Moist Air as Real Fluids

481

2.2 Moist Air as Real Fluids

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

2.2.2 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:

Moist Air
libjmarf.a
JMARF.LIB
marf-ss
MARF–SS.EXE

2.2.3 Reference State and Formula
The speciﬁc enthalpy and entropy of dry air are both assigned the value zero at 101325 Pa (1 atm) and 273.15
K (0◦ C). The speciﬁc enthalpy and entropy of saturated liquid water are both assigned the value zero at the
triple point (273.16 K, 0.01◦C).
All equations for the thermodynamic properties of dry air, saturated moist air, and the saturated phases ofwater have been cited from references [1] and [2].

References[1] R.W.Hyland and A.Wexler, ASHRAE Transactions 89(2A), (1983), pp.520-535[2] R.W.Hyland and A.Wexler, ASHRAE Transactions 89(2A), (1983), pp.500-519

482

A-PROPATH: Moist Air
Table III–2.2–1

No.
1

2

3

4

Name of
Function
DPA(P,T,WB)

DPC(P,T,RH)

DPD(P,T,X)

DPE(P,T,H)

5

DPF(P,X,H)

6

DSA(P,T,WB)

7

8

9

DSB(P,T,DP)

DSC(P,T,RH)

DSD(P,T,X)

Moist Air as Real Fluid Function

Function and Argument(s)Range of Argument(s)DPA: Dew Point Temperature [K]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
WB∗: Wet-Bulb Temperature [K], [◦ C]

PST/0.99≤P≤5.0×106 [Pa]173.15≤WB≤T≤473.15 [K]

DPC: Dew Point Temperature [K]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
RH: Relative Humidity [–]DPD: Dew Point Temperature [K]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
X: Humidity Ratio [kg/kgDA ]DPE: Dew Point Temperature [K]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
H: Speciﬁc Enthalpy [J/kgDA ]DPF: Dew Point Temperature [K]P∗: Total Pressure [Pa], [bar]X: Humidity Ratio [kg/kgDA ]H: Speciﬁc Enthalpy [J/kgDA ]DSA: Degree of Saturation [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
WB∗: Wet-Bulb Temperature [K], [◦ C]
DSB: Degree of Saturation [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
DP∗: Dew Point Temperature [K], [◦ C]
DSC: Degree of Saturation [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
RH: Relative Humidity [–]DSD: Degree of Saturation [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
X: Humidity Ratio [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤WB≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
0≤RH≤1.0 [–]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]
0≤RH≤1.0 [–]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]
0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]PST/0.99≤P≤50 [bar]0≤X≤Xs [kg/kgDA ]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤WB≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤WB≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤DP≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤DP≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
0≤RH≤1.0 [–]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]
0≤RH≤1.0 [–]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]
0≤X≤Xs [kg/kgDA ]Moist Air as Real Fluids

483
Table III–2.2–1

No.
10

Name of
Function
DSE(P,T,H)

11

DSF(P,X,H)

50

ENHFAC(P,T)

89

FC(‘A’)

12

HA(P,T,WB)

13

14

15

HB(P,T,DP)

HC(P,T,RH)

HD(P,T,X)

84

IDENTF(‘A’)

49

PST(T)

Moist Air as Real Fluid Function (cont’d)

Function and Argument(s)DSE: Degree of Saturation [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
H: Speciﬁc Enthalpy [J/kgDA ]DSF: Degree of Saturation [–]P∗: Total Pressure [Pa], [bar]X: Humidity Ratio [kg/kgDA ]H: Speciﬁc Enthalpy [J/kgDA ]ENHFAC: Enhancement Factor [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]

FC: Fundamental Constants
MA: ‘A’=‘MA’:28.9645 Relative Molecular
Weight of Dry Air
MW: ‘A’=‘MW’:18.01528 Relative Molecular
Mass of Water
RA: ‘A’=‘RA’:461.520 Gas Constant of Dry Air
RW: ‘A’=‘RW’:287.055 Gas Constant of Water Vapor
HA: Speciﬁc Enthalpy [J/kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
WB∗: Wet-Bulb Temperature [K], [◦ C]
HB: Speciﬁc Enthalpy [J/kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
DP∗: Dew Point Temperature [K], [◦ C]
HC: Speciﬁc Enthalpy [J/kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
RH: Relative Humidity [–]HD: Speciﬁc Enthalpy [J/kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
X: Humidity Ratio [kg/kgDA ]IDENTF: CHARACTER TYPE FUNCTION
for Package Identiﬁcation (Length 20)
C: ‘A’=‘C’: ‘MIXTURE OF DRY AIR AND
WATER VAPOR’
S: ‘A’=‘S’: ‘MOIST AIR’ Name of Substance
V: ‘A’=‘V’: ‘10.1’ Version Number
PST: Saturation Pressure of Pure Water [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]

Range of Argument(s)PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]PST/0.99≤P≤50 [bar]0≤X≤Xs [kg/kgDA ]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
one of ‘MA’, ‘MW’, ‘RA’ and‘RW’

PST/0.99≤P≤5.0×106 [Pa]173.15≤WB≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤WB≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤DP≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤DP≤T≤200 [◦C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
0≤RH≤1.0 [–]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
0≤RH≤1.0 [–]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
0≤X≤Xs [kg/kgDA ]one of ‘C’, ‘S’ and ‘V’

173.15≤T≤473.15 [K]−100≤T≤200 [◦ C]

484

A-PROPATH: Moist Air
Table III–2.2–1

No.
22

23

24

25

Name of
Function
RHA(P,T,WB)

RHB(P,T,DP)

RHD(P,T,X)

RHE(P,T,H)

26

RHF(P,X,H)

16

RWA(P,T,WB)

17

18

19

RWB(P,T,DP)

RWC(P,T,RH)

RWD(P,T,X)

Moist Air as Real Fluid Function (cont’d)

Function and Argument(s)Range of Argument(s)RHA: Relative Humidity [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
WB∗: Wet-Bulb Temperature [K], [◦ C]

PST/0.99≤P≤5.0×106 [Pa]173.15≤WB≤T≤473.15 [K]

RHB: Relative Humidity [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
DP∗: Dew Point Temperature [K], [◦C]
RHD: Relative Humidity [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
X: Humidity Ratio [kg/kgDA ]RHE: Relative Humidity [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
H: Speciﬁc Enthalpy [J/kgDA ]RHF: Relative Humidity [–]P∗: Total Pressure [Pa], [bar]X: Humidity Ratio [kg/kgDA ]H: Speciﬁc Enthalpy [J/kgDA ]RWA: Mole Fraction of Water Vapor [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
WB∗: Wet-Bulb Temperature [K], [◦ C]
RWB: Mole Fraction of Water Vapor [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
DP∗: Dew Point Temperature [K], [◦C]
RWC: Mole Fraction of Water Vapor [–]P∗: Total Pressure [Pa], [bar ]T∗: Dry-Bulb Temperature [K], [◦C]
RH: Relative Humidity [–]RWD: Mole Fraction of Water Vapor [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
X: Humidity Ratio [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤WB≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤DP≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤DP≤T≤200 [◦C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]PST/0.99≤P≤50 [bar]0≤X≤Xs [kg/kgDA ]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤WB≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤WB≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤DP≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤DP≤T≤200 [◦C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
0≤RH≤1.0 [–]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
0≤RH≤1.0 [–]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
0≤X≤Xs [kg/kgDA ]Moist Air as Real Fluids

485
Table III–2.2–1

No.
20

Name of
Function
RWE(P,T,H)

21

RWF(P,X,H)

27

SA(P,T,WB)

28

29

30

31

SB(P,T,DP)

SC(P,T,RH)

SD(P,T,X)

SE(P,T,H)

32

SF(P,X,H)

33

TF(P,X,H)

34

VA(P,T,WB)

Moist Air as Real Fluid Function (cont’d)

Function and Argument(s)Range of Argument(s)RWE: Mole Fraction of Water Vapor [–]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
H: Speciﬁc Enthalpy [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]Ha≤H≤Hs [J/kgDA ]RWF: Mole Fraction of Water Vapor [–]P∗: Total Pressure [Pa], [bar]X: Humidity Ratio [kg/kgDA ]H: Speciﬁc Enthalpy [J/kgDA ]SA: Speciﬁc Entropy [J/(kgDA ·K)]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
WB∗: Wet-Bulb Temperature [K], [◦C]
SB: Speciﬁc Entropy [J/(kgDA ·K)]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
DP∗: Dew Point Temperature [K], [◦ C]
SC: Speciﬁc Entropy [J/(kgDA ·K)]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
RH: Relative Humidity [–]SD: Speciﬁc Entropy [J/(kgDA ·K)]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
X: Humidity Ratio [kg/kgDA ]SE: Speciﬁc Entropy [J/(kgDA ·K)]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
H: Speciﬁc Enthalpy [J/kgDA ]SF: Speciﬁc Entropy [J/(kgDA ·K)]P∗: Total Pressure [Pa], [bar]X: Humidity Ratio [kg/kgDA ]H: Speciﬁc Enthalpy [J/kgDA ]TF: Dry-Bulb Temperature [K], [◦C]
P∗: Total Pressure [Pa], [bar]X: Humidity Ratio [kg/kgDA ]H: Speciﬁc Enthalpy [J/kgDA ]VA: Speciﬁc Volume [m3 /kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
WB∗: Wet-Bulb Temperature [K], [◦C]

PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]PST/0.99≤P≤50 [bar]0≤X≤Xs [kg/kgDA ]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤WB≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤WB≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤DP≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤DP≤T≤200 [◦C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
0≤RH≤1.0 [–]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
0≤RH≤1.0 [–]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]PST/0.99≤P≤50 [bar]0≤X≤Xs [kg/kgDA ]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]PST/0.99≤P≤50 [bar]0≤X≤Xs [kg/kgDA ]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤WB≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤WB≤T≤200 [◦ C]

486

A-PROPATH: Moist Air
Table III–2.2–1

No.
35

36

37

38

Name of
Function
VB(P,T,DP)

VC(P,T,RH)

VD(P,T,X)

VE(P,T,H)

39

VF(P,X,H)40

WBB(P,T,DP)

41

42

43

WBC(P,T,RH)

WBD(P,T,X)

WBE(P,T,H)

Moist Air as Real Fluid Function (cont’d)

Function and Argument(s)Range of Argument(s)VB: Speciﬁc Volume [m3 /kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
DP∗: Dew Point Temperature [K], [◦ C]

PST/0.99≤P≤5.0×106 [Pa]173.15≤DP≤T≤473.15 [K]

VC: Speciﬁc Volume [m3 /kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
RH: Relative Humidity [–]VD: Speciﬁc Volume [m3 /kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
X: Humidity Ratio [kg/kgDA ]VE: Speciﬁc Volume [m3 /kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
H: Speciﬁc Enthalpy [J/kgDA ]VF: Speciﬁc Volume [m3 /kgDA ]P∗: Total Pressure [Pa], [bar]X: Humidity Ratio [kg/kgDA ]H: Speciﬁc Enthalpy [J/kgDA ]WBB: Wet-Bulb Temperature [K]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
DP∗: Dew Point Temperature [K], [◦ C]
WBC: Wet-Bulb Temperature [K]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
RH: Relative Humidity [–]WBD: Wet-Bulb Temperature [K]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
X: Humidity Ratio [kg/kgDA ]WBE: Wet-Bulb Temperature [K]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦C]
H: Speciﬁc Enthalpy [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤DP≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
0≤RH≤1.0 [–]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]
0≤RH≤1.0 [–]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]
0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]PST/0.99≤P≤50 [bar]0≤X≤Xs [kg/kgDA ]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤DP≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤DP≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
0≤RH≤1.0 [–]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]
0≤RH≤1.0 [–]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]
0≤X≤Xs [kg/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦C]Ha≤H≤Hs [J/kgDA ]Moist Air as Real Fluids

487
Table III–2.2–1

No.
44

Name of
Function
WBF(P,X,H)

45

XA(P,T,WB)

46

47

48

XB(P,T,DP)

XC(P,T,RH)

XE(P,T,H)

Moist Air as Real Fluid Function (cont’d)

Function and Argument(s)Range of Argument(s)WBF: Wet-Bulb Temperature [K]P∗: Total Pressure [Pa], [bar]X: Humidity Ratio [kg/kgDA ]H: Speciﬁc Enthalpy [J/kgDA ]XA: Humidity Ratio [kg/kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
WB∗: Wet-Bulb Temperature [K], [◦ C]

PST/0.99≤P≤5.0×106 [Pa]PST/0.99≤P≤50 [bar]0≤X≤Xs [kg/kgDA ]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤5.0×106 [Pa]173.15≤WB≤T≤473.15 [K]

XB: Humidity Ratio [kg/kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
DP∗: Dew Point Temperature [K], [◦C]
XC: Humidity Ratio [kg/kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
RH: Relative Humidity [–]XE: Humidity Ratio [kg/kgDA ]P∗: Total Pressure [Pa], [bar]T∗: Dry-Bulb Temperature [K], [◦ C]
H: Speciﬁc Enthalpy [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤WB≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤DP≤T≤473.15 [K]
PST/0.99≤P≤50 [bar]−100≤DP≤T≤200 [◦ C]
PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]
0≤RH≤1.0 [–]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
0≤RH≤1.0 [–]PST/0.99≤P≤5.0×106 [Pa]173.15≤T≤473.15 [K]Ha≤H≤Hs [J/kgDA ]PST/0.99≤P≤50 [bar]−100≤T≤200 [◦ C]
Ha≤H≤Hs [J/kgDA ]