ASTM D3984-19

Standard Specification for Ethane Thermophysical Property Tables

ABSTRACT
This specification establishes the formulation of ethane thermophysical property tables for use in the calculation of the pressure-volume-temperature (PVT), thermodynamic, and transport properties of gaseous and liquid ethane for process design and operations. This table will be substantially useful in mathematical models and tables for the thermophysical properties of mixtures containing ethane, such as natural gas.
SCOPE
1.1 The thermophysical property tables for ethane are for use in the calculation of the pressure-volume-temperature (PVT), thermodynamic, and transport properties of ethane for process design and operations. Tables are provided for gaseous and liquid ethane at temperatures between 92 and 600 K at pressures to 20 MPa. Two tables provide properties at the conditions of liquid-vapor equilibrium (saturation properties). A third table provides properties at selected T, p points for the equilibrium phase at those conditions. The tables were developed by the National Institute of Standards and Technology from Standard Reference Database 23, REFPROP, version 10.0.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Mar-2019
• ICS: 75.160.30 - Gaseous fuels
• Technical Committee: D03 - Gaseous Fuels
• Drafting Committee: D03.08 - Thermophysical Properties

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D3984 −19
Standard Specification for
1
Ethane Thermophysical Property Tables
This standard is issued under the fixed designation D3984; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope units, engineering units, chemical units) and additional prop-
2
erties are available with this program.
1.1 The thermophysical property tables for ethane are for
3.2 These thermophysical property tables are:
use in the calculation of the pressure-volume-temperature
3.2.1 ThermophysicalPropertiesofEthaneLiquidatVapor-
(PVT), thermodynamic, and transport properties of ethane for
Liquid Equilibrium, in SI units. See Table 1.
process design and operations. Tables are provided for gaseous
3.2.2 Thermophysical Properties of Ethane Vapor at Vapor-
and liquid ethane at temperatures between 92 and 600 K at
Liquid Equilibrium, in SI units. See Table 2.
pressures to 20 MPa. Two tables provide properties at the
3.2.3 Thermophysical Properties of Ethane Along Isobars,
conditions of liquid-vapor equilibrium (saturation properties).
in SI units. See Table 3.
A third table provides properties at selected T, p points for the
equilibrium phase at those conditions. The tables were devel-
3.3 The symbols are:
oped by the National Institute of Standards and Technology
T, temperature (K)
-1
from Standard Reference Database 23, REFPROP, version
ρ, molar density (mol·l )
-1
10.0.
H, molar enthalpy (J·mol )
-1 -1
S, molar entropy (J·K ·mol )
1.2 The values stated in SI units are to be regarded as
-1 -1
C , constant volume molar heat capacity (J·K ·mol )
standard. No other units of measurement are included in this v
-1 -1
C , constant pressure molar heat capacity (J·K ·mol )
standard. p
-1
c, speed of sound (m·s )
1.3 This international standard was developed in accor-
η, viscosity (µPa·s)
dance with internationally recognized principles on standard-
-1 -1
λ, thermal conductivity (mW·m ·K )
ization established in the Decision on Principles for the
3.4 The tabulated thermophysical properties are:
Development of International Standards, Guides and Recom-
-1
ρ, molar density (mol·l )
mendations issued by the World Trade Organization Technical
-1
H, molar enthalpy (J·mol )
Barriers to Trade (TBT) Committee.
-1 -1
S, molar entropy (J·K ·mol )
-1 -1
C , constant volume molar heat capacity (J·K ·mol )
2. Applicability
v
-1 -1
C , constant pressure molar heat capacity (J·K ·mol )
p
2.1 These tables apply directly only to pure gaseous ethane.
-1
c, speed of sound (m·s )
However, it is expected that they may find substantial use in
η, viscosity (µPa·s)
mathematical models and tables for the thermophysical prop-
-1 -1
λ, thermal conductivity (mW·m ·K )
erties of mixtures containing ethane.
4. Additional Information
3. Tables
4.1 Reference state properties are required to calculate
3.1 These tables were produced by equations from a com-
certain of the thermodynamic properties (enthalpy, entropy,
puter package, “NIST Standard Reference Database 23; Ref-
etc.) from an equation of state formulation. The reference state
erence Fluid Thermodynamic and Transport Properties Data-
properties used to generate the tables in this specification are:
base (REFPROP): Version 10.0.”Awide selection of units (SI
enthalpy, H, and entropy, S, at the Normal Boiling Point;
184.57 K and 0.10133 MPa (H = 14716 J/mol and S = 79.731
J/(mol K)). The molar mass of ethane is 30.069 g/mol.
1
This specification is under the jurisdiction of ASTM Committee D03 on
Gaseous Fuels and is the direct responsibility of Subcommittee D03.08 on
Thermophysical Properties.
2
Current edition approved April 1, 2019. Published June 2019. Originally Available from Standard Reference Data, National Institute of Standards and
approved in 1982. Last previous edition approved in 2013 as D3984 – 13. DOI: Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070,
10.1520/D3984-19. http://www.nist.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3984 − 19
TABLE 1 Thermophysical Properties of Ethane Liquid at Vapor-Liquid Equilibrium
Tp ρ HS C C c ηλ
v p
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
K MPa mol·l J·mol J·mol ·K J·mol ·K J·mol ·K m·s µPa·s mW·m ·K
90.4 1.1518E-06 21.667 -6588.5 -49.729 48.255 69.928 2008.5 1290 255.42
92 1.7410E-06 21.608 -6476.9 -48.505 47.848 69.604 1996.7 1207.2 254.17
9
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3984 − 13 D3984 − 19
Standard Specification for
1
Ethane Thermophysical Property Tables
This standard is issued under the fixed designation D3984; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 The thermophysical property tables for ethane are for use in the calculation of the pressure-volume-temperature (PVT),
thermodynamic, and transport properties of ethane for process design and operations. Tables are provided for gaseous and liquid
ethane at temperatures between 92 and 600 K 92 and 600 K at pressures to 20 MPa. 20 MPa. Two tables provide properties at the
conditions of liquid-vapor equilibrium (saturation properties). A third table provides properties at selected T,p points for the
equilibrium phase at those conditions. The tables were developed by the National Institute of Standards and Technology from a
Standard Reference Database product23, REFPROP, version 9.0.10.0.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Applicability
2.1 These tables apply directly only to pure gaseous ethane. However, it is expected that they may find substantial use in
mathematical models and tables for the thermophysical properties of mixtures containing ethane.
3. Tables
3.1 These tables were produced by equations from a computer package, “NIST Standard Reference Database 23; Reference
Fluid Thermodynamic and Transport Properties Database (REFPROP): Version 9.0.”10.0.” A wide selection of units (SI units,
2
engineering units, chemical units) and additional properties are available with this program.
3.2 These thermophysical property tables are:
3.2.1 Thermophysical Properties of Ethane Liquid at Vapor-Liquid Equilibrium, in SI units. See Table 1.
3.2.2 Thermophysical Properties of Ethane Vapor at Vapor-Liquid Equilibrium, in SI units. See Table 2.
3.2.3 Thermophysical Properties of Ethane Along Isobars, in SI units. See Table 3.
3.3 The symbols are:
T, temperature (K)
-1
)
ρ, molar density (mol·l
-1
H, molar enthalpy (J·mol )
-1 -1
S, molar entropy (J·K ·mol )
-1 -1
C , constant volume molar heat capacity (J·K ·mol )
v
-1 -1
C , constant pressure molar heat capacity (J·K ·mol )
p
-1
c, speed of sound (m·s )
η, viscosity (μPa·s)
-1 -1
λ, thermal conductivity (mW·m ·K )
3.4 The tabulated thermophysical properties are:
-1
ρ, molar density (mol·l )
-1
H, molar enthalpy (J·mol )
1
This specification is under the jurisdiction of ASTM Committee D03 on Gaseous Fuels and is the direct responsibility of Subcommittee D03.08 on Thermophysical
Properties.
Current edition approved May 1, 2013April 1, 2019. Published May 2013June 2019. Originally approved in 1982. Last previous edition approved in 20082013 as
D3984 – 08.D3984 – 13. DOI: 10.1520/D3984-13.10.1520/D3984-19.
2
Available from Standard Reference Data, National Institute of Standards and Technology (NIST), 100 Bureau Drive,Dr., Stop 3460,1070, Gaithersburg, MD
20899.20899-1070, http://www.nist.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3984 − 19
-1 -1
S, molar entropy (J·K ·mol )
-1 -1
C , constant volume molar heat capacity (J·K ·mol )
v
-1 -1
C , constant pressure molar heat capacity (J·K ·mol )
p
-1
c, speed of sound (m·s )
η, viscosity (μPa·s)
-1 -1
λ, thermal conductivity (mW·m ·K )
4. Additional Information
4.1 Reference state properties are required to calculate certain of the thermodynamic properties (enthalpy, entropy, etc.) from
an equation of state formulation. The reference state properties used to generate the tables in this specification are: enthalpy, H,
and entropy, S, at the Normal Boiling Point; 184.57K184.57 K and 0.10133MPa0.10133 MPa (H = 14716 J/mol and S = 79.731
J/(mol K)). The molar mass of ethane is 30.069 g/mol.
5. Keywords
5.1 ethane gas tables; natural gas; thermodynamic properties of ethane; transport pr
...