HeavyWater#

References#

Equation of State#

S. Herrig, M. Thol, R. Span, A.H. Harvey, and E.W. Lemmon. A Reference Equation of State for Heavy Water. J. Phys. Chem. Ref. Data, 2019.

Thermal Conductivity#

IAPWS. Revised Release on Viscosity and Thermal Conductivity of Heavy Water Substance. 2007.

Viscosity#

IAPWS. Revised Release on Viscosity and Thermal Conductivity of Heavy Water Substance. 2007.

Surface Tension#

IAPWS. IAPWS Release on Surface Tension of Heavy Water Substance. 1994.

Aliases#

D2O, HEAVYWATER

Molecular Structure#

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

Fluid Information#

Parameter, Value

General

Molar mass [kg/mol]

0.020027508

CAS number

7789-20-0

ASHRAE class

UNKNOWN

Formula

D2O

Acentric factor

0.3642190223170594

InChI

InChI=1S/H2O/h1H2/i/hD2

InChIKey

XLYOFNOQVPJJNP-ZSJDYOACSA-N

SMILES

[2H]O[2H]

ChemSpider ID

23004

Limits

Maximum temperature [K]

825.0

Maximum pressure [Pa]

1200000000.0

Triple point

Triple point temperature [K]

276.969

Triple point pressure [Pa]

661.5871366710799

Critical point

Critical point temperature [K]

643.8469999831403

Critical point density [kg/m3]

355.99964379748695

Critical point density [mol/m3]

17775.533720794767

Critical point pressure [Pa]

21661830.99818297

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/HeavyWater.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/HeavyWater1.png

Flash consistency (HEOS): 65 inconsistent, 2 exceptions, 0 bad-phase across 2 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

18543.9

278.069

Dmolar

55196.9

P

18543.9

DmolarP

INCONSISTENT

1phase

2926.66

278.069

Dmolar

55196.5

P

2926.66

DmolarP

INCONSISTENT

1phase

6124.97

278.069

Dmolar

55196.6

P

6124.97

DmolarP

INCONSISTENT

1phase

2023.05

278.069

Dmolar

55196.5

P

2023.05

DmolarP

INCONSISTENT

1phase

8860.74

278.069

Dmolar

55196.7

P

8860.74

DmolarP

INCONSISTENT

1phase

12818.5

278.069

Dmolar

55196.8

P

12818.5

DmolarP

INCONSISTENT

1phase

4233.88

278.069

Dmolar

55196.5

P

4233.88

DmolarP

INCONSISTENT

1phase

56143.6

278.069

Dmolar

55198

P

56143.6

DmolarP

INCONSISTENT

1phase

26826.8

278.069

Dmolar

55197.2

P

26826.8

DmolarP

INCONSISTENT

1phase

2.06612e+07

278.069

Dmolar

55772.2

P

2.06612e+07

DmolarP

INCONSISTENT

1phase

2.25403e+06

278.069

Dmolar

55260.5

P

2.25403e+06

DmolarP

INCONSISTENT

1phase

81220.6

278.069

Dmolar

55198.7

P

81220.6

DmolarP

INCONSISTENT

1phase

245903

278.069

Dmolar

55203.4

P

245903

DmolarP

INCONSISTENT

1phase

169980

278.069

Dmolar

55201.2

P

169980

DmolarP

INCONSISTENT

1phase

38809.1

278.069

Dmolar

55197.5

P

38809.1

DmolarP

INCONSISTENT

1phase

355738

278.069

Dmolar

55206.5

P

355738

DmolarP

INCONSISTENT

1phase

514631

278.069

Dmolar

55211.1

P

514631

DmolarP

INCONSISTENT

1phase

1.55809e+06

278.069

Dmolar

55240.7

P

1.55809e+06

DmolarP

INCONSISTENT

1phase

744495

278.069

Dmolar

55217.6

P

744495

DmolarP

INCONSISTENT

1phase

1.07703e+06

278.069

Dmolar

55227

P

1.07703e+06

SmolarT

EXCEPTION

1phase

8.29498e+08

278.069

Smolar

-4.45481

T

278.069

The molar density of -7061.307072 mol/m3 is below the minimum of 0.000000 mol/m3

SmolarT

EXCEPTION

1phase

1.2e+09

278.069

Smolar

-6.76924

T

278.069

The molar density of -37131.793955 mol/m3 is below the minimum of 0.000000 mol/m3

SmolarT

INCONSISTENT

1phase

6.25538e+07

278.069

Smolar

0.347578

T

278.069

SmolarT

INCONSISTENT

1phase

4.32402e+07

278.069

Smolar

0.3686

T

278.069

SmolarT

INCONSISTENT

1phase

2.98897e+07

278.069

Smolar

0.371359

T

278.069

SmolarT

INCONSISTENT

1phase

2.06612e+07

278.069

Smolar

0.367038

T

278.069

SmolarT

INCONSISTENT

1phase

1.4282e+07

278.069

Smolar

0.360867

T

278.069

SmolarT

INCONSISTENT

1phase

9.87242e+06

278.069

Smolar

0.355009

T

278.069

SmolarT

INCONSISTENT

1phase

6.82429e+06

278.069

Smolar

0.350177

T

278.069

SmolarT

INCONSISTENT

1phase

4.71728e+06

278.069

Smolar

0.346454

T

278.069

SmolarT

INCONSISTENT

1phase

3.26081e+06

278.069

Smolar

0.343696

T

278.069

SmolarT

INCONSISTENT

1phase

2.25403e+06

278.069

Smolar

0.341701

T

278.069

SmolarT

INCONSISTENT

1phase

1.55809e+06

278.069

Smolar

0.340278

T

278.069

SmolarT

INCONSISTENT

1phase

1.07703e+06

278.069

Smolar

0.339275

T

278.069

SmolarT

INCONSISTENT

1phase

744495

278.069

Smolar

0.338571

T

278.069

SmolarT

INCONSISTENT

1phase

514631

278.069

Smolar

0.33808

T

278.069

SmolarT

INCONSISTENT

1phase

355738

278.069

Smolar

0.337738

T

278.069

SmolarT

INCONSISTENT

1phase

245903

278.069

Smolar

0.337501

T

278.069

SmolarT

INCONSISTENT

1phase

169980

278.069

Smolar

0.337336

T

278.069

SmolarT

INCONSISTENT

1phase

117498

278.069

Smolar

0.337222

T

278.069

SmolarT

INCONSISTENT

1phase

81220.6

278.069

Smolar

0.337143

T

278.069

SmolarT

INCONSISTENT

1phase

56143.6

278.069

Smolar

0.337089

T

278.069

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/HeavyWater2.png