2528df0f75
These changes make it unnecessary to copy header files around during the build process, which tends to confuse IDEs and debuggers. The headers which comprise Cantera's external C++ interface are now in the 'include' directory. All of the samples and demos are now in the 'samples' subdirectory.
222 lines
5 KiB
C++
222 lines
5 KiB
C++
// HFC134a
|
|
|
|
#include "HFC134a.h"
|
|
#include <math.h>
|
|
|
|
namespace tpx
|
|
{
|
|
|
|
const double
|
|
M = 102.032,
|
|
Tmn = 170.0,
|
|
Tmx = 455.0,
|
|
Tc = 374.18,
|
|
Pc = 4056290.0,
|
|
Roc = 508.0,
|
|
R = 81.48885644;
|
|
|
|
const double a134[] = {
|
|
0.5586817e-1,
|
|
0.4982230,
|
|
0.2458698e-1,
|
|
0.8570145e-3,
|
|
0.4788584e-3,
|
|
-0.1800808e1,
|
|
0.2671641,
|
|
-0.4781652e-1,
|
|
0.1423987e-1,
|
|
0.3324062,
|
|
-0.7485907e-2,
|
|
0.1017263e-3,
|
|
-0.5184567,
|
|
-0.8692288e-1,
|
|
0.2057144,
|
|
-0.5000457e-2,
|
|
0.4603262e-3,
|
|
-0.3497836e-2,
|
|
0.6995038e-2,
|
|
-0.1452184e-1,
|
|
-0.1285458e-3
|
|
};
|
|
|
|
const double t134[] = {
|
|
-0.5, 0.0, 0.0, 0.0, 1.5, 1.5, 2.0, 2.0, 1.0, 3.0, 5.0,
|
|
1.0, 5.0, 5.0, 6.0, 10.0, 10.0, 10.0, 18.0, 22.0, 50.0
|
|
};
|
|
|
|
const int d134[] = {
|
|
2, 1, 3, 6, 6, 1, 1, 2, 5, 2, 2,
|
|
4, 1, 4, 1, 2, 4, 1, 5, 3, 10
|
|
};
|
|
|
|
const double b134[] = {
|
|
-1.019535,
|
|
9.047135,
|
|
-1.629789,
|
|
-9.723916,
|
|
-3.927170
|
|
};
|
|
|
|
double HFC134a::fp()
|
|
{
|
|
double sum1 = 0.0, sum2 = 0.0, sum3 = 0.0,
|
|
sum4 = 0.0, sum5 = 0.0;
|
|
double tau = Tc/T;
|
|
double delta = Rho/Roc;
|
|
|
|
double phi0 = b134[0] + b134[1]*tau + b134[2]*log(tau)
|
|
+ log(delta) + b134[3]/sqrt(tau) + b134[4]*pow(tau,-0.75);
|
|
int i;
|
|
for (i = 0; i<8; i++) {
|
|
sum1 += a134[i]*pow(tau,t134[i])*pow(delta,d134[i]);
|
|
}
|
|
for (i = 8; i<11; i++) {
|
|
sum2 += a134[i]*pow(tau,t134[i])*pow(delta,d134[i]);
|
|
}
|
|
for (i = 11; i<17; i++) {
|
|
sum3 += a134[i]*pow(tau,t134[i])*pow(delta,d134[i]);
|
|
}
|
|
for (i = 17; i<20; i++) {
|
|
sum4 += a134[i]*pow(tau,t134[i])*pow(delta,d134[i]);
|
|
}
|
|
sum5 = a134[20]*pow(tau,t134[20])*pow(delta,d134[20]);
|
|
double phir = sum1 + exp(-delta)*sum2 + exp(-delta*delta)*sum3
|
|
+ exp(-delta*delta*delta)*sum4
|
|
+ exp(-delta*delta*delta*delta)*sum5;
|
|
return R*T*(phir + phi0);
|
|
}
|
|
|
|
double HFC134a::up()
|
|
{
|
|
double sum1 = 0.0, sum2 = 0.0, sum3 = 0.0,
|
|
sum4 = 0.0, sum5 = 0.0;
|
|
double tau = Tc/T;
|
|
double delta = Rho/Roc;
|
|
|
|
double phi0t = b134[1]*tau + b134[2]
|
|
- 0.5*b134[3]*pow(tau,-0.5) - 0.75*b134[4]*pow(tau,-0.75);
|
|
int i;
|
|
for (i = 0; i<8; i++) {
|
|
sum1 += a134[i]*t134[i]*pow(tau,t134[i])*pow(delta,d134[i]);
|
|
}
|
|
for (i = 8; i<11; i++) {
|
|
sum2 += a134[i]*t134[i]*pow(tau,t134[i])*pow(delta,d134[i]);
|
|
}
|
|
for (i = 11; i<17; i++) {
|
|
sum3 += a134[i]*t134[i]*pow(tau,t134[i])*pow(delta,d134[i]);
|
|
}
|
|
for (i = 17; i<20; i++) {
|
|
sum4 += a134[i]*t134[i]*pow(tau,t134[i])*pow(delta,d134[i]);
|
|
}
|
|
sum5 = a134[20]*t134[20]*pow(tau,t134[20])*pow(delta,d134[20]);
|
|
double phirt = sum1 + exp(-delta)*sum2 + exp(-delta*delta)*sum3
|
|
+ exp(-delta*delta*delta)*sum4
|
|
+ exp(-delta*delta*delta*delta)*sum5;
|
|
return R*T*(phirt + phi0t) + m_energy_offset;
|
|
}
|
|
|
|
double HFC134a::Pp()
|
|
{
|
|
double sum1 = 0.0, sum2 = 0.0, sum3 = 0.0,
|
|
sum4 = 0.0, sum5 = 0.0;
|
|
double tau = Tc/T;
|
|
double delta = Rho/Roc;
|
|
|
|
double phi0d = 1.0/delta;
|
|
|
|
int i;
|
|
for (i = 0; i<8; i++) {
|
|
sum1 += a134[i]*pow(tau,t134[i])*d134[i]*pow(delta,d134[i]-1);
|
|
}
|
|
for (i = 8; i<11; i++) {
|
|
sum2 += a134[i]*pow(tau,t134[i])*(d134[i] - delta)*pow(delta,d134[i]-1);
|
|
}
|
|
sum2 *= exp(-delta);
|
|
double dk = delta*delta;
|
|
for (i = 11; i<17; i++) {
|
|
sum3 += a134[i]*pow(tau,t134[i])*(d134[i] - 2.0*dk)*pow(delta,d134[i]-1);
|
|
}
|
|
sum3 *= exp(-dk);
|
|
dk *= delta;
|
|
for (i = 17; i<20; i++) {
|
|
sum4 += a134[i]*pow(tau,t134[i])*(d134[i] - 3.0*dk)*pow(delta,d134[i]-1);
|
|
}
|
|
sum4 *= exp(-dk);
|
|
dk *= delta;
|
|
sum5 = a134[20]*pow(tau,t134[20])*(d134[20] - 4.0*dk)*pow(delta,d134[20]-1);
|
|
sum5 *= exp(-dk);
|
|
double phird = sum1 + sum2 + sum3 + sum4 + sum5;
|
|
return R*T*delta*delta*Roc*(phird + phi0d);
|
|
}
|
|
|
|
|
|
double HFC134a::Psat()
|
|
{
|
|
if ((T < Tmn) || (T > Tc)) {
|
|
set_Err(TempError);
|
|
}
|
|
double x1 = T/Tc;
|
|
double x2 = 1.0 - x1;
|
|
double f = -7.686556*x2 + 2.311791*pow(x2,1.5)
|
|
- 2.039554*x2*x2 - 3.583758*pow(x2,4);
|
|
return Pc*exp(f/x1);
|
|
}
|
|
|
|
/*
|
|
double HFC134a::dPsatdT(){
|
|
if ((T < Tmn) || (T > Tc)) set_Err(TempError);
|
|
double x1 = T/Tc;
|
|
double x2 = 1.0 - x1;
|
|
double f = -7.686556*x2 + 2.311791*pow(x2,1.5)
|
|
- 2.039554*x2*x2 - 3.583758*pow(x2,4);
|
|
double fp = -7.686556 + 1.5*2.311791*pow(x2,0.5)
|
|
- 2.0*2.039554*x2 - 4.0*3.583758*pow(x2,3);
|
|
return -Pc*exp(f/x1)*(fp/T + f/(x1*T));
|
|
}
|
|
*/
|
|
|
|
double HFC134a::ldens()
|
|
{
|
|
if ((T < Tmn) || (T > Tc)) {
|
|
set_Err(TempError);
|
|
}
|
|
double x1 = T/Tc;
|
|
double x2 = 1.0 - x1;
|
|
return 518.2 + 884.13*pow(x2,1.0/3.0) + 485.84*pow(x2,2.0/3.0)
|
|
+ 193.29*pow(x2,10.0/3.0);
|
|
}
|
|
|
|
double HFC134a::Tcrit()
|
|
{
|
|
return 374.21;
|
|
}
|
|
double HFC134a::Pcrit()
|
|
{
|
|
return 4059280.0;
|
|
}
|
|
double HFC134a::Vcrit()
|
|
{
|
|
return 1.0/511.95;
|
|
}
|
|
double HFC134a::Tmin()
|
|
{
|
|
return Tmn;
|
|
}
|
|
double HFC134a::Tmax()
|
|
{
|
|
return Tmx;
|
|
}
|
|
char* HFC134a::name()
|
|
{
|
|
return (char*) m_name.c_str();
|
|
}
|
|
char* HFC134a::formula()
|
|
{
|
|
return (char*) m_formula.c_str();
|
|
}
|
|
double HFC134a::MolWt()
|
|
{
|
|
return M;
|
|
}
|
|
|
|
}
|