FC-14(R14)291

2.31 FC-14(R14)
All equations for FC-14(R14) are based on the Table from Thermophysical properties of refrigerants by Platzer
et al.[1].

2.31.1 Temperature Scale
International practical temperature scale 1968 (IPTS-1968)

2.31.2 The Names of Substance, Library File and Single Shot Program
Name of Substance:
Library File for UNIX:
Library File for DOS,Windows95/NT:
Single Shot Program for UNIX:
Single Shot Program for DOS,Windows95/NT:

FC-14, R14, Refrigerant 14, Freon 14,
Carbontetraﬂuoride
libjr14.a
JR14.LIB
r14-ssR14-SS.EXE

2.31.3 Important Constants and Others
Molecular Formula:
Relative Molecular Mass:
Gas Constant:

CF488.010
94.4723 J/(kg·K)

Critical Constants:
Critical Pressure:
Critical Temperature:
Critical Speciﬁc Volume:

3.7500×10 6Pa (37.500 bar)
227.51 K (−45.64 ◦ C)
1.5982×10 −3m3 /kg

Reference State:
At 0◦ C, 1.0000 kJ/(kg·K) and 200.00 kJ/kg are assigned to the speciﬁc entropy and the speciﬁc enthalpy ofsaturated liquid, respectively.

2.31.4 Formula
Equation of State:
The Bender equation of state (II·3·1) in reference [1], which is in a function from of Z = Z(ρ, T ). Here Z=compressibility, ρ=density and T =temperature.
Vapor Pressure:
Equation (20) in reference [1].
Properties at Vapor-Liquid Equilibrium:saturated state: The Benderequation of state is utilized to obtaining saturated speciﬁc volume by the aid of
Maxwell’s criterion according to the author’s recommendation. The Bender equation of state shows unreasonablebehavior near the critical point. This temperature range is evaluated by Tc ± 1 K. Therefore, in the temperature
range and above the critical pressure, the values of u, h and s would include some uncertainity. Also, in theranges of psat (Tc − 1K) < p < psat (Tc + 1K) and v (Tc − 1K) < v < v (Tc − 1K), the calculated values ofp, v, T, cp , cv , isentropic exponent, Laplace coeﬃcient, Prandtl number, velocity of sound and dryness fraction ofwet vapor would have some uncertainity. Equations (2), (3), and (5) for speciﬁc enthalpy, speciﬁc entropy andisobaric speciﬁc heat, respectively. However, the sign of the last integration term in Equation (2) for uTu(T, ρ) = h0 − RT0 +T0(c0p − R)dT +ρT0∂p∂T−pρdρρ2292

P-PROPATH: Pure Substances and Mixtures with Fixed Composition

has been corrected toTu(T, ρ) = h0 − RT0 +(c0p − R)dT −T0

ρT0∂p
∂T


−pρdρ.
ρ2However, the coeﬃcients of the ideal gas state heat capacity equation (15) (d2 ∼ d5 ) are reviced by kind
information from the authors. The correct values are the followings.
d2 = 8.285805E − 6,d3 = 8.405900E − 6,

d4 = −1.787524E − 8,d5 = 1.149856E − 11Transport Properties:
Thermal conductivity from reference[2].

References[1] B.Platzer, A.Polt and G.Maurer, Thermophysical Properties of Refrigerants (1990), Springer-Verlag[2] Thermophysical Properties of Refrigerants(1976), 22 ASHRAE

FC-14(R14)293
Table II–2.31–1

No.
194
8A
8B
82

Name ofFunction
AIPPT(P,T)
AJTPT(P,T)
AKPD(P)AKPDD(P)AKPT(P,T)

FC-14(R-14) Function

Function and Argument(s)AKPT: Isentropic Exponent [–]P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦C]

Range of Argument(s)600×103 ≤P≤50×106 [Pa]110≤T≤620 [K]6≤P≤500 [bar]−163.15≤T≤346.85 [◦ C]

8C
8D
23
4

AKTD(T)
AKTDD(T)
ALAPP(P)
ALAPT(T)
ALHP(P)

5

ALHT(T)

6

ALMPD(P)7

ALMPDD(P)8

ALMPT(P,T)

9

ALMTD(T)10

ALMTDD(T)111213
14
15
92
9091
93
16

AMUPD(P)AMUPDD(P)AMUPT(P,T)
AMUTD(T)AMUTDD(T)BPPT(P,T)
BSPT(P,T)
BTPT(P,T)
BVPT(P,T)
CPPD(P)

17CPPDD(P)18

CPPT(P,T)

19

CPTD(T)

ALHP: Latent Heat of Vaporization [J/kg]
P∗: Pressure [Pa], [bar]ALHT: Latent Heat of Vaporization [J/kg]
T∗: Temperature [K], [◦C]
ALMPD: Thermal Conductivity of Saturated
Liquid [W/(m·K)]
P∗: Pressure [Pa], [bar]
ALMPDD: Thermal Conductivity of Saturated
Vapor [W/(m·K)]
T∗: Temperature [K], [◦C]
ALMPT: Thermal Conductivity at Ordinary
Pressure [W/(m·K)]
P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦C]
ALMTD: Thermal Conductivity of SaturatedLiquid [W/(m·K)]
T∗: Temperature [K], [◦C]
ALMTDD: Thermal Conductivity of Saturated
Vapor [W/(m·K)]
T∗: Temperature [K], [◦C]

1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]
69.7×103 ≤P≤2.1863×106 [Pa]0.697≤P≤21.863 [bar]CPPD: Isobaric Speciﬁc Heat of Saturated
Liquid [J/(kg·K)]
P∗: Pressure [Pa], [bar]
CPPDD: Isobaric Speciﬁc Heat of Saturated
Vapor [J/(kg·K)]
P∗: Pressure [Pa], [bar]CPPT: Isobaric Speciﬁc Heat [J/(kg·K)]
P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦C]

1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]CPTD: Isobaric Speciﬁc Heat of Saturated
Liquid [J/(kg·K)]
T∗: Temperature [K], [◦C]

93.67×103 ≤P≤1.5522×106 [Pa]0.9367≤P≤15.522 [bar]P=Dummy144≤T≤278 [K]−129.15≤T≤4.85 [◦ C]
140≤T≤210 [K]−133.15≤T≤−63.15 [◦ C]
144≤T≤200 [K]−129.15≤T≤−73.15 [◦ C]

1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]600×103 ≤P≤50×106 [Pa]110≤T≤620 [K]6≤P≤500 [bar]−163.15≤T≤346.85 [◦ C]
105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]

294

P-PROPATH: Pure Substances and Mixtures with Fixed Composition
Table II–2.31–1

No.
20

Name ofFunction
CPTDD(T)21

CRP(‘A’)

7A
76

CVPD(P)
CVPDD(P)77

CVPT(P,T)

FC-14(R-14) Function (cont’d)

Function and Argument(s)Range of Argument(s)CPTDD: Isobaric Speciﬁc Heat of Saturated
Vapor [J/(kg·K)]
T∗: Temperature [K], [◦C]
CRP: Critical Constants
H: ‘A’=‘H’: 0.3266×106 [J/kg] Speciﬁc EnthalpyP∗: ‘A’=‘P’: 3.750×106 [Pa], 37.50 [bar] Pressure
S: ‘A’=‘S’: 1.678×103 [J/(kg·K)] Speciﬁc EntropyT∗: ‘A’=‘T’: 227.51 [K], −45.64 [◦ C] Temperature
V: ‘A’=‘V’: 1.598×10−3 [m3 /kg] Speciﬁc Volume

105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦C]

CVPDD: Isochoric Speciﬁc Heat of Saturated
Vapor [J/(kg·K)]
P∗: Pressure [Pa], [bar]CVPT: Isochoric Speciﬁc Heat [J/(kg·K)]
P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦C]

1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]one of ‘H’, ‘P’, ‘S’, ‘T’ and ‘V’

600×103 ≤P≤50×106 [Pa]110≤T≤620 [K]6≤P≤500 [bar]−163.15≤T≤346.85 [◦ C]

7B
78

CVTD(T)
CVTDD(T)

2A
2B
22
2C
2D
89

EPSPD(P)EPSPDD(P)EPSPT(P,T)
EPSTD(T)EPSTDD(T)FC(‘A’)

9A
96
95
9B
97
23

GAMPD(P)GAMPDD(P)GAMPT(P,T)
GAMTD(T)GAMTDD(T)HPD(P)

24

HPDD(P)71

HPS(P,S)

25

HPT(P,T)

26

HPX(P,X)

27

HTD(T)28

HTDD(T)

CVTDD: Isochoric Speciﬁc Heat of SaturatedVapor [J/(kg·K)]
T∗: Temperature [K], [◦C]

105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦C]

FC: Fundamental Constants
M: ‘A’=‘M’: 88.010 Relative Molecular Mass
R: ‘A’=‘R’: 94.472 [J/(kg·K)] Gas Constant

one of ‘M’ and ‘R’

HPD: Speciﬁc Enthalpy of Saturated Liquid [J/kg]
P∗: Pressure [Pa], [bar]HPDD: Speciﬁc Enthalpy of Saturated Vapor [J/kg]
P∗: Pressure [Pa], [bar]HPS: Speciﬁc Enthalpy [J/kg]
P∗: Pressure [Pa], [bar]S: Speciﬁc Entropy [J/(kg·K)]

1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]600×103 ≤P≤50×106 [Pa]SPT(P,110K)≤S≤
SPT(P,620K) [J/(kg·K)]

HPT: Speciﬁc Enthalpy [J/kg]
P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦C]

HPX: Speciﬁc Enthalpy of Mixture [J/kg]
P∗: Pressure [Pa], [bar]
X: Dryness Fraction [–]HTD: Speciﬁc Enthalpy of Saturated Liquid [J/kg]
T∗: Temperature [K], [◦C]HTDD: Speciﬁc Enthalpy of Saturated Vapor [J/kg]
T∗: Temperature [K], [◦C]

6≤P≤500 [bar]SPT(P,−163.15◦ C)≤S≤
SPT(P,346.85◦ C) [J/(kg·K)]
600×103 ≤P≤50×106 [Pa]110≤T≤620 [K]6≤P≤500 [bar]−163.15≤T≤346.85 [◦ C]
1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]0≤X≤1.0 [–]105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦C]
105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦C]

FC-14(R14)295
Table II–2.31–1

No.
29

Name ofFunction
HTX(T,X)

84

IDENTF(‘A’)

66
68
8586818788
99
30

PLDT(T)
PMLT(T)
PRPD(P)PRPDD(P)
PRPT(P,T)
PRTD(T)
PRTDD(T)PSBT(T)
PST(T)72
73
31

PSTD(T)
PSTDD(T)SIGP(P)

32

SIGT(T)

33

SPD(P)34

SPDD(P)35

SPT(P,T)36

SPX(P,X)

37

STD(T)38

STDD(T)

39

STX(T,X)

67
69
64

TLDP(P)
TMLP(P)
TPH(P,H)

FC-14(R-14) Function (cont’d)

Function and Argument(s)Range of Argument(s)HTX: Speciﬁc Enthalpy of Mixture [J/kg]
T∗: Temperature [K], [◦ C]
X: Dryness Fraction [–]IDENTF: CHARACTER TYPE FUNCTION
for Identiﬁcation of Substance (Length 20)
C: ‘A’=‘C’: ‘CF4’ Molecular Formula
S: ‘A’=‘S’: ‘FC-14(R-14)’ Name of Substance
V: ‘A’=‘V’: ‘10.1’ Version Number

105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]
0≤X≤1.0 [–]one of ‘C’, ‘S’ and ‘V’

PST∗: Saturation Pressure [Pa], [bar]T∗: Temperature [K], [◦ C]

110≤T≤227.51 [K]−163.15≤T≤−45.64 [◦ C]

SIGP: Surface Tension [N/m]P∗: Pressure [Pa], [bar]PST(110K)≤P≤3.75×106 [Pa](∼1.55×106 )PST(−163.15 ◦ C)≤P≤37.5 [bar](∼15.5)
110≤T≤227.51 [K]−163.15≤T≤−45.64 [◦ C]
1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]

SIGT: Surface Tension [N/m]T∗: Temperature [K], [◦ C]
SPD: Speciﬁc Entropy of Saturated Liquid[J/(kg·K)]
P∗: Pressure [Pa], [bar]SPDD: Speciﬁc Entropy of Saturated Vapor[J/(kg·K)]
P∗: Pressure [Pa], [bar]SPT: Speciﬁc Entropy [J/(kg·K)]
P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦ C]

SPX: Speciﬁc Entropy of Mixture [J/(kg·K)]
P∗: Pressure [Pa], [bar]
X: Dryness Fraction [–]STD: Speciﬁc Entropy of Saturated Liquid[J/(kg·K)]
T∗: Temperature [K], [◦ C]
STDD: Speciﬁc Entropy of Saturated Vapor[J/(kg·K)]
T∗: Temperature [K], [◦ C]
STX: Speciﬁc Entropy of Mixture [J/(kg·K)]
T∗: Temperature [K], [◦ C]
X: Dryness Fraction [–]TPH∗: Temperature [K], [◦ C]
P∗: Pressure [Pa], [bar]H: Speciﬁc Enthalpy [J/kg]

1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]600×103 ≤P≤50×106 [Pa]110≤T≤620 [K]6≤P≤500 [bar]−163.15≤T≤346.85 [◦ C]
1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]0≤X≤1.0 [–]105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]
105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]
105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]
0≤X≤1.0 [–]600×103 ≤P≤50×106 [Pa]
HPT(P,110K)≤H≤
HPT(P,620K) [J/kg]
6≤P≤500 [bar]HPT(P,−163.15◦ C)≤H≤
HPT(P,346.85◦ C) [J/kg]

296

P-PROPATH: Pure Substances and Mixtures with Fixed Composition
Table II–2.31–1

No.
6H
65

Name ofFunction
TPH2(P,H)
TPS(P,S)

FC-14(R-14) Function (cont’d)

Function and Argument(s)TPS∗: Temperature [K], [◦C]P∗: Pressure [Pa], [bar]S: Speciﬁc Entropy [J/(kg·K)]

Range of Argument(s)600×103 ≤P≤50×106 [Pa]SPT(P,110K)≤S≤
SPT(P,620K) [J/(kg·K)]
6≤P≤500 [bar]SPT(P,−163.15◦ C)≤S≤
SPT(P,346.85◦ C) [J/(kg·K)]

6S
98
70

TPS2(P,S)TPSEUP(P)TPV(P,V)

TPV∗: Temperature [K], [◦ C]
P∗: Pressure [Pa], [bar]V: Speciﬁc Volume [m3 /kg]

600×103 ≤P≤50×106 [Pa]VPT(P,110K)≤V≤
VPT(P,620K) [m3 /kg]
6≤P≤500 [bar]VPT(P,−163.15◦ C)≤V≤
VPT(P,346.85◦C) [m3 /kg]

41
100
40

TRPL(‘A’)
TSBP(P)
TSP(P)

74
75
42

TSPD(P)TSPDD(P)UPD(P)43

UPDD(P)79

UPS(P,S)

44

UPT(P,T)45

UPX(P,X)

46

UTD(T)

47

UTDD(T)

48

UTX(T,X)

TSP∗: Saturation Temperature [K], [◦C]P∗: Pressure [Pa], [bar]1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]UPD: Speciﬁc Internal Energy of Saturated
Liquid [J/kg]
P∗: Pressure [Pa], [bar]UPDD: Speciﬁc Internal Energy of Saturated
Vapor [J/kg]
P∗: Pressure [Pa], [bar]UPS: Speciﬁc Internal Energy [J/kg]
P∗: Pressure [Pa], [bar]S: Speciﬁc Entropy [J/(kg·K)]

1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]

UPT: Speciﬁc Internal Energy [J/kg]
P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦ C]

UPX: Speciﬁc Internal Energy of Mixture [J/kg]
P∗: Pressure [Pa], [bar]
X: Dryness Fraction [–]UTD: Speciﬁc Internal Energy of Saturated
Liquid [J/kg]
T∗: Temperature [K], [◦ C]
UTDD: Speciﬁc Internal Energy of Saturated
Vapor [J/kg]
T∗: Temperature [K], [◦ C]
UTX: Speciﬁc Internal Energy of Mixture [J/kg]
T∗: Temperature [K], [◦ C]
X: Dryness Fraction [–]1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]600×103 ≤P≤50×106 [Pa]SPT(P,110K)≤S≤
SPT(P,620K) [J/(kg·K)]
6≤P≤500 [bar]SPT(P,−163.15◦ C)≤S≤
SPT(P,346.85◦ C) [J/(kg·K)]
600×103 ≤P≤50×106 [Pa]110≤T≤620 [K]6≤P≤500 [bar]−163.15≤T≤346.85 [◦ C]
1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]0≤X≤1.0 [–]110≤T≤227.51 [K]−163.15≤T≤−45.64 [◦C]
110≤T≤227.51 [K]−163.15≤T≤−45.64 [◦C]
105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦C]
0≤X≤1.0 [–]FC-14(R14)297
Table II–2.31–1

No.
49

Name ofFunction
VPD(P)50

VPDD(P)80

VPS(P,S)

51

VPT(P,T)52

VPX(P,X)

53

VTD(T)54

VTDD(T)

55

VTX(T,X)

8E
8F
83

WPD(P)WPDD(P)
WPT(P,T)

FC-14(R-14) Function (cont’d)

Function and Argument(s)VPD: Speciﬁc Volume of Saturated Liquid [m3 /kg]P∗: Pressure [Pa], [bar]VPDD: Speciﬁc Volume of Saturated Vapor [m3 /kg]P∗: Pressure [Pa], [bar]VPS: Speciﬁc Volume [m3 /kg]P∗: Pressure [Pa], [bar]S: Speciﬁc Entropy [J/(kg·K)]

VPT: Speciﬁc Volume [m3 /kg]P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦C]
VPX: Speciﬁc Volume of Mixture [m3 /kg]P∗: Pressure [Pa], [bar]
X: Dryness Fraction [–]VTD: Speciﬁc Volume of Saturated Liquid [m3 /kg]
T∗: Temperature [K], [◦C]
VTDD: Speciﬁc Volume of Saturated Vapor [m3 /kg]
T∗: Temperature [K], [◦C]
VTX: Speciﬁc Volume of Mixture [m3 /kg]
T∗: Temperature [K], [◦C]
X: Dryness Fraction [–]WPT: Velocity of Sound [m/s]P∗: Pressure [Pa], [bar]T∗: Temperature [K], [◦C]

Range of Argument(s)1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]600×103 ≤P≤50×106 [Pa]SPT(P,110K)≤S≤
SPT(P,620K) [J/(kg·K)]
6≤P≤500 [bar]SPT(P,−163.15◦ C)≤S≤
SPT(P,346.85◦ C) [J/(kg·K)]
600×103 ≤P≤50×106 [Pa]110≤T≤620 [K]6≤P≤500 [bar]−163.15≤T≤346.85 [◦ C]
1.69×103 ≤P≤3.75×106 [Pa]0.0169≤P≤37.5 [bar]0≤X≤1.0 [–]105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]
105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]
105≤T≤227.51 [K]−168.15≤T≤−45.64 [◦ C]
0≤X≤1.0 [–]600×103 ≤P≤50×106 [Pa]110≤T≤620 [K]6≤P≤500 [bar]−163.15≤T≤346.85 [◦ C]

8G
8H
56

WTD(T)WTDD(T)
XPH(P,H)57

XPS(P,S)58

XPU(P,U)59

XPV(P,V)60

XTH(T,H)

61

XTS(T,S)62

XTU(T,U)63

XTV(T,V)

XPH: Dryness Fraction [–]P∗: Pressure [Pa], [bar]H: Speciﬁc Enthalpy of Mixture [J/kg]
XPS: Dryness Fraction [–]P∗: Pressure [Pa], [bar]S: Speciﬁc Entropy of Mixture [J/(kg·K)]
XPU: Dryness Fraction [–]P∗: Pressure [Pa], [bar]U: Speciﬁc Internal Energy of Mixture [J/kg]
XPV: Dryness Fraction [–]P∗: Pressure [Pa], [bar]V: Speciﬁc Volume of Mixture [m3 /kg]
XTH: Dryness Fraction [–]T∗: Temperature [K], [◦C]
H: Speciﬁc Enthalpy of Mixture [J/kg]
XTS: Dryness Fraction [–]T∗: Temperature [K], [◦C]
S: Speciﬁc Entropy of Mixture [J/(kg·K)]
XTU: Dryness Fraction [–]T∗: Temperature [K], [◦C]
U: Speciﬁc Internal Energy of Mixture [J/kg]
XTV: Dryness Fraction [–]T∗: Temperature [K], [◦C]
V: Speciﬁc Volume of Mixture [m3 /kg]

1.69×103 ≤P<3.75×106 [Pa]0.0169≤P<37.5 [bar]HPD(P)≤H≤HPDD(P) [J/kg]
1.69×103 ≤P<3.75×106 [Pa]0.0169≤P<37.5 [bar]SPD(P)≤S≤SPDD(P) [J/(kg·K)]
1.69×103 ≤P<3.75×106 [Pa]0.0169≤P<37.5 [bar]UPD(P)≤U≤UPDD(P) [J/kg]
1.69×103 ≤P<3.75×106 [Pa]0.0169≤P<37.5 [bar]VPD(P)≤V≤VPDD(P) [m3 /kg]
105≤T<227.51 [K]−168.15≤T<−45.64 [◦ C]
HTD(T)≤H≤HTDD(T) [J/kg]
105≤T<227.51 [K]−168.15≤T<−45.64 [◦ C]
STD(T)≤S≤STDD(T) [J/(kg·K)]
105≤T<227.51 [K]−168.15≤T<−45.64 [◦ C]
UTD(T)≤U≤UTDD(T) [J/kg]
105≤T<227.51 [K]−168.15≤T<−45.64 [◦ C]
VTD(T)≤V≤VTDD(T) [m3/kg]