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CoolProp/src/Backends/REFPROP/REFPROPMixtureBackend.cpp
Ian Bell 73c7fc6bad Switch MATLAB+OSX to libstdc++; see #596
2015-04-17 17:25:52 -06:00

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/*
* AbstractBackend.cpp
*
* Created on: 20 Dec 2013
* Author: jowr
*/
/*!
From REFPROP:
temperature K
pressure, fugacity kPa
density mol/L
composition mole fraction
quality mole basis (moles vapor/total moles)
enthalpy, internal energy J/mol
Gibbs, Helmholtz free energy J/mol
entropy, heat capacity J/(mol.K)
speed of sound m/s
Joule-Thomson coefficient K/kPa
d(p)/d(rho) kPa.L/mol
d2(p)/d(rho)2 kPa.(L/mol)^2
viscosity microPa.s (10^-6 Pa.s)
thermal conductivity W/(m.K)
dipole moment debye
surface tension N/m
*/
#include "CoolPropTools.h"
#if defined(__powerpc__)
void *RefpropdllInstance=NULL;
char refpropPath[] = "/opt/refprop";
#elif defined(__ISLINUX__)
#include <dlfcn.h>
void *RefpropdllInstance=NULL;
char refpropPath[] = "/opt/refprop";
#elif defined(__ISWINDOWS__)
#include <windows.h>
HINSTANCE RefpropdllInstance=NULL;
char refpropPath[] = "";
#elif defined(__ISAPPLE__)
#include <dlfcn.h>
void *RefpropdllInstance=NULL;
char refpropPath[] = "/opt/refprop";
#else
#pragma error
#endif
enum DLLNameManglingStyle{ NO_NAME_MANGLING = 0, LOWERCASE_NAME_MANGLING, LOWERCASE_AND_UNDERSCORE_NAME_MANGLING };
#include "REFPROP_lib.h"
#include "REFPROPMixtureBackend.h"
#include "Exceptions.h"
#include "Configuration.h"
#include "CoolProp.h"
#include <stdlib.h>
#include <string>
#include <stdio.h>
#include <iostream>
#include <cassert>
#include "crossplatform_shared_ptr.h"
#if defined(_MSC_VER)
#define _CRTDBG_MAP_ALLOC
#define _CRT_SECURE_NO_WARNINGS
#include <crtdbg.h>
#include <sys/stat.h>
#else
#include <sys/stat.h>
#endif
std::string LoadedREFPROPRef;
// Check windows
#if _WIN32 || _WIN64
#if _WIN64
#define ENV64BIT
#else
#define ENV32BIT
#endif
#endif
// Check GCC
#if __GNUC__
#if __x86_64__ || __ppc64__
#define ENV64BIT
#else
#define ENV32BIT
#endif
#endif
static bool dbg_refprop = false;
static std::string RPVersion_loaded = "";
static const unsigned int number_of_endings = 5;
std::string endings[number_of_endings] = {"", ".FLD", ".fld", ".PPF", ".ppf"};
static char rel_path_HMC_BNC[] = "HMX.BNC";
static char default_reference_state[] = "DEF";
/* Define functions as pointers and initialise them to NULL
* Declare the functions for direct access
*
* Example: SETPATHdll_POINTER SETPATHdll;
*
* ***MAGIC WARNING**!! X Macros in use
* See http://stackoverflow.com/a/148610
* See http://stackoverflow.com/questions/147267/easy-way-to-use-variables-of-enum-types-as-string-in-c#202511
*/
#define X(name) name ## _POINTER name;
LIST_OF_REFPROP_FUNCTION_NAMES
#undef X
void *getFunctionPointer(const char * name, DLLNameManglingStyle mangling_style = NO_NAME_MANGLING)
{
std::string function_name;
switch(mangling_style){
case NO_NAME_MANGLING:
function_name = name; break;
case LOWERCASE_NAME_MANGLING:
function_name = lower(name); break;
case LOWERCASE_AND_UNDERSCORE_NAME_MANGLING:
function_name = lower(name) + "_"; break;
}
#if defined(__ISWINDOWS__)
return (void *) GetProcAddress(RefpropdllInstance, function_name.c_str());
#elif defined(__ISLINUX__)
return dlsym(RefpropdllInstance, function_name.c_str());
#elif defined(__ISAPPLE__)
return dlsym(RefpropdllInstance, function_name.c_str());
#else
throw CoolProp::NotImplementedError("This function should not be called.");
return NULL;
#endif
}
//Moved pointer handling to a function, helps to maintain
//an overview and structures OS dependent parts
double setFunctionPointers()
{
if (RefpropdllInstance==NULL)
{
printf("REFPROP is not loaded, make sure you call this function after loading the library.\n");
return -_HUGE;
}
/* First determine the type of name mangling in use.
* A) RPVersion -> RPVersion
* B) RPVersion -> rpversion
* C) RPVersion -> rpversion_
*/
DLLNameManglingStyle mangling_style = NO_NAME_MANGLING; // defaults to no mangling
SETUPdll = (SETUPdll_POINTER) getFunctionPointer("SETUPdll");
if (SETUPdll == NULL){ // some mangling in use
SETUPdll = (SETUPdll_POINTER) getFunctionPointer("setupdll");
if (SETUPdll != NULL){
mangling_style = LOWERCASE_NAME_MANGLING;
}
else{
SETUPdll = (SETUPdll_POINTER) getFunctionPointer("setupdll_");
if (SETUPdll != NULL){
mangling_style = LOWERCASE_AND_UNDERSCORE_NAME_MANGLING;
}
else{
throw CoolProp::ValueError("Could not load the symbol SETUPdll or any of its mangled forms; REFPROP shared library broken");
}
}
}
/* Set the pointers, platform independent
*
* Example: RPVersion = (RPVersion_POINTER) getFunctionPointer(STRINGIFY(RPVersion));
*
* ***MAGIC WARNING**!! X Macros in use
* See http://stackoverflow.com/a/148610
* See http://stackoverflow.com/questions/147267/easy-way-to-use-variables-of-enum-types-as-string-in-c#202511
*/
#define X(name) name = (name ## _POINTER) getFunctionPointer(STRINGIFY(name), mangling_style);
LIST_OF_REFPROP_FUNCTION_NAMES
#undef X
return COOLPROP_OK;
}
std::string get_REFPROP_fluid_path()
{
std::string rpPath = refpropPath;
// Allow the user to specify an alternative REFPROP path by configuration value
std::string alt_refprop_path = CoolProp::get_config_string(ALTERNATIVE_REFPROP_PATH);
if (!alt_refprop_path.empty()){ rpPath = alt_refprop_path; }
#if defined(__ISWINDOWS__)
return rpPath;
#elif defined(__ISLINUX__)
return rpPath + std::string("/fluids/");
#elif defined(__ISAPPLE__)
return rpPath + std::string("/fluids/");
#else
throw CoolProp::NotImplementedError("This function should not be called.");
return rpPath;
#endif
}
bool load_REFPROP()
{
// If REFPROP is not loaded
if (RefpropdllInstance==NULL)
{
// Load it
#if defined(__ISWINDOWS__)
/* We need this logic on windows because if you use the bitness
* macros it requires that the build bitness and the target bitness
* are the same which is in general not the case. Therefore, checking
* both is safe
*/
// First try to load the 64-bit version
// 64-bit code here.
TCHAR refpropdllstring[100] = TEXT("refprp64.dll");
RefpropdllInstance = LoadLibrary(refpropdllstring);
if (RefpropdllInstance==NULL){
// That didn't work, let's try the 32-bit version
// 32-bit code here.
TCHAR refpropdllstring32[100] = TEXT("refprop.dll");
RefpropdllInstance = LoadLibrary(refpropdllstring32);
}
#elif defined(__ISLINUX__)
RefpropdllInstance = dlopen ("librefprop.so", RTLD_NOW);
#elif defined(__ISAPPLE__)
RefpropdllInstance = dlopen ("librefprop.dylib", RTLD_NOW);
#else
throw CoolProp::NotImplementedError("We should not reach this point.");
RefpropdllInstance = NULL;
#endif
if (RefpropdllInstance==NULL)
{
#if defined(__ISWINDOWS__)
printf("Could not load refprop.dll \n\n");
throw CoolProp::AttributeError("Could not load refprop.dll, make sure it is in your system search path. In case you run 64bit and you have a REFPROP license, try installing the 64bit DLL from NIST.");
#elif defined(__ISLINUX__)
fputs (dlerror(), stderr);
printf("Could not load librefprop.so \n\n");
throw CoolProp::AttributeError("Could not load librefprop.so, make sure it is in your system search path.");
#elif defined(__ISAPPLE__)
fputs (dlerror(), stderr);
printf("Could not load librefprop.dylib \n\n");
throw CoolProp::AttributeError("Could not load librefprop.dylib, make sure it is in your system search path.");
#else
throw CoolProp::NotImplementedError("Something is wrong with the platform definition, you should not end up here.");
#endif
return false;
}
if (setFunctionPointers()!=COOLPROP_OK)
{
printf("There was an error setting the REFPROP function pointers, check types and names in header file.\n");
throw CoolProp::AttributeError("There was an error setting the REFPROP function pointers, check types and names in header file.");
return false;
}
char rpv[1000];
RPVersion(rpv, 1000);
RPVersion_loaded = rpv;
return true;
}
return true;
}
namespace CoolProp {
REFPROPMixtureBackend::REFPROPMixtureBackend(const std::vector<std::string>& fluid_names) {
// Do the REFPROP instantiation for this fluid
_mole_fractions_set = false;
// Try to add this fluid to REFPROP - might want to think about making array of
// components and setting mole fractions if they change a lot.
this->set_REFPROP_fluids(fluid_names);
// Bump the number of REFPROP backends that are in existence;
REFPROPMixtureBackend::instance_counter++;
}
REFPROPMixtureBackend::~REFPROPMixtureBackend() {
// Decrement the counter for the number of instances
REFPROPMixtureBackend::instance_counter--;
// Unload the shared library when the last instance is about to be destroyed
if (REFPROPMixtureBackend::instance_counter == 0){
if (RefpropdllInstance!=NULL) {
// Unload it
#if defined(__ISWINDOWS__)
FreeLibrary(RefpropdllInstance);
//delete RefpropdllInstance;
RefpropdllInstance = NULL;
#elif defined(__ISLINUX__)
dlclose (RefpropdllInstance);
//delete RefpropdllInstance;
RefpropdllInstance = NULL;
#elif defined(__ISAPPLE__)
dlclose (RefpropdllInstance);
//delete RefpropdllInstance;
RefpropdllInstance = NULL;
#else
throw CoolProp::NotImplementedError("We should not reach this point.");
//delete RefpropdllInstance;
RefpropdllInstance = NULL;
#endif
LoadedREFPROPRef = "";
}
}
}
void REFPROPMixtureBackend::check_loaded_fluid()
{
this->set_REFPROP_fluids(this->fluid_names);
}
std::size_t REFPROPMixtureBackend::instance_counter = 0; // initialise with 0
bool REFPROPMixtureBackend::_REFPROP_supported = true; // initialise with true
bool REFPROPMixtureBackend::REFPROP_supported () {
/*
* Here we build the bridge from macro definitions
* into the actual code. This is also going to be
* the central place to handle error messages on
* unsupported platforms.
*/
// Abort check if Refprop has been loaded.
if (RefpropdllInstance!=NULL) return true;
// Store result of previous check.
if (_REFPROP_supported) {
// Either Refprop is supported or it is the first check.
std::string rpv(STRINGIFY(RPVersion));
if (rpv.compare("NOTAVAILABLE")!=0) {
// Function names were defined in "REFPROP_lib.h",
// This platform theoretically supports Refprop.
if (::load_REFPROP()) {
return true;
}
else {
printf("Good news: It is possible to use REFPROP on your system! However, the library \n");
printf("could not be loaded. Please make sure that REFPROP is available on your system.\n\n");
printf("Neither found in current location nor found in system PATH.\n");
printf("If you already obtained a copy of REFPROP from http://www.nist.gov/srd/, \n");
printf("add location of REFPROP to the PATH environment variable or your library path.\n\n");
printf("In case you do not use Windows, have a look at https://github.com/jowr/librefprop.so \n");
printf("to find instructions on how to compile your own version of the REFPROP library.\n\n");
_REFPROP_supported = false;
return false;
}
} else {
// No definition of function names, we do not expect
// the Refprop library to be available.
_REFPROP_supported = false;
return false;
}
} else {
return false;
}
return false;
}
void REFPROPMixtureBackend::set_REFPROP_fluids(const std::vector<std::string> &fluid_names)
{
// If the name of the refrigerant doesn't match
// that of the currently loaded refrigerant, fluids must be loaded
if (!cached_component_string.empty() && LoadedREFPROPRef == cached_component_string)
{
if (CoolProp::get_debug_level() > 5){ std::cout << format("%s:%d: The current fluid can be reused; %s and %s match \n",__FILE__,__LINE__,cached_component_string.c_str(),LoadedREFPROPRef.c_str()); }
if (dbg_refprop) std::cout << format("%s:%d: The current fluid can be reused; %s and %s match \n",__FILE__,__LINE__,cached_component_string.c_str(),LoadedREFPROPRef.c_str());
long N = static_cast<long>(fluid_names.size());
this->Ncomp = N;
mole_fractions.resize(N);
mole_fractions_liq.resize(N);
mole_fractions_vap.resize(N);
return;
}
else
{
long ierr=0;
this->fluid_names = fluid_names;
char component_string[10000], herr[errormessagelength];
std::string components_joined = strjoin(fluid_names,"|");
std::string components_joined_raw = strjoin(fluid_names,"|");
std::string fdPath = get_REFPROP_fluid_path();
long N = static_cast<long>(fluid_names.size());
// Check platform support
if(!REFPROP_supported()){ throw NotImplementedError("You cannot use the REFPROPMixtureBackend."); }
if (N == 1 && upper(components_joined_raw).find(".MIX") != std::string::npos){
// It's a predefined mixture
ierr = 0;
std::vector<double> x(ncmax);
char mix[255];
strcpy(mix, components_joined_raw.c_str());
char hmx_bnc[255] = "HMX.BNC", reference_state[4] = "DEF";
std::string alt_hmx_bnc_path = CoolProp::get_config_string(ALTERNATIVE_REFPROP_HMX_BNC_PATH);
if (!alt_hmx_bnc_path.empty()){
strcpy(hmx_bnc, alt_hmx_bnc_path.c_str());
}
SETMIXdll(mix,
hmx_bnc,
reference_state,
&N,
component_string,
&(x[0]),
&ierr,
herr,
255,
255,
3,
10000,
255);
if (static_cast<int>(ierr) <= 0){
this->Ncomp = N;
mole_fractions.resize(N);
mole_fractions_liq.resize(N);
mole_fractions_vap.resize(N);
LoadedREFPROPRef = mix;
cached_component_string = mix;
if (CoolProp::get_debug_level() > 5){ std::cout << format("%s:%d: Successfully loaded REFPROP fluid: %s\n",__FILE__,__LINE__, components_joined.c_str()); }
if (dbg_refprop) std::cout << format("%s:%d: Successfully loaded REFPROP fluid: %s\n",__FILE__,__LINE__, components_joined.c_str());
set_mole_fractions(std::vector<CoolPropDbl>(x.begin(), x.begin()+N));
return;
}
else{
throw ValueError(format("Unable to load mixture: %s",components_joined_raw.c_str()));
}
}
// Loop over the file names - first we try with nothing, then .fld, then .FLD, then .ppf - means you can't mix and match
for (unsigned int k = 0; k < number_of_endings; k++)
{
// Build the mixture string
for (unsigned int j = 0; j < (unsigned int)N; j++)
{
if (j == 0){
components_joined = fdPath + upper(fluid_names[j])+endings[k];
}
else{
components_joined += "|" + fdPath + upper(fluid_names[j])+endings[k];
}
}
if (dbg_refprop) std::cout << format("%s:%d: The fluid %s has not been loaded before, current value is %s \n",__FILE__,__LINE__,components_joined_raw.c_str(),LoadedREFPROPRef.c_str());
char path_HMX_BNC[refpropcharlength+1];
strcpy(path_HMX_BNC, fdPath.c_str());
strcat(path_HMX_BNC, rel_path_HMC_BNC);
std::string alt_hmx_bnc_path = CoolProp::get_config_string(ALTERNATIVE_REFPROP_HMX_BNC_PATH);
if (!alt_hmx_bnc_path.empty()){
strcpy(path_HMX_BNC, alt_hmx_bnc_path.c_str());
}
strcpy(component_string, components_joined.c_str());
ierr = 0;
//...Call SETUP to initialize the program
SETUPdll(&N, component_string, path_HMX_BNC, default_reference_state,
&ierr, herr,
10000, // Length of component_string (see PASS_FTN.for from REFPROP)
refpropcharlength, // Length of path_HMX_BNC
lengthofreference, // Length of reference
errormessagelength // Length of error message
);
if (static_cast<int>(ierr) <= 0) // Success (or a warning, which is silently squelched for now)
{
this->Ncomp = N;
mole_fractions.resize(N);
mole_fractions_liq.resize(N);
mole_fractions_vap.resize(N);
LoadedREFPROPRef = component_string;
cached_component_string = component_string;
if (CoolProp::get_debug_level() > 5){ std::cout << format("%s:%d: Successfully loaded REFPROP fluid: %s\n",__FILE__,__LINE__, components_joined.c_str()); }
if (dbg_refprop) std::cout << format("%s:%d: Successfully loaded REFPROP fluid: %s\n",__FILE__,__LINE__, components_joined.c_str());
return;
}
else if (k < number_of_endings-1){ // Keep going
if (CoolProp::get_debug_level() > 5){std::cout << format("REFPROP error/warning [ierr: %d]: %s",ierr, herr) << std::endl;}
continue;
}
else
{
if (CoolProp::get_debug_level() > 5){std::cout << format("k: %d #endings: %d", k, number_of_endings) << std::endl;}
throw ValueError(format("Could not load these fluids: %s", components_joined_raw.c_str()));
}
}
}
}
void REFPROPMixtureBackend::set_mole_fractions(const std::vector<CoolPropDbl> &mole_fractions)
{
if (mole_fractions.size() != this->Ncomp)
{
throw ValueError(format("size of mole fraction vector [%d] does not equal that of component vector [%d]",mole_fractions.size(), this->Ncomp));
}
this->mole_fractions.resize(mole_fractions.size());
for (std::size_t i = 0; i < mole_fractions.size(); ++i)
{
this->mole_fractions[i] = static_cast<double>(mole_fractions[i]);
}
this->mole_fractions_long_double = mole_fractions;
_mole_fractions_set = true;
}
void REFPROPMixtureBackend::set_mass_fractions(const std::vector<CoolPropDbl> &mole_fractions)
{
throw NotImplementedError("Mass fractions not currently supported");
}
void REFPROPMixtureBackend::check_status(void)
{
if (!_mole_fractions_set){ throw ValueError("Mole fractions not yet set");}
}
void REFPROPMixtureBackend::limits(double &Tmin, double &Tmax, double &rhomolarmax, double &pmax)
{
/*
*
subroutine LIMITS (htyp,x,tmin,tmax,Dmax,pmax)
c
c returns limits of a property model as a function of composition
c
c Pure fluid limits are read in from the .fld files; for mixtures, a
c simple mole fraction weighting in reduced variables is used.
c
c inputs:
c htyp--flag indicating which models are to be checked [character*3]
c 'EOS': equation of state for thermodynamic properties
c 'ETA': viscosity
c 'TCX': thermal conductivity
c 'STN': surface tension
c x--composition array [mol frac]
c outputs:
c tmin--minimum temperature for model specified by htyp [K]
c tmax--maximum temperature [K]
c Dmax--maximum density [mol/L]
c pmax--maximum pressure [kPa]
*
*/
this->check_loaded_fluid();
double Dmax_mol_L,pmax_kPa;
char htyp[] = "EOS";
LIMITSdll(htyp, &(mole_fractions[0]), &Tmin, &Tmax, &Dmax_mol_L, &pmax_kPa, 3);
pmax = pmax_kPa*1000;
rhomolarmax = Dmax_mol_L*1000;
}
CoolPropDbl REFPROPMixtureBackend::calc_pmax(void){
double Tmin, Tmax, rhomolarmax, pmax;
limits(Tmin, Tmax, rhomolarmax, pmax);
return static_cast<CoolPropDbl>(pmax);
};
CoolPropDbl REFPROPMixtureBackend::calc_Tmax(void){
double Tmin, Tmax, rhomolarmax, pmax;
limits(Tmin, Tmax, rhomolarmax, pmax);
return static_cast<CoolPropDbl>(Tmax);
};
CoolPropDbl REFPROPMixtureBackend::calc_T_critical(){
this->check_loaded_fluid();
long ierr = 0;
char herr[255];
double Tcrit, pcrit_kPa, dcrit_mol_L;
CRITPdll(&(mole_fractions[0]),&Tcrit,&pcrit_kPa,&dcrit_mol_L,&ierr,herr,255);
if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); } //else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
return static_cast<CoolPropDbl>(Tcrit);
};
CoolPropDbl REFPROPMixtureBackend::calc_p_critical(){
this->check_loaded_fluid();
long ierr = 0;
char herr[255];
double Tcrit, pcrit_kPa, dcrit_mol_L;
CRITPdll(&(mole_fractions[0]),&Tcrit,&pcrit_kPa,&dcrit_mol_L,&ierr,herr,255); if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); } //else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
return static_cast<CoolPropDbl>(pcrit_kPa*1000);
};
CoolPropDbl REFPROPMixtureBackend::calc_rhomolar_critical(){
long ierr = 0;
char herr[255];
double Tcrit, pcrit_kPa, dcrit_mol_L;
CRITPdll(&(mole_fractions[0]),&Tcrit,&pcrit_kPa,&dcrit_mol_L,&ierr,herr,255); if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); } //else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
return static_cast<CoolPropDbl>(dcrit_mol_L*1000);
};
CoolPropDbl REFPROPMixtureBackend::calc_T_reducing(){
this->check_loaded_fluid();
double rhored_mol_L = 0, Tr = 0;
REDXdll(&(mole_fractions[0]), &Tr, &rhored_mol_L);
return static_cast<CoolPropDbl>(Tr);
};
CoolPropDbl REFPROPMixtureBackend::calc_rhomolar_reducing(){
this->check_loaded_fluid();
double rhored_mol_L = 0, Tr = 0;
REDXdll(&(mole_fractions[0]), &Tr, &rhored_mol_L);
return static_cast<CoolPropDbl>(rhored_mol_L*1000);
};
CoolPropDbl REFPROPMixtureBackend::calc_Ttriple(){
this->check_loaded_fluid();
double tmin, tmax, Dmax, pmax;
char htyp[3] = {'E','O','S'};
LIMITSdll(htyp, &(mole_fractions[0]), &tmin, &tmax, &Dmax, &pmax, 3);
return static_cast<CoolPropDbl>(tmin);
};
CoolPropDbl REFPROPMixtureBackend::calc_gas_constant(){
this->check_loaded_fluid();
double Rmix = 0;
RMIX2dll(&(mole_fractions[0]), &Rmix);
return static_cast<CoolPropDbl>(Rmix);
};
CoolPropDbl REFPROPMixtureBackend::calc_molar_mass(void)
{
this->check_loaded_fluid();
double wmm_kg_kmol;
WMOLdll(&(mole_fractions[0]), &wmm_kg_kmol); // returns mole mass in kg/kmol
_molar_mass = wmm_kg_kmol/1000; // kg/mol
return static_cast<CoolPropDbl>(_molar_mass.pt());
};
double REFPROPMixtureBackend::calc_melt_Tmax()
{
this->check_loaded_fluid();
long ierr = 0;
char herr[255];
double tmin,tmax,Dmax_mol_L,pmax_kPa, Tmax_melt;
char htyp[] = "EOS";
LIMITSdll(htyp, &(mole_fractions[0]), &tmin, &tmax, &Dmax_mol_L, &pmax_kPa, 3);
// Get the maximum temperature for the melting curve by using the maximum pressure
MELTPdll(&pmax_kPa, &(mole_fractions[0]),
&Tmax_melt,
&ierr,herr,errormessagelength); // Error message
if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); }
//else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
return Tmax_melt;
}
CoolPropDbl REFPROPMixtureBackend::calc_melting_line(int param, int given, CoolPropDbl value)
{
this->check_loaded_fluid();
long ierr = 0;
char herr[255];
if (param == iP && given == iT){
double _T = static_cast<double>(value), p_kPa;
MELTTdll(&_T, &(mole_fractions[0]),
&p_kPa,
&ierr,herr,errormessagelength); // Error message
if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); } //else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
return p_kPa*1000;
}
else if (param == iT && given == iP){
double p_kPa = static_cast<double>(value), _T;
MELTPdll(&p_kPa, &(mole_fractions[0]),
&_T,
&ierr,herr,errormessagelength); // Error message
if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); } //else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
return p_kPa*1000;
}
else{
throw ValueError(format("calc_melting_line(%s,%s,%Lg) is an invalid set of inputs ",
get_parameter_information(param,"short").c_str(),
get_parameter_information(given,"short").c_str(),
value
)
);
}
}
CoolPropDbl REFPROPMixtureBackend::calc_viscosity(void)
{
this->check_loaded_fluid();
double eta, tcx, rhomol_L = 0.001*_rhomolar;
long ierr = 0;
char herr[255];
TRNPRPdll(&_T,&rhomol_L,&(mole_fractions[0]), // Inputs
&eta,&tcx, // Outputs
&ierr,herr,errormessagelength); // Error message
if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); }
//else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
_viscosity = 1e-6*eta;
_conductivity = tcx;
return static_cast<double>(_viscosity);
}
CoolPropDbl REFPROPMixtureBackend::calc_conductivity(void)
{
// Calling viscosity also caches conductivity, use that to save calls
calc_viscosity();
return static_cast<double>(_conductivity);
}
CoolPropDbl REFPROPMixtureBackend::calc_surface_tension(void)
{
this->check_loaded_fluid();
double sigma, rho_mol_L = 0.001*_rhomolar;
long ierr = 0;
char herr[255];
SURFTdll(&_T, &rho_mol_L, &(mole_fractions[0]), // Inputs
&sigma, // Outputs
&ierr, herr, errormessagelength); // Error message
if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); }
//else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
_surface_tension = sigma;
return static_cast<double>(_surface_tension);
}
CoolPropDbl REFPROPMixtureBackend::calc_fugacity_coefficient(int i)
{
this->check_loaded_fluid();
double rho_mol_L = 0.001*_rhomolar;
long ierr = 0;
std::vector<double> fug_cof;
fug_cof.resize(mole_fractions.size());
char herr[255];
FUGCOFdll(&_T, &rho_mol_L, &(mole_fractions[0]), // Inputs
&(fug_cof[0]), // Outputs
&ierr, herr, errormessagelength); // Error message
if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); }
//else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
return static_cast<CoolPropDbl>(fug_cof[i]);
}
void REFPROPMixtureBackend::calc_phase_envelope(const std::string &type)
{
this->check_loaded_fluid();
double rhoymin, rhoymax, c = 0;
long ierr = 0;
char herr[255];
SATSPLNdll(&(mole_fractions[0]), // Inputs
&ierr, herr, errormessagelength); // Error message
if (static_cast<int>(ierr) > 0) { throw ValueError(format("%s",herr).c_str()); }
// Clear the phase envelope data
PhaseEnvelope = PhaseEnvelopeData();
/*
subroutine SPLNVAL (isp,iderv,a,f,ierr,herr)
c
c calculates the function value of a spline
c
c inputs:
c isp--indicator for which spline to use (1-nc: composition,
c nc+1: temperature, nc+2: pressure, nc+3: density,
c nc+4: enthalpy, nc+5: entropy)
c iderv--values of -1 and -2 return lower and upper root values,
c value of 0 returns spline function, value of 1 returns
c derivative of spline function with respect to density
c a--root value
c outputs:
c f--value of spline function at input root
c ierr--error flag: 0 = successful
c herr--error string (character*255)
*/
long N = 500;
long isp = 0, iderv = -1;
SPLNVALdll(&isp, &iderv, &c, &rhoymin, &ierr, herr, errormessagelength);
iderv = -2;
SPLNVALdll(&isp, &iderv, &c, &rhoymax, &ierr, herr, errormessagelength);
long nc = static_cast<long>(mole_fractions.size());
double ratio = pow(rhoymax/rhoymin,1/double(N));
for (double rho_molL = rhoymin; rho_molL < rhoymax; rho_molL *= ratio)
{
double y; iderv = 0;
PhaseEnvelope.rhomolar_vap.push_back(rho_molL*1000);
isp = nc + 1;
SPLNVALdll(&isp, &iderv, &rho_molL, &y, &ierr, herr, errormessagelength);
PhaseEnvelope.T.push_back(y);
isp = nc + 2;
SPLNVALdll(&isp, &iderv, &rho_molL, &y, &ierr, herr, errormessagelength);
PhaseEnvelope.p.push_back(y*1000);
isp = nc + 3;
SPLNVALdll(&isp, &iderv, &rho_molL, &y, &ierr, herr, errormessagelength);
PhaseEnvelope.rhomolar_liq.push_back(y*1000);
isp = nc + 4;
SPLNVALdll(&isp, &iderv, &rho_molL, &y, &ierr, herr, errormessagelength);
PhaseEnvelope.hmolar_vap.push_back(y*1000);
isp = nc + 5;
SPLNVALdll(&isp, &iderv, &rho_molL, &y, &ierr, herr, errormessagelength);
PhaseEnvelope.smolar_vap.push_back(y*1000);
}
double rr = 0;
}
CoolPropDbl REFPROPMixtureBackend::calc_cpmolar_idealgas(void)
{
this->check_loaded_fluid();
double rho_mol_L = 0.001*_rhomolar;
double p0, e0, h0, s0, cv0, cp0, w0, A0, G0;
THERM0dll(&_T,&rho_mol_L,&(mole_fractions[0]),&p0,&e0,&h0,&s0,&cv0,&cp0,&w0,&A0,&G0);
return static_cast<CoolPropDbl>(cp0);
}
void REFPROPMixtureBackend::update(CoolProp::input_pairs input_pair, double value1, double value2)
{
this->check_loaded_fluid();
double rho_mol_L=_HUGE, rhoLmol_L=_HUGE, rhoVmol_L=_HUGE,
hmol=_HUGE,emol=_HUGE,smol=_HUGE,cvmol=_HUGE,cpmol=_HUGE,
w=_HUGE,q=_HUGE, mm=_HUGE, p_kPa = _HUGE;
long ierr = 0;
char herr[errormessagelength+1];
clear();
// Check that mole fractions have been set, etc.
check_status();
// Get the molar mass of the fluid for the given composition
WMOLdll(&(mole_fractions[0]), &mm); // returns mole mass in kg/kmol
_molar_mass = 0.001*mm; // [kg/mol]
switch(input_pair)
{
case PT_INPUTS:
{
// Unit conversion for REFPROP
p_kPa = 0.001*value1; _T = value2; // Want p in [kPa] in REFPROP
// Use flash routine to find properties
TPFLSHdll(&_T,&p_kPa,&(mole_fractions[0]),&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions[0]), // Saturation terms
&q,&emol,&hmol,&smol,&cvmol,&cpmol,&w,
&ierr,herr,errormessagelength); //
if (static_cast<int>(ierr) > 0) { throw ValueError(format("PT: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = value1;
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case DmolarT_INPUTS:
{
// Unit conversion for REFPROP
_rhomolar = value1; rho_mol_L = 0.001*value1; _T = value2; // Want rho in [mol/L] in REFPROP
// Use flash routine to find properties
TDFLSHdll(&_T,&rho_mol_L,&(mole_fractions[0]),&p_kPa,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&hmol,&smol,&cvmol,&cpmol,&w,
&ierr,herr,errormessagelength);
if (static_cast<int>(ierr) > 0) { throw ValueError(format("DmolarT: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000;
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case DmassT_INPUTS:
{
// Call again, but this time with molar units
// D: [kg/m^3] / [kg/mol] -> [mol/m^3]
update(DmolarT_INPUTS, value1 / (double)_molar_mass, value2);
return;
}
case DmolarP_INPUTS:
{
// Unit conversion for REFPROP
rho_mol_L = 0.001*value1; p_kPa = 0.001*value2; // Want p in [kPa] in REFPROP
// Use flash routine to find properties
// from REFPROP: subroutine PDFLSH (p,D,z,t,Dl,Dv,x,y,q,e,h,s,cv,cp,w,ierr,herr)
PDFLSHdll(&p_kPa,&rho_mol_L,&(mole_fractions[0]),&_T,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&hmol,&smol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("DmolarP: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_rhomolar = value1;
_p = value2;
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case DmassP_INPUTS:
{
// Call again, but this time with molar units
// D: [kg/m^3] / [kg/mol] -> [mol/m^3]
update(DmolarP_INPUTS, value1 / (double)_molar_mass, value2);
return;
}
case DmolarHmolar_INPUTS:
{
// Unit conversion for REFPROP
_rhomolar = value1; rho_mol_L = 0.001*value1; hmol = value2; // Want rho in [mol/L] in REFPROP
// Use flash routine to find properties
// from REFPROP: subroutine DHFLSH (D,h,z,t,p,Dl,Dv,x,y,q,e,s,cv,cp,w,ierr,herr)
DHFLSHdll(&rho_mol_L,&hmol,&(mole_fractions[0]),&_T,&p_kPa,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&smol,&cvmol,&cpmol,&w,
&ierr,herr,errormessagelength);
if (static_cast<int>(ierr) > 0) { throw ValueError(format("DmolarHmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000;
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case DmassHmass_INPUTS:
{
// Call again, but this time with molar units
// D: [kg/m^3] / [kg/mol] -> [mol/m^3]
// H: [J/kg] * [kg/mol] -> [J/mol]
update(DmolarHmolar_INPUTS, value1 / (double)_molar_mass, value2 * (double)_molar_mass);
return;
}
case DmolarSmolar_INPUTS:
{
// Unit conversion for REFPROP
_rhomolar = value1; rho_mol_L = 0.001*value1; smol = value2; // Want rho in [mol/L] in REFPROP
// Use flash routine to find properties
// from REFPROP: subroutine DSFLSH (D,s,z,t,p,Dl,Dv,x,y,q,e,h,cv,cp,w,ierr,herr)
DSFLSHdll(&rho_mol_L,&smol,&(mole_fractions[0]),&_T,&p_kPa,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&hmol,&cvmol,&cpmol,&w,
&ierr,herr,errormessagelength);
if (static_cast<int>(ierr) > 0) { throw ValueError(format("DmolarSmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000;
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case DmassSmass_INPUTS:
{
// Call again, but this time with molar units
// D: [kg/m^3] / [kg/mol] -> [mol/m^3]
// S: [J/kg/K] * [kg/mol] -> [J/mol/K]
update(DmolarSmolar_INPUTS, value1 / (double)_molar_mass, value2 * (double)_molar_mass );
return;
}
case DmolarUmolar_INPUTS:
{
// Unit conversion for REFPROP
_rhomolar = value1; rho_mol_L = 0.001*value1; emol = value2; // Want rho in [mol/L] in REFPROP
// Use flash routine to find properties
// from REFPROP: subroutine DEFLSH (D,e,z,t,p,Dl,Dv,x,y,q,h,s,cv,cp,w,ierr,herr)
DEFLSHdll(&rho_mol_L,&emol,&(mole_fractions[0]),&_T,&p_kPa,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&hmol,&hmol,&cvmol,&cpmol,&w,
&ierr,herr,errormessagelength);
if (static_cast<int>(ierr) > 0) { throw ValueError(format("DmolarUmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000;
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case DmassUmass_INPUTS:
{
// Call again, but this time with molar units
// D: [kg/m^3] / [kg/mol] -> [mol/m^3]
// U: [J/mol] * [kg/mol] -> [J/mol]
update(DmolarUmolar_INPUTS, value1 / (double)_molar_mass, value2 * (double)_molar_mass);
return;
}
case HmolarP_INPUTS:
{
// Unit conversion for REFPROP
hmol = value1; p_kPa = 0.001*value2; // Want p in [kPa] in REFPROP
// Use flash routine to find properties
PHFLSHdll(&p_kPa,&hmol,&(mole_fractions[0]),&_T,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&smol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("HmolarPmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = value2;
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case HmassP_INPUTS:
{
// Call again, but this time with molar units
// H: [J/kg] * [kg/mol] -> [J/mol]
update(HmolarP_INPUTS, value1 * (double)_molar_mass, value2);
return;
}
case PSmolar_INPUTS:
{
// Unit conversion for REFPROP
p_kPa = 0.001*value1; smol = value2; // Want p in [kPa] in REFPROP
// Use flash routine to find properties
PSFLSHdll(&p_kPa,&smol,&(mole_fractions[0]),&_T,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&hmol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("PSmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = value1;
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case PSmass_INPUTS:
{
// Call again, but this time with molar units
// S: [J/kg/K] * [kg/mol] -> [J/mol/K]
update(PSmolar_INPUTS, value1, value2*(double)_molar_mass);
return;
}
case PUmolar_INPUTS:
{
// Unit conversion for REFPROP
p_kPa = 0.001*value1; emol = value2; // Want p in [kPa] in REFPROP
// Use flash routine to find properties
// from REFPROP: subroutine PEFLSH (p,e,z,t,D,Dl,Dv,x,y,q,h,s,cv,cp,w,ierr,herr)
PEFLSHdll(&p_kPa,&emol,&(mole_fractions[0]),&_T,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&hmol,&smol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("PUmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = value1;
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case PUmass_INPUTS:
{
// Call again, but this time with molar units
// U: [J/kg] * [kg/mol] -> [J/mol]
update(PUmolar_INPUTS, value1, value2*(double)_molar_mass);
return;
}
case HmolarSmolar_INPUTS:
{
// Unit conversion for REFPROP
hmol = value1; smol = value2;
HSFLSHdll(&hmol,&smol,&(mole_fractions[0]),&_T,&p_kPa,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("HmolarSmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000; // 1000 for conversion from kPa to Pa
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case HmassSmass_INPUTS:
{
// Call again, but this time with molar units
// H: [J/kg] * [kg/mol] -> [J/mol/K]
// S: [J/kg/K] * [kg/mol] -> [J/mol/K]
update(HmolarSmolar_INPUTS, value1 * (double)_molar_mass, value2 * (double)_molar_mass);
return;
}
case SmolarUmolar_INPUTS:
{
// Unit conversion for REFPROP
smol = value1; emol = value2;
// from REFPROP: subroutine ESFLSH (e,s,z,t,p,D,Dl,Dv,x,y,q,h,cv,cp,w,ierr,herr)
ESFLSHdll(&emol,&smol,&(mole_fractions[0]),&_T,&p_kPa,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&smol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("SmolarUmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000; // 1000 for conversion from kPa to Pa
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case SmassUmass_INPUTS:
{
// Call again, but this time with molar units
// S: [J/kg/K] * [kg/mol] -> [J/mol/K],
// U: [J/kg] * [kg/mol] -> [J/mol]
update(SmolarUmolar_INPUTS, value1 * (double)_molar_mass, value2 * (double)_molar_mass);
return;
}
case SmolarT_INPUTS:
{
// Unit conversion for REFPROP
smol = value1; _T = value2;
/*
c additional input--only for THFLSH, TSFLSH, and TEFLSH
c kr--flag specifying desired root for multi-valued inputs:
c 1 = return lower density root
c 2 = return higher density root
*/
long kr = 1;
// from REFPROP: subroutine TSFLSH (t,s,z,kr,p,D,Dl,Dv,x,y,q,e,h,cv,cp,w,ierr,herr)
TSFLSHdll(&_T,&smol,&(mole_fractions[0]),&kr,&p_kPa,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&hmol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("SmolarT: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000; // 1000 for conversion from kPa to Pa
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case SmassT_INPUTS:
{
// Call again, but this time with molar units
// S: [J/kg/K] * [kg/mol] -> [J/mol/K]
update(SmolarT_INPUTS, value1 * (double)_molar_mass, value2 );
return;
}
case HmolarT_INPUTS:
{
// Unit conversion for REFPROP
hmol = value1; _T = value2;
/*
c additional input--only for THFLSH, TSFLSH, and TEFLSH
c kr--flag specifying desired root for multi-valued inputs:
c 1 = return lower density root
c 2 = return higher density root
*/
long kr = 1;
// from REFPROP: subroutine THFLSH (t,h,z,kr,p,D,Dl,Dv,x,y,q,e,s,cv,cp,w,ierr,herr)
THFLSHdll(&_T,&hmol,&(mole_fractions[0]),&kr,&p_kPa,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&emol,&smol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("HmolarT: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000; // 1000 for conversion from kPa to Pa
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case HmassT_INPUTS:
{
// Call again, but this time with molar units
// H: [J/kg] * [kg/mol] -> [J/mol]
update(HmolarT_INPUTS, value1 * (double)_molar_mass, value2 );
return;
}
case TUmolar_INPUTS:
{
// Unit conversion for REFPROP
_T = value1; emol = value2;
/*
c additional input--only for THFLSH, TSFLSH, and TEFLSH
c kr--flag specifying desired root for multi-valued inputs:
c 1 = return lower density root
c 2 = return higher density root
*/
long kr = 1;
// from REFPROP: subroutine TEFLSH (t,e,z,kr,p,D,Dl,Dv,x,y,q,h,s,cv,cp,w,ierr,herr)
TEFLSHdll(&_T,&emol,&(mole_fractions[0]),&kr,&p_kPa,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&q,&hmol,&smol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
if (static_cast<int>(ierr) > 0) { throw ValueError(format("TUmolar: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000; // 1000 for conversion from kPa to Pa
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case TUmass_INPUTS:
{
// Call again, but this time with molar units
// U: [J/kg] * [kg/mol] -> [J/mol]
update(TUmolar_INPUTS, value1, value2 * (double)_molar_mass);
return;
}
case PQ_INPUTS:
{
// From REFPROP:
//additional input--only for TQFLSH and PQFLSH
// kq--flag specifying units for input quality
// kq = 1 quality on MOLAR basis [moles vapor/total moles]
// kq = 2 quality on MASS basis [mass vapor/total mass]
long kq = 1;
// c Estimate temperature, pressure, and compositions to be used
// c as initial guesses to SATTP
// c
// c inputs:
// c iFlsh--Phase flag: 0 - Flash calculation (T and P known)
// c 1 - T and xliq known, P and xvap returned
// c 2 - T and xvap known, P and xliq returned
// c 3 - P and xliq known, T and xvap returned
// c 4 - P and xvap known, T and xliq returned
// c if this value is negative, the retrograde point will be returned
// c t--temperature [K] (input or output)
// c p--pressure [MPa] (input or output)
// c x--composition [array of mol frac]
// c iGuess--if set to 1, all inputs are used as initial guesses for the calculation
// c outputs:
// c d--overall molar density [mol/L]
// c Dl--molar density [mol/L] of saturated liquid
// c Dv--molar density [mol/L] of saturated vapor
// c xliq--liquid phase composition [array of mol frac]
// c xvap--vapor phase composition [array of mol frac]
// c q--quality
// c ierr--error flag: 0 = successful
// c 1 = unsuccessful
// c herr--error string (character*255 variable if ierr<>0)
// Unit conversion for REFPROP
p_kPa = 0.001*value1; _Q = value2; // Want p in [kPa] in REFPROP
long iFlsh = 0, iGuess = 0;
if (std::abs(value2) < 1e-10){
iFlsh = 3; // bubble point
}
else if (std::abs(value2-1) < 1e-10){
iFlsh = 4; // dew point
}
if (iFlsh != 0){
// SATTP (t,p,x,iFlsh,iGuess,d,Dl,Dv,xliq,xvap,q,ierr,herr)
SATTPdll(&_T, &p_kPa, &(mole_fractions[0]), &iFlsh, &iGuess,
&rho_mol_L, &rhoLmol_L,&rhoVmol_L,
&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), &_Q,
&ierr,herr,errormessagelength);
}
else{
// Use flash routine to find properties
PQFLSHdll(&p_kPa,&_Q,&(mole_fractions[0]),&kq,&_T,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&emol,&hmol,&smol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
}
if (static_cast<int>(ierr) > 0) { throw ValueError(format("PQ: %s",herr).c_str()); }// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());}
// Set all cache values that can be set with unit conversion to SI
_p = value1;
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
case QT_INPUTS:
{
/* From REFPROP:
additional input--only for TQFLSH and PQFLSH
kq--flag specifying units for input quality
kq = 1 quality on MOLAR basis [moles vapor/total moles]
kq = 2 quality on MASS basis [mass vapor/total mass]
*/
long kq = 1;
// Unit conversion for REFPROP
_Q = value1; _T = value2;
// Use flash routine to find properties
long iFlsh = 0, iGuess = 0;
if (std::abs(value2) < 1e-10){
iFlsh = 1; // bubble point with T given
}
else if (std::abs(value2-1) < 1e-10){
iFlsh = 2; // dew point with T given
}
if (iFlsh != 0){
// SATTP (t,p,x,iFlsh,iGuess,d,Dl,Dv,xliq,xvap,q,ierr,herr)
SATTPdll(&_T, &p_kPa, &(mole_fractions[0]), &iFlsh, &iGuess,
&rho_mol_L, &rhoLmol_L,&rhoVmol_L,
&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), &_Q,
&ierr,herr,errormessagelength);
}
else{
TQFLSHdll(&_T,&_Q,&(mole_fractions[0]),&kq,&p_kPa,&rho_mol_L,
&rhoLmol_L,&rhoVmol_L,&(mole_fractions_liq[0]),&(mole_fractions_vap[0]), // Saturation terms
&emol,&hmol,&smol,&cvmol,&cpmol,&w, // Other thermodynamic terms
&ierr,herr,errormessagelength); // Error terms
}
if (static_cast<int>(ierr) > 0) {
throw ValueError(format("TQ(%s): %s",LoadedREFPROPRef.c_str(), herr).c_str());
}// TODO: else if (ierr < 0) {set_warning(format("%s",herr).c_str());
// Set all cache values that can be set with unit conversion to SI
_p = p_kPa*1000; // 1000 for conversion from kPa to Pa
_rhomolar = rho_mol_L*1000; // 1000 for conversion from mol/L to mol/m3
if (0)
{
_rhoLmolar = rhoLmol_L*1000; // 1000 for conversion from mol/L to mol/m3
_rhoVmolar = rhoVmol_L*1000; // 1000 for conversion from mol/L to mol/m3
}
break;
}
default:
{
throw ValueError(format("This pair of inputs [%s] is not yet supported", get_input_pair_short_desc(input_pair).c_str()));
}
};
// Set these common variables that are used in every flash calculation
_hmolar = hmol;
_smolar = smol;
_umolar = emol;
_cvmolar = cvmol;
_cpmolar = cpmol;
_speed_sound = w;
_tau = calc_T_critical()/_T;
_delta = _rhomolar/calc_rhomolar_critical();
_Q = q;
}
CoolPropDbl REFPROPMixtureBackend::call_phixdll(long itau, long idel)
{
this->check_loaded_fluid();
double val = 0, tau = _tau, delta = _delta;
if (PHIXdll == NULL){throw ValueError("PHIXdll function is not available in your version of REFPROP. Please upgrade");}
PHIXdll(&itau, &idel, &tau, &delta, &(mole_fractions[0]), &val);
return static_cast<CoolPropDbl>(val)/pow(static_cast<CoolPropDbl>(_delta),idel)/pow(static_cast<CoolPropDbl>(_tau),itau);
}
CoolPropDbl REFPROPMixtureBackend::call_phi0dll(long itau, long idel)
{
this->check_loaded_fluid();
double val = 0, tau = _tau, delta = _delta, __T = T(), __rho = rhomolar()/1000;
if (PHI0dll == NULL){throw ValueError("PHI0dll function is not available in your version of REFPROP. Please upgrade");}
PHI0dll(&itau, &idel, &__T, &__rho, &(mole_fractions[0]), &val);
return static_cast<CoolPropDbl>(val)/pow(delta,idel)/pow(tau,itau);
}
void REFPROP_SETREF(char hrf[3], long ixflag, double x0[1], double &h0, double &s0, double &T0, double &p0, long &ierr, char herr[255], long l1, long l2){
::load_REFPROP();
SETREFdll(hrf, &ixflag, x0, &h0, &s0, &T0, &p0, &ierr, herr, l1, l2);
}
} /* namespace CoolProp */
#ifdef ENABLE_CATCH
#include "CoolProp.h"
#include "catch.hpp"
TEST_CASE("Check REFPROP and CoolProp values agree","[REFPROP]")
{
SECTION("Saturation densities agree within 0.5% at T/Tc = 0.9")
{
std::vector<std::string> ss = strsplit(CoolProp::get_global_param_string("FluidsList"),',');
for (std::vector<std::string>::iterator it = ss.begin(); it != ss.end(); ++it)
{
std::string Name = (*it);
std::string RPName = CoolProp::get_fluid_param_string((*it),"REFPROP_name");
// Skip fluids not in REFPROP
if (RPName.find("N/A") == 0){continue;}
shared_ptr<CoolProp::AbstractState> S1(CoolProp::AbstractState::factory("HEOS", (*it)));
double Tr = S1->T_critical();
CHECK_NOTHROW(S1->update(CoolProp::QT_INPUTS, 0, Tr*0.9););
double rho_CP = S1->rhomolar();
shared_ptr<CoolProp::AbstractState> S2(CoolProp::AbstractState::factory("REFPROP", RPName));
CHECK_NOTHROW(S2->update(CoolProp::QT_INPUTS, 0, Tr*0.9););
double rho_RP = S2->rhomolar();
CAPTURE(Name);
CAPTURE(RPName);
CAPTURE(rho_CP);
CAPTURE(rho_RP);
double DH = (rho_RP-rho_CP)/rho_RP;
CHECK(std::abs(DH) < 0.05);
}
}
SECTION("Saturation specific heats agree within 0.5% at T/Tc = 0.9")
{
std::vector<std::string> ss = strsplit(CoolProp::get_global_param_string("FluidsList"),',');
for (std::vector<std::string>::iterator it = ss.begin(); it != ss.end(); ++it)
{
std::string Name = (*it);
std::string RPName = CoolProp::get_fluid_param_string((*it),"REFPROP_name");
// Skip fluids not in REFPROP
if (RPName.find("N/A") == 0){continue;}
shared_ptr<CoolProp::AbstractState> S1(CoolProp::AbstractState::factory("HEOS", (*it)));
double Tr = S1->T_critical();
S1->update(CoolProp::QT_INPUTS, 0, Tr*0.9);
double cp_CP = S1->cpmolar();
shared_ptr<CoolProp::AbstractState> S2(CoolProp::AbstractState::factory("REFPROP", RPName));
S2->update(CoolProp::QT_INPUTS, 0, Tr*0.9);
double cp_RP = S2->cpmolar();
CAPTURE(Name);
CAPTURE(RPName);
CAPTURE(cp_CP);
CAPTURE(cp_RP);
CAPTURE(0.9*Tr);
double Dcp = (cp_RP-cp_CP)/cp_RP;
CHECK(std::abs(Dcp) < 0.05);
}
}
SECTION("Enthalpy and entropy reference state")
{
std::vector<std::string> ss = strsplit(CoolProp::get_global_param_string("FluidsList"),',');
for (std::vector<std::string>::iterator it = ss.begin(); it != ss.end(); ++it)
{
std::string Name = (*it);
std::string RPName = CoolProp::get_fluid_param_string((*it),"REFPROP_name");
// Skip fluids not in REFPROP
if (RPName.find("N/A") == 0){continue;}
shared_ptr<CoolProp::AbstractState> S1(CoolProp::AbstractState::factory("HEOS", (*it)));
double Tr = S1->T_critical();
CHECK_NOTHROW(S1->update(CoolProp::QT_INPUTS, 0, 0.9*Tr););
double h_CP = S1->hmass();
double s_CP = S1->smass();
shared_ptr<CoolProp::AbstractState> S2(CoolProp::AbstractState::factory("REFPROP", RPName));
CHECK_NOTHROW(S2->update(CoolProp::QT_INPUTS, 0, 0.9*Tr););
double h_RP = S2->hmass();
double s_RP = S2->smass();
CAPTURE(Name);
CAPTURE(RPName);
CAPTURE(h_CP);
CAPTURE(h_RP);
CAPTURE(s_CP);
CAPTURE(s_RP);
double DH = (S1->hmass()-S2->hmass());
double DS = (S1->smass()-S2->smass());
CHECK(std::abs(DH/h_RP) < 0.01);
CHECK(std::abs(DS/s_RP) < 0.01);
}
}
}
TEST_CASE("Check trivial inputs for REFPROP work", "[REFPROP_trivial]")
{
const int num_inputs = 6;
std::string inputs[num_inputs] = {"T_triple", "T_critical", "p_critical", "molar_mass", "rhomolar_critical", "rhomass_critical"};
for (int i = 0; i < num_inputs; ++i){
std::ostringstream ss;
ss << "Check " << inputs[i];
SECTION(ss.str(),"")
{
double cp_val = CoolProp::PropsSI(inputs[i],"P",0,"T",0,"HEOS::Water");
double rp_val = CoolProp::PropsSI(inputs[i],"P",0,"T",0,"REFPROP::Water");
std::string errstr = CoolProp::get_global_param_string("errstring");
CAPTURE(errstr);
double err = (cp_val - rp_val)/cp_val;
CHECK(err < 1e-3);
}
}
}
#endif
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