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Foundation ::
Chemistry and Thermodynamics ::
MIPROPS
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MIPROPS
Interactive Fortran Programs for Microcomputers to Calculate the Thermal Physical Properties of Twelve Fluids
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SOURCE CODE AVAILABLE
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MIPROPS is a set of programs which gives the thermophysical and transport
properties of selected fluids. Although these programs are written in
FORTRAN 77 for implementation on microcomputers, they are direct translations
of interactive FORTRAN IV programs which were originally developed
for large mainframes. MIPROPS calculates the properties of fluids in both
the liquid and vapor states over a wide range of temperatures and pressures.
The fluids included are:
- helium,
- parahydrogen,
- nitrogen,
- oxygen,
- argon,
- nitrogen trifluoride,
- methane,
- ethylene,
- ethane,
- propane, and
- iso- and
normal butane.
All of the programs except for the helium program utilize the same
mathematical model of the equation of state. A separate program was necessary
for helium, as the model for the helium thermodynamic surface is of
a different form. The input variables are any two of pressure, density, or
temperature for the single phase regions, and either pressure or temperature
for the saturated liquid or vapor states. The output is
- pressure,
- density,
- temperature,
- internal energy,
- enthalpy,
- entropy,
- specific heat capacities,
- and speed of sound.
In addition, viscosity, thermal conductivity,
and dielectric constants are calculated for most of the fluids. The
user can select either a single point or a table of output values for a specified
temperature range, and can display the data either in engineering or
metric units.
MIPROPS carries the NASA case number MSC-21664. It was originally released as part of the NASA COSMIC collection.
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