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steam_property_calc.c
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steam_property_calc.c
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#include <stdio.h>
#include <math.h>
#include "if97_general.h"
#include "region_calc.h"
#include "region1.h"
#include "region2.h"
#include "region3.h"
#include "region5.h"
#include "steam_property_calc.h"
static double coeff_visc1[4]={
1.67752,2.20462,0.6366564,-0.241605
};
static double coeff_visc2[6][7]={
5.20094e-1,2.22531e-1,-2.81378e-1,1.61913e-1,-3.25372e-2,0,0,
8.50895e-2,9.99115e-1,-9.06851e-1,2.57399e-1,0,0,0,
-1.08374,1.88797,-7.72479e-1,0,0,0,0,
-2.89555e-1,1.26613,-4.89837e-1,0,6.98452e-2,0,-4.35673e-3,
0,0,-2.57040e-1,0,0,8.72102e-3,0,
0,1.20573e-1,0,0,0,0,-5.93264e-4,
};
static double coeff_thcond1[5]={
2.443221e-3,1.323095e-2,6.770357e-3,-3.454586e-3,4.096266e-4
};
static double coeff_thcond2[5][6]={
1.60397357,-0.646013523,0.111443906,0.102997357,-0.0504123634,0.00609859258,
2.33771842,-2.78843778,1.53616167,-0.463045512,0.0832827019,-0.00719201245,
2.19650529,-4.54580785,3.55777244,-1.40944978,0.275418278,-0.0205938816,
-1.21051378,1.60812989,-0.621178141,0.0716373224,0,0,
-2.7203370,4.57586331,-3.18369245,1.1168348,-0.19268305,0.012913842,
};
static double coeff_thcond3[6][5]={
6.53786807199516,6.52717759281799,5.35500529896124,1.55225959906681,1.11999926419994,
-5.61149954923348,-6.30816983387575,-3.96415689925446,0.464621290821181,0.595748562571649,
3.39624167361325,8.08379285492595,8.91990208918795,8.93237374861479,9.8895256507892,
-2.27492629730878,-9.82240510197603,-12.033872950579,-11.0321960061126,-10.325505114704,
10.2631854662709,12.1358413791395,9.19494865194302,6.1678099993336,4.66861294457414,
1.97815050331519,-5.54349664571295,-2.16866274479712,-0.965458722086812,-0.503243546373828,
};
static double coeff_thcond4[6][5]={
6.53786807199516,6.52717759281799,5.35500529896124,1.55225959906681,1.11999926419994,
-5.61149954923348,-6.30816983387575,-3.96415689925446,0.464621290821181,0.595748562571649,
3.39624167361325,8.08379285492595,8.91990208918795,8.93237374861479,9.8895256507892,
-2.27492629730878,-9.82240510197603,-12.033872950579,-11.0321960061126,-10.325505114704,
10.2631854662709,12.1358413791395,9.19494865194302,6.1678099993336,4.66861294457414,
1.97815050331519,-5.54349664571295,-2.16866274479712,-0.965458722086812,-0.503243546373828,
};
void print_prop(steam_prop *p_prop)
{
printf("%.14lf\n%.14lf\n%.14lf\n%.14lf\n%.14lf\n%.14lf\n%.14lf\n%.14lf\n%.14lf\n%.14lf\n",p_prop->pressure,p_prop->temp,p_prop->spe_vol,p_prop->dens,p_prop->spe_energy,p_prop->spe_entr,p_prop->spe_enth,p_prop->spe_h_v,p_prop->spe_h_p,p_prop->speed_sound);
}
int hs_find_tsat(double *t, double spe_enth, double spe_entr)
{
double tt1,tt2,ps1,ps2,xs1,xs2,xh1,xh2,ttm,psm,xhm,xsm;
steam_prop propw,props,propmw,propms;
int i=0;
tt1=MIN_TEMP;
tt2=INTER_TEMP1;
ps1=calc_sat_pres(tt1);
ps2=calc_sat_pres(tt2);
steam_prop_calc_r1(ps1,tt1,&propw);
steam_prop_calc_r2(ps1,tt1,&props);
xs1=(spe_entr-propw.spe_entr)/(props.spe_entr-propw.spe_entr);
xh1=(spe_enth-propw.spe_enth)/(props.spe_enth-propw.spe_enth);
// printf("\n%lf,%lf\n",xh1,xs1);
steam_prop_calc_r1(ps2,tt2,&propw);
steam_prop_calc_r2(ps2,tt2,&props);
xs2=(spe_entr-propw.spe_entr)/(props.spe_entr-propw.spe_entr);
xh2=(spe_enth-propw.spe_enth)/(props.spe_enth-propw.spe_enth);
// printf("\n%lf,%lf\n",xh2,xs2);
if((xh1-xs1)*(xh2-xs2)>0)
{
*t=-1;
return -1;
}
do
{
ttm=0.5*(tt1+tt2);
// printf("\n............%lf\n",ttm);
psm=calc_sat_pres(ttm);
// printf("\n...........%lf,%lf\n",psm,ttm);
steam_prop_calc_r1(psm,ttm,&propmw);
steam_prop_calc_r2(psm,ttm,&propms);
xsm=(spe_entr-propmw.spe_entr)/(propms.spe_entr-propmw.spe_entr);
xhm=(spe_enth-propmw.spe_enth)/(propms.spe_enth-propmw.spe_enth);
// printf("\n...........%lf,%lf\n",xhm,xsm);
i++;
if(fabs(xhm-xsm)<1e-6)
{
*t=ttm;
return 0;
}
else if((xhm-xsm)*(xh1-xs1)>0)
{
tt1=ttm;
}
else if((xhm-xsm)*(xh2-xs2)>0)
{
tt2=ttm;
}
}while(i<200);
if(i==200)
{
*t=-1;
return -1;
}
}
//normal version
int steam_prop_calc_pt(double pressure, double temp, steam_prop *p_prop, steam_prop *p_prop_bkup)
{
int region_code;
int calc_flag;
p_prop_bkup->pressure=-1;
p_prop_bkup->temp=-1;
p_prop_bkup->spe_vol=-1;
p_prop_bkup->dens=-1;
p_prop_bkup->spe_energy=-1;
p_prop_bkup->spe_entr=-1;
p_prop_bkup->spe_enth=-1;
p_prop_bkup->spe_h_v=-1;
p_prop_bkup->spe_h_p=-1;
p_prop_bkup->speed_sound=-1;
p_prop_bkup->drdp=-1;
region_code=region(pressure,temp);
// printf("!!!!%d\n",region_code);
if(region_code==-1)
{
printf("\nFATAL ERROR: PRESSURE/TEMP EXCEEDS BOUNDARIES.\n");
return -1;
}
else if(region_code==1)
{
steam_prop_calc_r1(pressure,temp,p_prop);
return 0;
}
else if(region_code==2)
{
steam_prop_calc_r2(pressure,temp,p_prop);
return 0;
}
else if(region_code==4)
{
steam_prop_calc_r1(pressure,temp,p_prop);
steam_prop_calc_r2(pressure,temp,p_prop_bkup);
return 1;
}
else if(region_code==3)
{
calc_flag=steam_prop_calc_r3(pressure,temp,p_prop);
if(calc_flag==-1)
{
printf("\nFATAL ERROR: DENSITY ITERATION NOT CONVERGED.\n");
return -2;
}
else
{
// print_prop(p_prop);
return 0;
}
}
else if(region_code==5)
{
steam_prop_calc_r5(pressure,temp,p_prop);
return 0;
}
}
int steam_prop_calc_pr(double pressure, double dens, steam_prop* p_prop)
{
int rc,flag;
double temp,temp_sat;
double pres_h,pres_l,vapor_frac;
steam_prop prop_w,prop_s;
pres_l=calc_sat_pres(MIN_TEMP);
pres_h=calc_sat_pres(INTER_TEMP1);
// printf("\n\n%lf,%lf,%lf\n",pres_h,pres_l);
if(pressure>pres_l&&pressure<pres_h)
{
temp_sat=tsatp(pressure);
steam_prop_calc_r1(pressure,temp_sat,&prop_w);
steam_prop_calc_r2(pressure,temp_sat,&prop_s);
// printf("\n....%lf,%lf,%lf\n",dens,prop_w.dens,prop_s.dens);
if(dens>prop_s.dens&&dens<prop_w.dens)
{
// printf("\n,,,,,,,,,,,,,,,,,,,,,,\n");
vapor_frac=prop_s.dens*(prop_w.dens-dens)/(dens*(prop_w.dens-prop_s.dens));
p_prop->pressure=pressure;
p_prop->temp=temp_sat;
p_prop->spe_vol=1/dens;
p_prop->dens=dens;
p_prop->spe_energy=vapor_frac*prop_s.spe_energy+(1-vapor_frac)*prop_w.spe_energy;
p_prop->spe_entr=vapor_frac*prop_s.spe_entr+(1-vapor_frac)*prop_w.spe_entr;
p_prop->spe_enth=vapor_frac*prop_s.spe_enth+(1-vapor_frac)*prop_w.spe_enth;
p_prop->spe_h_v=vapor_frac*prop_s.spe_h_v+(1-vapor_frac)*prop_w.spe_h_v;
p_prop->spe_h_p=vapor_frac*prop_s.spe_h_p+(1-vapor_frac)*prop_w.spe_h_p;
p_prop->speed_sound=vapor_frac*prop_s.speed_sound+(1-vapor_frac)*prop_w.speed_sound;
p_prop->drdp=vapor_frac*prop_s.drdp+(1-vapor_frac)*prop_w.drdp;
p_prop->vapor_fraction=vapor_frac;
//solve vapor fraction and properties;
return 0;
}
}
// printf("\n\tPREEEEEEEEEEEEEEEEEEEEEEE\n");
flag=temp_pr_r1(&temp,pressure,dens);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r1(pressure,temp,p_prop);
if(rc==1&&fabs((p_prop->dens-dens)/dens<1e-4))
{
p_prop->dens=dens;
return 0;
}
}
flag=temp_pr_r2(&temp,pressure,dens);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r2(pressure,temp,p_prop);
if(rc==2&&fabs((p_prop->dens-dens)/dens<1e-4))
{
p_prop->dens=dens;
return 0;
}
}
flag=temp_pr_r3(&temp,pressure,dens);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r3(pressure,temp,p_prop);
if(rc==3&&fabs((p_prop->dens-dens)/dens<1e-4))
{
p_prop->dens=dens;
return 0;
}
}
flag=temp_pr_r5(&temp,pressure,dens);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r5(pressure,temp,p_prop);
if(rc==5&&fabs((p_prop->dens-dens)/dens<1e-4))
{
p_prop->dens=dens;
return 0;
}
}
return -1;
}
int steam_prop_calc_pu(double pressure, double spe_ener, steam_prop* p_prop)
{
int rc,flag;
double temp,r3dens;
double pres_h,pres_l,temp_sat,vapor_frac;
steam_prop prop_s,prop_w;
pres_l=calc_sat_pres(MIN_TEMP);
pres_h=calc_sat_pres(INTER_TEMP1);
if(pressure>pres_l&&pressure<pres_h)
{
temp_sat=tsatp(pressure);
steam_prop_calc_r1(pressure,temp_sat,&prop_w);
steam_prop_calc_r2(pressure,temp_sat,&prop_s);
if(spe_ener<prop_s.spe_energy&&spe_ener>prop_w.spe_energy)
{
vapor_frac=(spe_ener-prop_w.spe_energy)/(prop_s.spe_energy-prop_w.spe_energy);
p_prop->pressure=pressure;
p_prop->temp=temp_sat;
p_prop->spe_vol=vapor_frac*prop_s.spe_vol+(1-vapor_frac)*prop_w.spe_vol;
p_prop->dens=1/p_prop->spe_vol;
p_prop->spe_energy=spe_ener;
p_prop->spe_entr=vapor_frac*prop_s.spe_entr+(1-vapor_frac)*prop_w.spe_entr;
p_prop->spe_enth=vapor_frac*prop_s.spe_enth+(1-vapor_frac)*prop_w.spe_enth;
p_prop->spe_h_v=vapor_frac*prop_s.spe_h_v+(1-vapor_frac)*prop_w.spe_h_v;
p_prop->spe_h_p=vapor_frac*prop_s.spe_h_p+(1-vapor_frac)*prop_w.spe_h_p;
p_prop->speed_sound=vapor_frac*prop_s.speed_sound+(1-vapor_frac)*prop_w.speed_sound;
p_prop->drdp=vapor_frac*prop_s.drdp+(1-vapor_frac)*prop_w.drdp;
p_prop->vapor_fraction=vapor_frac;
//solve vapor fraction and properties;
return 0;
}
}
flag=temp_pu_r1(&temp,pressure,spe_ener);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r1(pressure,temp,p_prop);
if(rc==1&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->spe_energy=spe_ener;
return 0;
}
}
flag=temp_pu_r2(&temp,pressure,spe_ener);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r2(pressure,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->spe_energy=spe_ener;
return 0;
}
}
flag=tr_pu_r3(&temp,&r3dens,pressure,spe_ener);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r3(pressure,temp,p_prop);
if(rc==3&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->pressure=pressure;
p_prop->spe_energy=spe_ener;
return 0;
}
}
flag=temp_pu_r5(&temp,pressure,spe_ener);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r5(pressure,temp,p_prop);
if(rc==5&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->spe_energy=spe_ener;
return 0;
}
}
return -1;
}
int steam_prop_calc_ph(double pressure, double spe_enth, steam_prop* p_prop)
{
int rc,flag;
double temp,r3dens;
double pres_h,pres_l,temp_sat,vapor_frac;
steam_prop prop_s,prop_w;
pres_l=calc_sat_pres(MIN_TEMP);
pres_h=calc_sat_pres(INTER_TEMP1);
if(pressure>pres_l&&pressure<pres_h)
{
temp_sat=tsatp(pressure);
steam_prop_calc_r1(pressure,temp_sat,&prop_w);
steam_prop_calc_r2(pressure,temp_sat,&prop_s);
if(spe_enth<prop_s.spe_enth&&spe_enth>prop_w.spe_enth)
{
vapor_frac=(spe_enth-prop_w.spe_enth)/(prop_s.spe_enth-prop_w.spe_enth);
p_prop->pressure=pressure;
p_prop->temp=temp_sat;
p_prop->spe_vol=vapor_frac*prop_s.spe_vol+(1-vapor_frac)*prop_w.spe_vol;
p_prop->dens=1/p_prop->spe_vol;
p_prop->spe_energy=vapor_frac*prop_s.spe_energy+(1-vapor_frac)*prop_w.spe_energy;
p_prop->spe_entr=vapor_frac*prop_s.spe_entr+(1-vapor_frac)*prop_w.spe_entr;
p_prop->spe_enth=spe_enth;
p_prop->spe_h_v=vapor_frac*prop_s.spe_h_v+(1-vapor_frac)*prop_w.spe_h_v;
p_prop->spe_h_p=vapor_frac*prop_s.spe_h_p+(1-vapor_frac)*prop_w.spe_h_p;
p_prop->speed_sound=vapor_frac*prop_s.speed_sound+(1-vapor_frac)*prop_w.speed_sound;
p_prop->drdp=vapor_frac*prop_s.drdp+(1-vapor_frac)*prop_w.drdp;
p_prop->vapor_fraction=vapor_frac;
//solve vapor fraction and properties;
return 0;
}
}
// printf("\nEEEEEEEEEEEEEEEEE\n\n");
flag=temp_ph_r1(&temp,pressure,spe_enth);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r1(pressure,temp,p_prop);
if(rc==1&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=temp_ph_r2(&temp,pressure,spe_enth);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r2(pressure,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=tr_ph_r3(&temp,&r3dens,pressure,spe_enth);
if(flag==0)
{
// printf("\nEEEEEEEEEE%lf,%lf",temp,r3dens);
rc=region(pressure,temp);
steam_prop_calc_r3(pressure,temp,p_prop);
if(rc==3&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->pressure=pressure;
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=temp_ph_r5(&temp,pressure,spe_enth);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r5(pressure,temp,p_prop);
if(rc==5&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_enth=spe_enth;
return 0;
}
}
return -1;
}
int steam_prop_calc_ps(double pressure, double spe_entr, steam_prop* p_prop)
{
int rc,flag;
double temp,r3dens;
double pres_h,pres_l,temp_sat,vapor_frac;
steam_prop prop_s,prop_w;
pres_l=calc_sat_pres(MIN_TEMP);
pres_h=calc_sat_pres(INTER_TEMP1);
if(pressure>pres_l&&pressure<pres_h)
{
temp_sat=tsatp(pressure);
steam_prop_calc_r1(pressure,temp_sat,&prop_w);
steam_prop_calc_r2(pressure,temp_sat,&prop_s);
if(spe_entr<prop_s.spe_entr&&spe_entr>prop_w.spe_entr)
{
vapor_frac=(spe_entr-prop_w.spe_entr)/(prop_s.spe_entr-prop_w.spe_entr);
p_prop->pressure=pressure;
p_prop->temp=temp_sat;
p_prop->spe_vol=vapor_frac*prop_s.spe_vol+(1-vapor_frac)*prop_w.spe_vol;
p_prop->dens=1/p_prop->spe_vol;
p_prop->spe_energy=vapor_frac*prop_s.spe_energy+(1-vapor_frac)*prop_w.spe_energy;
p_prop->spe_entr=spe_entr;
p_prop->spe_enth=vapor_frac*prop_s.spe_enth+(1-vapor_frac)*prop_w.spe_enth;
p_prop->spe_h_v=vapor_frac*prop_s.spe_h_v+(1-vapor_frac)*prop_w.spe_h_v;
p_prop->spe_h_p=vapor_frac*prop_s.spe_h_p+(1-vapor_frac)*prop_w.spe_h_p;
p_prop->speed_sound=vapor_frac*prop_s.speed_sound+(1-vapor_frac)*prop_w.speed_sound;
p_prop->drdp=vapor_frac*prop_s.drdp+(1-vapor_frac)*prop_w.drdp;
p_prop->vapor_fraction=vapor_frac;
//solve vapor fraction and properties;
return 0;
}
}
flag=temp_ps_r1(&temp,pressure,spe_entr);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r1(pressure,temp,p_prop);
if(rc==1&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->spe_entr=spe_entr;
return 0;
}
}
flag=temp_ps_r2(&temp,pressure,spe_entr);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r2(pressure,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->spe_entr=spe_entr;
return 0;
}
}
flag=tr_ps_r3(&temp,&r3dens,pressure,spe_entr);
// printf("\t#########%lf,%lf",temp,1/r3dens);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r3(pressure,temp,p_prop);
if(rc==3&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->pressure=pressure;
p_prop->spe_entr=spe_entr;
return 0;
}
}
flag=temp_ps_r5(&temp,pressure,spe_entr);
if(flag==0)
{
rc=region(pressure,temp);
steam_prop_calc_r5(pressure,temp,p_prop);
if(rc==5&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->spe_entr=spe_entr;
return 0;
}
}
return -1;
}
int steam_prop_calc_tr(double temp, double dens, steam_prop* p_prop)
{
int rc,flag;
double pres,pres_sat,vapor_frac;
steam_prop prop_w,prop_s;
if(temp>INTER_TEMP1)
{
flag=pres_tr_r2(&pres,temp,dens);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
if(rc==2&&fabs((p_prop->dens-dens)/dens)<1e-4)
{
p_prop->dens=dens;
return 0;
}
}
flag=pres_tr_r3(&pres,temp,dens);
// printf("\n.............%d,%lf\n",flag,pres);
if(flag==0)
{
rc=region(pres,temp);
// printf("...........%d\n",rc);
steam_prop_calc_r3(pres,temp,p_prop);
if(rc==3&&fabs((p_prop->dens-dens)/dens)<1e-4)
{
p_prop->temp=temp;
p_prop->dens=dens;
return 0;
}
}
flag=pres_tr_r5(&pres,temp,dens);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r5(pres,temp,p_prop);
if(rc==5&&fabs((p_prop->dens-dens)/dens)<1e-4)
{
p_prop->dens=dens;
return 0;
}
}
return -1;
}
else
{
flag=pres_tr_r1(&pres,temp,dens);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r1(pres,temp,p_prop);
if(rc==1&&fabs((p_prop->dens-dens)/dens)<1e-4)
{
p_prop->dens=dens;
return 0;
}
}
flag=pres_tr_r2(&pres,temp,dens);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
if(rc==2&&fabs((p_prop->dens-dens)/dens)<1e-4)
{
p_prop->dens=dens;
return 0;
}
}
pres_sat=calc_sat_pres(temp);
steam_prop_calc_r1(pres_sat,temp,&prop_w);
steam_prop_calc_r2(pres_sat,temp,&prop_s);
if(dens>prop_s.dens&&dens<prop_w.dens)
{
vapor_frac=prop_s.dens*(prop_w.dens-dens)/(dens*(prop_w.dens-prop_s.dens));
p_prop->pressure=pres_sat;
p_prop->temp=temp;
p_prop->spe_vol=1/dens;
p_prop->dens=dens;
p_prop->spe_energy=vapor_frac*prop_s.spe_energy+(1-vapor_frac)*prop_w.spe_energy;
p_prop->spe_entr=vapor_frac*prop_s.spe_entr+(1-vapor_frac)*prop_w.spe_entr;
p_prop->spe_enth=vapor_frac*prop_s.spe_enth+(1-vapor_frac)*prop_w.spe_enth;
p_prop->spe_h_v=vapor_frac*prop_s.spe_h_v+(1-vapor_frac)*prop_w.spe_h_v;
p_prop->spe_h_p=vapor_frac*prop_s.spe_h_p+(1-vapor_frac)*prop_w.spe_h_p;
p_prop->speed_sound=vapor_frac*prop_s.speed_sound+(1-vapor_frac)*prop_w.speed_sound;
p_prop->drdp=vapor_frac*prop_s.drdp+(1-vapor_frac)*prop_w.drdp;
p_prop->vapor_fraction=vapor_frac;
//solve vapor fraction and properties;
return 0;
}
return -1;
}
}
int steam_prop_calc_tu(double temp, double spe_ener, steam_prop* p_prop)
{
int rc,flag;
double pres,pres_sat,vapor_frac;
steam_prop prop_w,prop_s;
if(temp>INTER_TEMP1)
{
flag=pres_tu_r2(&pres,temp,spe_ener);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->spe_energy=spe_ener;
return 0;
}
}
flag=pres_tu_r3(&pres,temp,spe_ener);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r3(pres,temp,p_prop);
if(rc==3&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->temp=temp;
p_prop->spe_energy=spe_ener;
return 0;
}
}
flag=pres_tu_r5(&pres,temp,spe_ener);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r5(pres,temp,p_prop);
if(rc==5&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->spe_energy=spe_ener;
return 0;
}
}
return -1;
}
else
{
flag=pres_tu_r1(&pres,temp,spe_ener);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r1(pres,temp,p_prop);
if(rc==1&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->spe_energy=spe_ener;
return 0;
}
}
flag=pres_tu_r2(&pres,temp,spe_ener);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_energy-spe_ener)/spe_ener)<1e-4)
{
p_prop->spe_energy=spe_ener;
return 0;
}
}
pres_sat=calc_sat_pres(temp);
steam_prop_calc_r1(pres_sat,temp,&prop_w);
steam_prop_calc_r2(pres_sat,temp,&prop_s);
if(spe_ener>prop_w.spe_energy&&spe_ener<prop_s.spe_energy)
{
vapor_frac=(spe_ener-prop_w.spe_energy)/(prop_s.spe_energy-prop_w.spe_energy);
p_prop->pressure=pres_sat;
p_prop->temp=temp;
p_prop->spe_vol=vapor_frac*prop_s.spe_vol+(1-vapor_frac)*prop_w.spe_vol;
p_prop->dens=1/p_prop->spe_vol;
p_prop->spe_energy=spe_ener;
p_prop->spe_entr=vapor_frac*prop_s.spe_entr+(1-vapor_frac)*prop_w.spe_entr;
p_prop->spe_enth=vapor_frac*prop_s.spe_enth+(1-vapor_frac)*prop_w.spe_enth;
p_prop->spe_h_v=vapor_frac*prop_s.spe_h_v+(1-vapor_frac)*prop_w.spe_h_v;
p_prop->spe_h_p=vapor_frac*prop_s.spe_h_p+(1-vapor_frac)*prop_w.spe_h_p;
p_prop->speed_sound=vapor_frac*prop_s.speed_sound+(1-vapor_frac)*prop_w.speed_sound;
p_prop->drdp=vapor_frac*prop_s.drdp+(1-vapor_frac)*prop_w.drdp;
p_prop->vapor_fraction=vapor_frac;
//solve vapor fraction and properties;
return 0;
}
return -1;
}
}
int steam_prop_calc_th(double temp, double spe_enth, steam_prop* p_prop)
{
int rc,flag;
double pres,pres_sat,vapor_frac;
steam_prop prop_w,prop_s;
if(temp>INTER_TEMP1)
{
flag=pres_th_r2(&pres,temp,spe_enth);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=pres_th_r3(&pres,temp,spe_enth);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r3(pres,temp,p_prop);
if(rc==3&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->temp=temp;
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=pres_th_r5(&pres,temp,spe_enth);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r5(pres,temp,p_prop);
if(rc==5&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_enth=spe_enth;
return 0;
}
}
return -1;
}
else
{
flag=pres_th_r1(&pres,temp,spe_enth);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r1(pres,temp,p_prop);
if(rc==1&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=pres_th_r2(&pres,temp,spe_enth);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_enth=spe_enth;
return 0;
}
}
pres_sat=calc_sat_pres(temp);
steam_prop_calc_r1(pres_sat,temp,&prop_w);
steam_prop_calc_r2(pres_sat,temp,&prop_s);
printf("\n\t%lf,%lf\n",prop_w.spe_enth,prop_s.spe_enth);
if(spe_enth>prop_w.spe_enth&&spe_enth<prop_s.spe_enth)
{
printf("\n\nEEEEEEEEEEE\n");
vapor_frac=(spe_enth-prop_w.spe_enth)/(prop_s.spe_enth-prop_w.spe_enth);
p_prop->pressure=pres_sat;
p_prop->temp=temp;
p_prop->spe_vol=vapor_frac*prop_s.spe_vol+(1-vapor_frac)*prop_w.spe_vol;
p_prop->dens=1/p_prop->spe_vol;
p_prop->spe_energy=vapor_frac*prop_s.spe_energy+(1-vapor_frac)*prop_w.spe_energy;
p_prop->spe_entr=vapor_frac*prop_s.spe_entr+(1-vapor_frac)*prop_w.spe_entr;
p_prop->spe_enth=spe_enth;
p_prop->spe_h_v=vapor_frac*prop_s.spe_h_v+(1-vapor_frac)*prop_w.spe_h_v;
p_prop->spe_h_p=vapor_frac*prop_s.spe_h_p+(1-vapor_frac)*prop_w.spe_h_p;
p_prop->speed_sound=vapor_frac*prop_s.speed_sound+(1-vapor_frac)*prop_w.speed_sound;
p_prop->drdp=vapor_frac*prop_s.drdp+(1-vapor_frac)*prop_w.drdp;
p_prop->vapor_fraction=vapor_frac;
//solve vapor fraction and properties;
return 0;
}
return -1;
}
}
int steam_prop_calc_ts(double temp, double spe_entr, steam_prop* p_prop)
{
int rc,flag;
double pres,pres_sat,vapor_frac;
steam_prop prop_w,prop_s;
if(temp>INTER_TEMP1)
{
flag=pres_ts_r2(&pres,temp,spe_entr);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->spe_entr=spe_entr;
return 0;
}
}
flag=pres_ts_r3(&pres,temp,spe_entr);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r3(pres,temp,p_prop);
if(rc==3&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->temp=temp;
p_prop->spe_entr=spe_entr;
return 0;
}
}
flag=pres_ts_r5(&pres,temp,spe_entr);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r5(pres,temp,p_prop);
if(rc==5&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->temp=temp;
p_prop->spe_entr=spe_entr;
return 0;
}
}
return -1;
}
else
{
flag=pres_ts_r1(&pres,temp,spe_entr);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r1(pres,temp,p_prop);
if(rc==1&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->spe_entr=spe_entr;
return 0;
}
}
flag=pres_ts_r2(&pres,temp,spe_entr);
if(flag==0)
{
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
if(rc==2&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4)
{
p_prop->spe_entr=spe_entr;
return 0;
}
}
pres_sat=calc_sat_pres(temp);
steam_prop_calc_r1(pres_sat,temp,&prop_w);
steam_prop_calc_r2(pres_sat,temp,&prop_s);
if(spe_entr>prop_w.spe_entr&&spe_entr<prop_s.spe_entr)
{
vapor_frac=(spe_entr-prop_w.spe_entr)/(prop_s.spe_entr-prop_w.spe_entr);
p_prop->pressure=pres_sat;
p_prop->temp=temp;
p_prop->spe_vol=vapor_frac*prop_s.spe_vol+(1-vapor_frac)*prop_w.spe_vol;
p_prop->dens=1/p_prop->spe_vol;
p_prop->spe_energy=vapor_frac*prop_s.spe_energy+(1-vapor_frac)*prop_w.spe_energy;
p_prop->spe_entr=spe_entr;
p_prop->spe_enth=vapor_frac*prop_s.spe_enth+(1-vapor_frac)*prop_w.spe_enth;
p_prop->spe_h_v=vapor_frac*prop_s.spe_h_v+(1-vapor_frac)*prop_w.spe_h_v;
p_prop->spe_h_p=vapor_frac*prop_s.spe_h_p+(1-vapor_frac)*prop_w.spe_h_p;
p_prop->speed_sound=vapor_frac*prop_s.speed_sound+(1-vapor_frac)*prop_w.speed_sound;
p_prop->drdp=vapor_frac*prop_s.drdp+(1-vapor_frac)*prop_w.drdp;
p_prop->vapor_fraction=vapor_frac;
}
return -1;
}
}
int steam_prop_calc_hs(double spe_enth, double spe_entr, steam_prop* p_prop)
{
int rc,flag;
double pres,temp,temp_sat,p_sat,vapor_frac;
steam_prop prop_w,prop_s;
flag=pt_hs_r1(&pres,&temp,spe_enth,spe_entr);
if(flag==0)
{
// printf("\n....................\n");
rc=region(pres,temp);
steam_prop_calc_r1(pres,temp,p_prop);
if(rc==1&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_entr=spe_entr;
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=pt_hs_r2(&pres,&temp,spe_enth,spe_entr);
if(flag==0)
{
// printf("\n....................%lf,%lf\n",pres,temp);
rc=region(pres,temp);
steam_prop_calc_r2(pres,temp,p_prop);
// printf("\n\n%d,%lf,%lf,%lf,%lf,%lf\n",rc,pres,temp,p_prop->spe_enth,p_prop->spe_entr,p_prop->vapor_fraction);
if(rc==2&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_entr=spe_entr;
p_prop->spe_enth=spe_enth;
// printf("\nGREAT!\n");
return 0;
}
}
flag=pt_hs_r3(&pres,&temp,spe_enth,spe_entr);
if(flag==0)
{
// printf("\n....................%lf,%lf\n",pres,temp);
rc=region(pres,temp);
// printf("@@@@@@@@@@@@@@@%d\n",rc);
steam_prop_calc_r3(pres,temp,p_prop);
// printf("\n\n%d,%lf,%lf,%lf,%lf,%lf\n",rc,pres,temp,p_prop->spe_enth,p_prop->spe_entr,p_prop->vapor_fraction);
if(rc==3&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_entr=spe_entr;
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=pt_hs_r5(&pres,&temp,spe_enth,spe_entr);
if(flag==0)
{
// printf("\n....................%lf,%lf\n",pres,temp);
rc=region(pres,temp);
// printf("@@@@@@@@@@@@@@@%d\n",rc);
steam_prop_calc_r5(pres,temp,p_prop);
// printf("\n\n%d,%lf,%lf,%lf,%lf,%lf\n",rc,pres,temp,p_prop->spe_enth,p_prop->spe_entr,p_prop->vapor_fraction);
if(rc==5&&fabs((p_prop->spe_entr-spe_entr)/spe_entr)<1e-4&&fabs((p_prop->spe_enth-spe_enth)/spe_enth)<1e-4)
{
p_prop->spe_entr=spe_entr;
p_prop->spe_enth=spe_enth;
return 0;
}
}
flag=hs_find_tsat(&temp_sat,spe_enth,spe_entr);
// printf("\n%d,%lf\n",flag,temp_sat);
if(flag==-1)
{
return -1;
}
p_sat=calc_sat_pres(temp_sat);
steam_prop_calc_r1(p_sat,temp_sat,&prop_w);