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NIST Standard Reference
Database 23
NIST Reference Fluid
Thermodynamic and Transport Properties Database (REFPROP): Version 8.0
See the following
frequently asked questions link for additional information:
http://www.boulder.nist.gov/div838/theory/refprop/Frequently_asked_questions.htm
Price:$200.00![Link to the Online Purchase Order Form](images/online.gif) ![Link to the FAX or Mail Order Form](images/faxmail.gif)
Upgrade Price:$100.00
Multiple copy discounts
are available. Contact joan.sauerwein@nist.gov for information regarding
distribution licensing.
Effectively immediately, there will be a minimum $30.00 shipping charge for all international shipments of databases via Fed. Ex. Customer will be responsible for their own duties, tax, and VAT. Contact 301 975 2008 or data@nist.gov if you have questions.
REFPROP 8.0
has replaced the NIST 12 and 14 databases
Version 8.0 expands
the capability of the REFPROP database.
New features include:
- The
typical natural gas constituents methane, ethane, propane,
butane, isobutane, pentane, isopentane, hexane, isohexane, heptane,
octane, nonane, decane, dodecane, carbon dioxide, carbon monoxide,
hydrogen, nitrogen, and water
- The hydrocarbons acetone, benzene,
butene, cis-butene, cyclohexane, cyclopropane, ethylene, isobutene,
neopentane, propyne, trans-butene, and toluene
- The HFCs R23, R32, R41, R125,
R134a, R143a, R152a, R227ea, R236ea, R236fa, R245ca, R245fa, and R365mfc
- The HCFCs R21, R22, R123, R124,
R141b, and R142b
- The traditional CFCs R11, R12,
R13, R113, R114, and R115
- The fluorocarbons R14, R116,
R218, C4F10, C5F12, and
RC318
- The "natural" refrigerants
ammonia, carbon dioxide, propane, isobutane, and propylene
- The main air constituents nitrogen,
oxygen, and argon
- The noble elements helium, argon,
neon, krypton, and xenon
- The cryogens argon, carbon monoxide,
deuterium, krypton, neon, nitrogen trifluoride, nitrogen, fluorine,
helium, methane, oxygen, normal hydrogen, and parahydrogen
- Water (as a pure fluid, or mixed
with ammonia)
- Miscellaneous substances including
carbonyl sulfide, dimethyl ether, ethanol, heavy water, hydrogen sulfide,
methanol, nitrous oxide, sulfur hexafluoride, sulfur dioxide, and
trifluoroiodomethane
- 55 predefined mixtures (such
as R407C, R410A, and air); the user may define and store others
The program uses
the most accurate equations of state and models currently available:
- High accuracy Helmholtz energy
equations of state, including international standard equations for
water, R134a, R32, and R143a and equations from the literature for
ethane, propane, R125, ammonia, carbon dioxide, and others
- High accuracy MBWR equations
of state, including the international standard EOS for R123
- The Bender equation of state
for several of the "older" refrigerants, including R14,
R114, and RC318
- An extended corresponding states
model for fluids with limited data
- An excess Helmholtz energy model
for mixture properties
- Experimentally based values
of the mixture parameters are available for hundreds of mixtures
- Viscosity and thermal conductivity
are based on fluid-specific correlations (where available), a modification
of the extended corresponding states model, or the friction theory
model
Available properties:
- Temperature,
Pressure, Density, Energy, Enthalpy, Entropy, Cv, Cp, Sound Speed,
Compressibility Factor, Joule Thompson Coefficient, Quality, 2nd and
3rd Virial Coefficients, Helmholtz Energy, Gibbs Energy, Heat of Vaporization,
Fugacity, Fugacity Coefficient, K value, Molar Mass, Thermal Conductivity,
Viscosity, Kinematic Viscosity, Thermal Diffusivity, Prandtl Number,
Surface Tension, Dielectric Constant, Isothermal Compressibility,
Volume Expansivity, Isentropic Coefficient, Adiabatic Compressibility,
Specific Heat Input, Exergy, dp/dr, d2p/dr2,
dp/dT, dr/dT,
dr/dp, and
many others
WindowsTM-based,
graphical user interface features:
- The fluid or mixture, units,
reference state, properties to be displayed (among the 75 available),
and other options are specified via pull down menus.
- A wide variety of tables - in
a scrollable, spreadsheet style format - may be calculated, including
saturation properties (with temperature, pressure, density, enthalpy,
entropy, composition, or quality as the independent variable) and
tables at constant temperature, pressure, density, volume, enthalpy,
or entropy (with temperature, pressure, or density varied).
- Input properties may be read
from a file.
- Data in any table can be copied
to the clipboard for export to other programs (such as spreadsheets).
- Data in any table can be plotted.
- A wide variety of property diagrams
may be automatically generated, including pressure-enthalpy and temperature-entropy
diagrams and (for binary mixtures) temperature-composition and pressure-composition
plots.
- User preferences and entire
sessions may be stored for later use.
- A
fluid search dialog is available to find fluids that match a certain
criteria.
- A complete help system is available.
Source code: The FORTRAN subroutines and associated
fluid data files are provided for those wishing to access REFPROP calculations
from their own applications.
Excel spreadsheets: Two sample spreadsheets are included that demonstrate how
the REFPROP DLL can be linked to Excel.
Most properties that are available in the graphical interface
can also be calculated in the spreadsheets.
System Requirements:
PC running WindowsTM 98,
2000, XP or similar operating system; 10.0 MB available hard disk space.
The Vista operating system is not yet supported but initial testing
has been positive.
You may browse
the Users' Guide to see how
this database works.
Click here to view the PDF version
of Users' Guide.
Price: $200.00![Link to the Online Purchase Order Form](images/online.gif)
Upgrade
Price:
$100.00![Link to the Online Purchase Order Form](images/online.gif)
Multiple copy discounts
are available.
Effectively
immediately, there will be a minimum $30.00 shipping charge for all
international shipments of databases via Fed. Ex. Customer will be responsible
for their own duties, tax, and VAT. Contact 301 975 2008 or data@nist.gov
if you have questions.
For
more information please contact:
Standard
Reference Data Program
National Institute of Standards and Technology
100 Bureau Dr., Stop 2300
Gaithersburg, MD 20899-2310
(301) 975-2008
(VOICE)
(301) 926-0416 (FAX)
Contact Us (E-MAIL)
Contact
Joan Sauerwein for information regarding distribution licensing.
(301)
975-2208 (VOICE)
(301) 926-0416 (FAX)
Joan.Sauerwein@nist.gov
(E-MAIL)
The scientific
contacts for the database:
Thermodynamic properties, graphical
interface, and Excel spreadsheets:
Eric W. Lemmon
Physical and Chemical Properties Division
National Institute of Standards and Technology
Boulder, CO 80305-3328
(303) 497-7939
EricL@boulder.nist.gov
Transport properties:
Marcia L. Huber
Physical and Chemical Properties Division
National Institute of Standards and Technology
Boulder, CO 80305-3328
(303) 497-5252
Huber@boulder.nist.gov
Keywords: air; alternative refrigerants; CFC;
chemical engineering; chemistry; chlorofluorocarbons; cryogens; hydrochlorofluorocarbons;
equation of state; fluids; hydrocarbons; HCFC; HFC; mixtures; natural
gas; refrigerants; thermodynamic property; thermodynamics; thermophysics;
transport property
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