Changelog for CoolProp

4.2.6

CRITICAL BUGFIX: Repaired memory corruptions thanks to clang AddressSanitizer All users should install this bugfix!!

4.2.5

Bugfix: Fixed mysterious bug referenced in https://github.com/CoolProp/CoolProp/issues/86 .

4.2.4

Bugfix: Thermal conductivity for R404A off by a factor of 1000

4.2.3

Bugfix: Fixed H,P inputs for incompressibles

4.2.2

Bugfix: Fixed crashing behavior with invalid input keys to Props function

4.2.1

Bugfix: Fixed bug in conductivity for Air, argon, oxygen at low densities

4.2.0

• MAJOR: CoolProp now only used in Modelica through ExternalMedia
• MAJOR: Fixed the transport properties for a few fluids that had unit errors in conversion from kSI to SI units
• MINOR: Added acetic acid
• MINOR: Removed quantities support to Props function. I don’t think anyone was using it
• Added third partials for residual Helmholtz energy for SAFT term
• Fixed building for MATLAB on linux
• Fixed some problems with R407C around critical point
• Rudimentary wrappers for LibreOffice and Scilab added
• Added improved ancillary fitter
• Fixed handful of bugs in the humid air routines
• Many other small bugs

4.1.2

• Fixed default calling convention on 32-bit windows to set back to __stdcall. This change should fix DLL-based wrappers that want __cdecl calling convention

4.1.1

• Fixed EES wrapper
• PropsSI function gives correct units for python

4.1.0

• MAJOR: Added unit testing at the C++ level based on Catch
• Added EOS for Methanol from Piazza based on SAFT association term
• Added Prandtl as an output variable
• Predefined mixtures (R404A, R410A, R407C, R507A, Air) can be used with REFPROP using a fluid name like “REFPROP-MIX:R410A.mix” where R410A.mix is a predefined mixture file in the mixtures folder of REFPROP
• Export HAProps in Javascript
• Improved some edge cases for P, S inputs
• Added wrappers for Maple and Mathematica
• Added PropsSI function to DLL that always takes and returns SI units
• Improved EES support for newer versions of EES that broke CoolProp support (EES strings are not case sensitive)
• Added upper-case aliases for all fluids and input variables (to support EES)
• Fixed TTSE and dylib compilation on MacOS
• Added basic wrappers for Fortran and C
• Added incompressible fluids AS10, AS20, AS30, AS40, AS55, ZS10, ZS25, ZS40, ZS45, ZS55

4.0.0

• API CHANGE: Some functions have been condensed, functions get_errstring, get_REFPROPname, etc. have been rolled into get_global_param_string.
• MAJOR: Code now is on github (https://github.com/ibell/coolprop)
• MAJOR: Internally all units are SI, functions should do the necessary conversions using conversion_factor() and get/set_standard_unit_system()
• MAJOR: Brines and incompressible liquids are added to CoolPropStateClass
• MAJOR: Preparing to phase out of DerivTerms function, Props now handles derivatives as well.
• Wrappers added for Java, Javascript, MathCAD, MathCAD Prime
• Improved wrapper for Labview (Thanks to the Sergei and guys at UGent)
• Improved plotting in Python (Thanks Logan)
• Improved Modelica wrapper and added incompressible fluids with p,T and p,h as state variables
• Added viscosity for n-Hexane
• Added R1233zd(E)
• Added more incompressible liquids: Therminol D12, Therminol VP-1, Therminol 72, Therminol 66, Dowtherm J, Dowtherm Q, Texatherm 22, Nitrate Salt Blend, Syltherm XLT, Dynalene HC-10, Dynalene HC-20, Dynalene HC-30, Dynalene HC-40, Dynalene HC-50
• Added slurry ice as incompressible solution of either water-ethanol, water-NaCl or water-propylene glycol with solid content as input
• Added corrosion inhibitor ZitrecAC, anti-freezing agent Pekasol2000
• Added Lithium-Bromide/water as incompressible solution (Thanks to Jaroslav Pátek)

3.3.0 (revision 660)

• MAJOR: Added bicubic interpolation to TTSE method. Enable by calling set_TTSE_mode(Fluid,"TTSE") or set_TTSE_mode(Fluid,"BICUBIC") (for bicubic interpolation). Default is normal TTSE interpolation
• Added deuterium and its isomers from preprint
• Isobutane aliases added
• More work on incompressible liquids

3.2.0 (revision 619)

• Added the function PropsU to python wrapper which allows for use of SI of kSI set of units
• Both inputs to Props can be iterables
• Added the fluid R1234ze(Z)
• Renamed R1234ze to R1234ze(E)
• H-S works
• P-H, P-S fixed
• Fixed n-Undecane entropy
• Fixes to wetbulb temperature
• First code for Mixtures - not exposed through API
• CAS numbers added for all fluids - retrieve using the function get_CAS_code

3.1.2 (revision 577)

• Added the fluids Fluorine, Methanol, R114, R13, R14, R21, RC318, R12, R113
• Isolines are now available for plots (H/T Jorrit Wronski)
• Environmental information on fluids is included, can be obtained using keys GWP100, ODP
• Fixed a bug in HAProps between 273.15 K and 273.16 K
• Fixed some small bugs in ECS for transport properties
• Fixed some bugs in higher derivatives of Helmholtz energy terms

3.1.1 (revision 544)

• Added the fluid Propyne
• Fixed ECS core code
• Added ECS parameters and changed reference fluids for a lot of fluids
• Fixed Air and H2S transport equations
• Fixed compilation bug for sources

3.1 (revision 534)

• Added the fluids Propylene, Cyclopentane, R236FA, R236EA, R227EA, R123, R152A, R227EA, R365MFC, R161, HFE143M, Benzene, R11, Undecane, R125, Cyclopropane, Neon, R124
• Added the viscosity and conductivity correlations for a lot of fluids
• Added surface tension, Lennard-Jones parameters for a lot of fluids
• Added enthalpy, entropy as inputs
• Added pressure, density as inputs
• CoolProp builds on Raspberry PI
• CoolProp works in MATLAB on OSX
• Python unit tests have been added in wrappers/CoolProp/CoolProp/tests - a work in progress

3.0 (revision 325)

• Added Tabular Taylor Series Expansion (see documentation)
• All the way to the critical point for almost all fluids
• Support added for Modelica, Python 3.x and Labview

2.5 (revision 247)

• Added EES wrapper (r245-r247)
• Saturation derivatives dhdp and d2hdp2 (r244)
• Caching of Helholtz derivatives in CPState.cpp (r243)
• Added Xylenes and EthylBenzene (r242)
• Added n-Dodecane, R23, DMC (r241)

2.4 (revision 240)

• Added the fluids R1234ze, DME, R143a, n-Pentane, n-Hexane, n-Octane, n-Heptane, CycleHexane, 1-Butene,trans-2-Butene, cis-2-Butene,IsoButene, MethylLinoleate, MethylLinolenate, MethylOleate, MethylPalmitate, MethylStearate

• Added C# wrappers (built for Windows) (r240)

• Added Phase_Trho() and Phase_Tp() functions (r240)

• Cleanup of the build process. svnrevision is saved to a file that is built in. Can access the svn revision through the functions get_svnrevision() and get_version()

• Added a genetic algorithm to build ancillaries to dev folder (r226)

• Added third partial derivatives of all the Helmholtz Energy terms (r238)

• Bugfixes:

  1. Fixed Q(T,rho) (r237) (https://sourceforge.net/p/coolprop/tickets/42/)
  2. dhdT and dhdrho added back (r232)
  3. Surface tension now properly has the units of N/m as specified in the docs (r228)
  4. Fixed bug from Reiner with V and Vda (r227)
  5. Added a Brent solver to fix the solution for the saturation around the critical point (r220)(https://sourceforge.net/p/coolprop/tickets/38/)
  6. Repaired saturation LUT (r214-r216)
  7. Fixed bugs in IsFluidType as well as fixed bugs in Brine entropy calculations (r213)

2.3 (revision 212)

• Added updated correlations for brines and subcooled liquids from Melinder 2010 (r207)

• Added aliases to docs and python and DLL (r211)

• Excel wrapper updated to catch errors and output them to a message box

• Big speed update to p,Q as inputs (as fast as REFPROP now) (r202)

• Doxygen now gets updated as well (r200)

• Bugfixes:

  1. Updated inputs for brines (order doesn’t matter) (r208)
  2. Fixed REFPROP with single-input props (r206)
  3. Fixed Manifest file for source distro (r206)
  4. Fixed bug with REFPROP mixtures not being properly parsed (r205 & r212)
  5. Added a backup Brent method for HAProps when solving at low humidity ratio: closed https://sourceforge.net/p/coolprop/tickets/32/ (r204)
  6. Added an example to show how to get version of CoolProp: closed https://sourceforge.net/p/coolprop/tickets/34/ (r204)
  7. Closed the bugs/issues in https://sourceforge.net/p/coolprop/tickets/35/ (r203)
  8. Resolved memory leak with ECS (r201)

2.2.5 (revision 199)

• P,h and p,s as inputs solve for almost all fluids under almost all conditions

• Octave modules for 3.6.1 and 3.6.2 now build and run properly for VS build on Windows

• Builds properly on Linux now

• Bugfixes:

  1. REFPROP.cpp bug with mixtures (r195)
  2. fixes around critical point (r198)
  3. Ancillaries for R134a updated in the vicinity of critical point

2.2.4 (revision 192)

• Does not die if pseudo-pure T,P are in the two-phase region
• Fixed bug with dewpoint as an input for dewpoints below 0C
• Added a CoolPropStateClass for elegantly handling inputs - internal codebase will soon transition to this entirely
• Fixed derivatives of drhodp|h and drhodh|p in two-phase region
• Improved ancillary equations for Siloxanes (were terrible!)
• Improved ancillary equations for Ethanol
• Improved ancillary equations for SES36
• Tmin is now an option for CoolProp and REFPROP fluids - ex: Props(“REFPROP-MDM”,”Tmin”) or Props(“MDM”,”Tmin”)
• T_hp is now faster than REFPROP
• Added Excel 2003 Add-in for CoolProp - not clear it is working though
• Improved the Distro builder

2.2.3 (revision 172)

• Added Ethylene, SF6, Ethanol, Methane, Ethane, n-Butane, Isobutane
• x(h,p) is much faster due to the avoidance of a lot of saturation routine calls
• x(p,Q) is about 200 times faster!!
• Added Quality ‘Q’ as an output
• Fixed properties for Air
• Fixed ancillaries for Siloxanes

2.2.2 (revision 169)

• Added MATLAB wrappers and compiled versions on Windows to batch
• Added plots to check solvers for (T,p) and (h,p) in subcooled liquid and superheated vapor regions

2.2.1 (revision 166)

• Added the fluid SES36
• HAProps added to CoolProp wrapper and added to Excel addin
• When using pseudo-pure fluid, saturation density are calculated based on solving for density given T,P and guess value given by ancillary for density
• Improved saturated vapor ancillary for SES36
• Changed default names: R717 -> Ammonia, R744 -> CarbonDioxide, R290 -> Propane

2.2.0 (revision 164)

• Added the Siloxanes (MM,MDM,MD2M,MD3M,MD4M,D4,D5,D6)
• Added a script that will build all the parts (Excel DLL, Python, MATLAB, etc.) and upload to Sourceforge
• Very-alpha code for use of CoolProp in Modelica
• Enthalpy and pressure are valid inputs for Brine fluids
• Added support for quantities package in Python code (If you provide quantities.Quantity instance to CoolProp.CoolProp.Props, the units will be converted to the default units for CoolProp; Default units can be obtained by calling get_index_units(iParam) as a std::string; If a string for the desired output units is passed to Props the units will be converted to the output units)
• Internals of CoolProp changed again, added a function called IProps that uses the integer indices for the input terms as well as the fluids - significant speedup. This is mostly for use with CoolProp.State.State in Python although the same principle can be used elsewhere
• Bug fixes for ECS

2.1.0 (revision 154)

• Added the fluids Hydrogen, Oxygen, and Helium
• Added the output term ‘accentric’ to get the accentric factor of the fluid
• Checking of input temperature now yields errors for bad temperatures below fluid min temp
• Fixed T(h,p) and T(s,p) in two-phase region
• Fixed Units on surface tension to N/m

2.0.6 (revision 147)

• Fixed entropy of humid air at above-atmospheric pressure (Typo in RP-1485)
• Added specific heat of humid air
• Changes to setup.py so that it will not build if cython version < 0.17 which is a requirement due to the use of STL containers
• Changes to plot module to allow for showing right after plot

2.0.5 (revision 143)

• Fixed wetbulb and dewpoint calculations - works correctly now
• Added wrappers for MATLAB and Octave to subversion code - not included in source distro

2.0.4 (revision 132)

• Fixed density for subcooled liquid
• Fixed setup.py for OSX (I think)
• Using cython for wrapping of CoolProp module
• CoolProp module - removed T_hp and h_sp - use Props instead
• Added IceProps function to HumidAirProps
• Added and fixed CO2 transport properties

2.0.1 (revision 122)

• Implemented the method of Akasaka to calculate the saturation state (works great). H/T to FPROPS for the recommendation
• Fixed the calculations for T(h,p) up to a subcooling of 50 K, works fine in superheated vapor
• Added the ideal-gas specific heat with key of C0

2.0.0 (revision 107)

• MAJOR revision to the internals of CoolProp

• Entropy added for humid air (Only fully validated at atmospheric pressure)

• Added the fluids R22, R1234yf and the 20 industrial fluids from Lemmon, 2000

• Added ECS model for calculation of transport properties (somewhat experimental)

• Added surface tension for all fluids. Property key is ‘I’ for surface tension

• Some functions have been removed in order to better handle errors at the C++ level.

  Tcrit(), Tsat() and pcrit() are gone, in Python call Props(‘R134a’,’Tcrit’) for instance to get Tcrit

• Many other bug fixes.

• Documentation to follow.

1.4.0 (revision 75)

• Internal codebase rewritten in C++ to allow for better exception handling and function overloading
• All work now happens in CoolProp.cpp (inspired by FPROPS)
• Added 2-D lookup table (temperature and pressure) directly in CoolProp. Enable by calling UseSinglePhaseLUT(1) to turn on, UseSinglePhaseLUT(0) to turn off
• Compiled with the -builtin compilation flag
• Documentation updated for UseSinglePhaseLUT

1.3.2 (revision 49)

• Added functions to use Isothermal compressibility correlation UseIsothermCompressCorrelation and ideal gas compressibility UseIdealGasEnthalpyCorrelations

1.3.1 (revision 48)

• Updated documentation
• Added ability to use virial term correlations for Humid air by call to UseVirialCorrelation(1)

1.3 (revision 41):

• Added pseudo-pure fluid Air using EOS from Lemmon
• Added EOS for ice from IAPWS
• Updated Humid Air Thermo Props to use analysis from ASHRAE RP-1845, though IAPWS-1995 is used throughout for water vapor
• Enable the use of lookup tables for refrigerant saturation properties[ call UseSaturationLUT(1) to turn on, and UseSaturationLUT(0) to turn off] Speed up is very significant!

1.2.2 (revision 35):

• Added some simple cycles for comparison of different working fluids
• Fixed quality calculations to agree with REFPROP