [115.730000,368.900000] do not bracket the root. Function values are [-221.473376,-11388814027730142.000000]

HmolarSmolar

EXCEPTION

2phase

61.4514

143.211

Hmolar

6395.59

Smolar

35.3247

Inputs in Brent [115.730000,369.100000] do not bracket the root. Function values are [-509.623975,-14724483445017172.000000]

HmolarSmolar

EXCEPTION

2phase

347.965

156.451

Hmolar

7575.38

Smolar

42.4453

Inputs in Brent [115.730000,365.200000] do not bracket the root. Function values are [-865.343499,-289493646997557.812500]

HmolarSmolar

EXCEPTION

2phase

1444.79

169.691

Hmolar

8755.6

Smolar

49.0641

Inputs in Brent [115.730000,366.200000] do not bracket the root. Function values are [-1279.583981,-668124459641656.000000]

HmolarSmolar

EXCEPTION

2phase

4727.65

182.931

Hmolar

9936.02

Smolar

55.2439

Inputs in Brent [115.730000,368.400000] do not bracket the root. Function values are [-1744.813645,-6201288717045071.000000]

HmolarSmolar

EXCEPTION

2phase

12847.4

196.172

Hmolar

11117.7

Smolar

61.0432

Inputs in Brent [115.730000,365.700000] do not bracket the root. Function values are [-2255.343625,-434945937811092.875000]

HmolarSmolar

EXCEPTION

2phase

62894.3

222.652

Hmolar

13497.9

Smolar

71.7251

Inputs in Brent [115.730000,366.700000] do not bracket the root. Function values are [-3399.310383,-1051993663691824.125000]

HmolarSmolar

EXCEPTION

2phase

119336

235.892

Hmolar

14705.8

Smolar

76.7093

Inputs in Brent [115.730000,364.000000] do not bracket the root. Function values are [-4030.416820,-117819445083748.265625]

HmolarSmolar

EXCEPTION

2phase

0.479079

116.73

Hmolar

5405.4

Smolar

30.965

Inputs in Brent [115.730000,365.900000] do not bracket the root. Function values are [-23.983241,-514980751027744.562500]

HmolarSmolar

EXCEPTION

2phase

7.18609

129.97

Hmolar

6553.39

Smolar

37.9112

Inputs in Brent [115.730000,367.800000] do not bracket the root. Function values are [-368.090517,-3164992098466942.500000]

HmolarSmolar

EXCEPTION

2phase

61.4514

143.211

Hmolar

7696.74

Smolar

44.4103

Inputs in Brent [115.730000,367.400000] do not bracket the root. Function values are [-759.301593,-2082593284621097.000000]

HmolarSmolar

EXCEPTION

2phase

347.965

156.451

Hmolar

8840.51

Smolar

50.5318

Inputs in Brent [115.730000,362.200000] do not bracket the root. Function values are [-1194.630373,-36151391457384.101562]

HmolarSmolar

EXCEPTION

2phase

1444.79

169.691

Hmolar

9985.53

Smolar

56.3121

Inputs in Brent [115.730000,365.100000] do not bracket the root. Function values are [-1670.696589,-267515652238087.000000]

HmolarSmolar

EXCEPTION

2phase

4727.65

182.931

Hmolar

11131.4

Smolar

61.7783

Inputs in Brent [115.730000,367.900000] do not bracket the root. Function values are [-2183.934072,-3526645172716813.000000]

SmolarT

INCONSISTENT

1phase

1.6363

116.83

Smolar

7.46053

T

116.83

SmolarT

INCONSISTENT

1phase

0.621761

116.83

Smolar

7.46053

T

116.83

SmolarT

INCONSISTENT

1phase

2.65449

116.83

Smolar

7.46053

T

116.83

Superancillary Plots#

The following figure shows the accuracy of the superancillary functions relative to extended precision calculations carried out in C++ with the teqp library. The results of the iterative calculations with REFPROP and CoolProp are also shown.

Note

You can download the script that generated the following figure here: (link to script), right-click the link and then save as… or the equivalent in your browser. You can also download this figure as a PDF.

../../_images/R222.png