| 1 |
#include "ammonia.h" |
| 2 |
|
| 3 |
/** |
| 4 |
Ideal gas data for Ammonia, from Tillner-Roth, Harms-Watzenberg and |
| 5 |
Baehr, 'Eine neue Fundamentalgleichung f端r Ammoniak', DKV-Tagungsbericht, |
| 6 |
20:167-181, 1993. This is the ammmonia property correlation recommended |
| 7 |
by NIST in its program REFPROP 7.0. |
| 8 |
*/ |
| 9 |
#define TSTAR_TO_0.33 |
| 10 |
|
| 11 |
const IdealData ideal_data_ammonia = { |
| 12 |
-15.815020 /* const */ |
| 13 |
, 4.255726 /* linear */ |
| 14 |
, 405.40 /* Tstar */ |
| 15 |
, 488.189 /* cpstar J/kgK */ |
| 16 |
, 3 /* power terms */ |
| 17 |
, (const IdealPowTerm[]){ |
| 18 |
{1.8871646035249E+01, -1./3} |
| 19 |
,{5.9549943513550E-04, 3./2} |
| 20 |
,{-7.4983130863099E-05, 7./4} |
| 21 |
|
| 22 |
#if 0 |
| 23 |
IDEALPOWTERM_FROM_HELM0(11.474340, 1./3., 405.40) |
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,IDEALPOWTERM_FROM_HELM0(-1.296211, -3./2., 405.40) |
| 25 |
,IDEALPOWTERM_FROM_HELM0(0.5706757, -7./4., 405.40) |
| 26 |
#endif |
| 27 |
} |
| 28 |
, 0, (const IdealExpTerm *)0 /* no exponential terms */ |
| 29 |
}; |
| 30 |
|
| 31 |
|
| 32 |
/** |
| 33 |
Residual (non-ideal) property data for Ammonia, from Tillner-Roth, |
| 34 |
Harms-Watzenberg and Baehr, 'Eine neue Fundamentalgleichung f端r Ammoniak', |
| 35 |
DKV-Tagungsbericht, 20:167-181, 1993. This is the ammmonia property correlation |
| 36 |
recommended by NIST in its program REFPROP 7.0. |
| 37 |
*/ |
| 38 |
const HelmholtzData helmholtz_data_ammonia = { |
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/* R */ 488.189 /* J/kg/K */ |
| 40 |
, /* M */ 17.03026 /* kg/kmol */ |
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, /* rho_star */225. /* kg/m続 */ |
| 42 |
, /* T_star */ 405.40 /* K */ |
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, &ideal_data_ammonia |
| 44 |
, 21 /* np */ |
| 45 |
, (const HelmholtzPowTerm[]){ |
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/* a_i, t_i, d_i, l_i */ |
| 47 |
{0.4554431E-1, -0.5 , 2, 0}/* 1 */ |
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,{0.7238548E+0, 0.5 , 1, 0 } |
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,{0.1229470E-1, 1 , 4, 0 } |
| 50 |
,{-0.1858814E+1, 1.5 , 1, 0 } |
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,{0.2141882E-10, 3 , 15, 0 }/* 5 */ |
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,{-0.1430020E-1, 0 , 3, 1 } |
| 53 |
,{0.3441324E+0, 3 , 3, 1 } |
| 54 |
,{-0.2873571E+0, 4 , 1, 1 } |
| 55 |
,{0.2352589E-4, 4 , 8, 1 } |
| 56 |
,{-0.3497111E-1, 5 , 2, 1}/* 10 */ |
| 57 |
,{0.2397852E-1, 3 , 1, 2} |
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,{0.1831117E-2, 5 , 8, 2} |
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,{-0.4085375E-1, 6 , 1, 2} |
| 60 |
,{0.2379275E+0, 8 , 2, 2} |
| 61 |
,{-0.3548972E-1, 8 , 3, 2}/* 15 */ |
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,{-0.1823729E+0, 10, 2, 2} |
| 63 |
,{0.2281556E-1, 10 , 4, 2} |
| 64 |
,{-0.6663444E-2, 5 , 3, 3} |
| 65 |
,{-0.8847486E-2, 7.5, 1, 3} |
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,{0.2272635E-2 , 15 , 2, 3}/* 20 */ |
| 67 |
,{-0.5588655E-3, 30, 4, 3} |
| 68 |
} |
| 69 |
, 0, 0 /* no exponential terms */ |
| 70 |
}; |
| 71 |
|
| 72 |
|
| 73 |
/* |
| 74 |
Test suite. These tests attempt to validate the current code using |
| 75 |
a few sample figures output by REFPROP 7.0. |
| 76 |
|
| 77 |
To run the test, compile and run as follows: |
| 78 |
|
| 79 |
gcc ideal.c helmholtz.c ammonia.c -DTEST -o ammonia -lm && ./ammonia |
| 80 |
|
| 81 |
These tests all currently pass with a maximum error of 0.09%. |
| 82 |
*/ |
| 83 |
#ifdef TEST |
| 84 |
|
| 85 |
#include <assert.h> |
| 86 |
#include <stdlib.h> |
| 87 |
#include <stdio.h> |
| 88 |
#include <math.h> |
| 89 |
|
| 90 |
typedef struct{double T,p,rho,u,h,s,cv,cp,cp0,a;} TestData; |
| 91 |
const TestData td[]; const unsigned ntd; |
| 92 |
|
| 93 |
int main(void){ |
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unsigned n, i; |
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double rho, T, cp0, p, u, h, s; |
| 96 |
const HelmholtzData *d; |
| 97 |
|
| 98 |
d = &helmholtz_data_ammonia; |
| 99 |
double maxerr = 0; |
| 100 |
|
| 101 |
n = ntd; |
| 102 |
fprintf(stderr,"Running through %d test points...\n",n); |
| 103 |
|
| 104 |
/* enthalpy offset is required to attain agreement with values from REFPROP */ |
| 105 |
double Z = 0; |
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|
| 107 |
/* entropy offset required to attain agreement with REFPROP */ |
| 108 |
double Y = -5.7993194647e+06; |
| 109 |
|
| 110 |
/* a simple macro to actually do the testing */ |
| 111 |
#define ASSERT_TOL(FN,PARAM1,PARAM2,PARAM3,VAL,TOL) {\ |
| 112 |
double cval; cval = FN(PARAM1,PARAM2,PARAM3);\ |
| 113 |
double err; err = cval - (double)(VAL);\ |
| 114 |
double relerrpc = (cval-(VAL))/(VAL)*100;\ |
| 115 |
if(fabs(relerrpc)>maxerr)maxerr=fabs(relerrpc);\ |
| 116 |
if(fabs(err)>fabs(TOL)){\ |
| 117 |
fprintf(stderr,"ERROR in line %d: value of '%s(%f,%f,%s)' = %f,"\ |
| 118 |
" should be %f, error is %.10e (%.2f%%)!\n"\ |
| 119 |
, __LINE__, #FN,PARAM1,PARAM2,#PARAM3, cval, VAL,cval-(VAL)\ |
| 120 |
,relerrpc\ |
| 121 |
);\ |
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exit(1);\ |
| 123 |
}else{\ |
| 124 |
fprintf(stderr," OK, %s(%f,%f,%s) = %8.2e with %.2f%% err.\n"\ |
| 125 |
,#FN,PARAM1,PARAM2,#PARAM3,VAL,relerrpc\ |
| 126 |
);\ |
| 127 |
}\ |
| 128 |
} |
| 129 |
|
| 130 |
#define CP0_TEMP(T,RHO,DATA) helmholtz_cp0(T,DATA) |
| 131 |
|
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fprintf(stderr,"CP0 TESTS\n"); |
| 133 |
for(i=0; i<n;++i){ |
| 134 |
cp0 = td[i].cp0*1e3; |
| 135 |
ASSERT_TOL(CP0_TEMP, td[i].T+273.15, td[i].rho, d, cp0, cp0*1e-4); |
| 136 |
} |
| 137 |
|
| 138 |
#undef CP0_TEMP |
| 139 |
|
| 140 |
fprintf(stderr,"PRESSURE TESTS\n"); |
| 141 |
for(i=0; i<n;++i){ |
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p = td[i].p*1e6; |
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ASSERT_TOL(helmholtz_p, td[i].T+273.15, td[i].rho, d, p, p*2e-4); |
| 144 |
} |
| 145 |
|
| 146 |
double CORRECTION_u = 0; |
| 147 |
fprintf(stderr,"INTERNAL ENERGY TESTS\n"); |
| 148 |
for(i=0; i<n;++i){ |
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fprintf(stderr,"u = %f kJ/kg\n",td[i].u); |
| 150 |
u = td[i].u*1e3 + CORRECTION_u; |
| 151 |
ASSERT_TOL(helmholtz_u, td[i].T+273.15, td[i].rho, d, u, u*1e-3); |
| 152 |
} |
| 153 |
|
| 154 |
fprintf(stderr,"ENTROPY TESTS\n"); |
| 155 |
for(i=0; i<n;++i){ |
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s = td[i].s*1e3 + Y; |
| 157 |
ASSERT_TOL(helmholtz_s, td[i].T+273.15, td[i].rho, d, s, 1e-3*s); |
| 158 |
} |
| 159 |
|
| 160 |
fprintf(stderr,"ENTHALPY TESTS\n"); |
| 161 |
for(i=0; i<n;++i){ |
| 162 |
ASSERT_TOL(helmholtz_h, td[i].T+273.15, td[i].rho, d, td[i].h*1e3 + Z, 1E3); |
| 163 |
} |
| 164 |
|
| 165 |
fprintf(stderr,"Tests completed OK (maximum error = %0.2f%%)\n",maxerr); |
| 166 |
exit(0); |
| 167 |
} |
| 168 |
|
| 169 |
/* |
| 170 |
Some test data generated by REFPROP 7.0 for p=0.1, 1, 10, 20, 100 MPa. |
| 171 |
*/ |
| 172 |
const TestData td[] = { |
| 173 |
/*{T/C, , p/MPa , rho/(kg/m3) , u/(kJ/kg) , h/(kJ/kg) , s/(kJ/kgK) , cv/(kJ/kgK) , cp(kJ/kgK) , cp0/(kJ/kgK) a/(kJ/kg)}*/ |
| 174 |
{-7.0E+1, 1.E-1, 7.247478262E+2, 3.229029237E+1, 3.24282714E+1, 1.620191045E-1, 2.920877051E+0, 4.244712246E+0, 2.008935269E+0, -6.238887074E-1} |
| 175 |
, {-3.358834071E+1, 1.E-1, 6.822948922E+2, 1.906067908E+2, 1.90753355E+2, 8.784304761E-1, 2.855271402E+0, 4.446549354E+0, 2.027472493E+0, -1.983147159E+1} |
| 176 |
, {-3.358834071E+1, 1.E-1, 8.786678914E-1, 1.447205955E+3, 1.561014597E+3, 6.5982992E+0, 1.703163454E+0, 2.294671598E+0, 2.027472493E+0, -1.3349355E+2} |
| 177 |
, {-2.0E+1, 1.E-1, 8.263382177E-1, 1.470672235E+3, 1.591688059E+3, 6.722856799E+0, 1.664164155E+0, 2.226407096E+0, 2.039317099E+0, -2.312189638E+2} |
| 178 |
, {3.0E+1, 1.E-1, 6.82304266E-1, 1.554101898E+3, 1.700664077E+3, 7.115863679E+0, 1.647471243E+0, 2.164362521E+0, 2.099810352E+0, -6.030721764E+2} |
| 179 |
, {8.0E+1, 1.E-1, 5.831571413E-1, 1.638302054E+3, 1.80978242E+3, 7.448946867E+0, 1.706378596E+0, 2.209153449E+0, 2.179739223E+0, -9.922935323E+2} |
| 180 |
, {1.30E+2, 1.E-1, 5.097610128E-1, 1.725968834E+3, 1.922139191E+3, 7.746386561E+0, 1.791930531E+0, 2.28877615E+0, 2.272754856E+0, -1.396986908E+3} |
| 181 |
, {1.80E+2, 1.E-1, 4.5299046E-1, 1.818169337E+3, 2.038924538E+3, 8.019355389E+0, 1.89071839E+0, 2.384574213E+0, 2.374740669E+0, -1.815801558E+3} |
| 182 |
, {2.30E+2, 1.E-1, 4.076912096E-1, 1.915461928E+3, 2.160745608E+3, 8.274268056E+0, 1.997259617E+0, 2.489413305E+0, 2.482853093E+0, -2.247736044E+3} |
| 183 |
, {2.80E+2, 1.E-1, 3.706742442E-1, 2.018176941E+3, 2.287955598E+3, 8.515225293E+0, 2.108580854E+0, 2.599678959E+0, 2.595030777E+0, -2.69201993E+3} |
| 184 |
, {3.30E+2, 1.E-1, 3.398445366E-1, 2.126514644E+3, 2.420766836E+3, 8.745015419E+0, 2.222765313E+0, 2.713166279E+0, 2.709721662E+0, -3.148041406E+3} |
| 185 |
, {3.80E+2, 1.E-1, 3.137636628E-1, 2.240589284E+3, 2.559300504E+3, 8.965613422E+0, 2.338444972E+0, 2.828362941E+0, 2.825720964E+0, -3.615301123E+3} |
| 186 |
, {-7.0E+1, 1.E+0, 7.250581532E+2, 3.191292802E+1, 3.329212774E+1, 1.601599414E-1, 2.923511889E+0, 4.241967721E+0, 2.008935269E+0, -6.235640687E-1} |
| 187 |
, {-2.0E+1, 1.E+0, 6.655956817E+2, 2.50822066E+2, 2.523244796E+2, 1.122985212E+0, 2.83379452E+0, 4.509597946E+0, 2.039317099E+0, -3.346164026E+1} |
| 188 |
, {2.489509207E+1, 1.E+0, 6.029210949E+2, 4.586595787E+2, 4.603181705E+2, 1.878768996E+0, 2.764789412E+0, 4.783527097E+0, 2.092608239E+0, -1.012982998E+2} |
| 189 |
, {2.489509207E+1, 1.E+0, 7.782283811E+0, 1.498025198E+3, 1.626522182E+3, 5.791613203E+0, 2.129812148E+0, 3.133024821E+0, 2.092608239E+0, -2.281366922E+2} |
| 190 |
, {3.0E+1, 1.E+0, 7.573646544E+0, 1.510151287E+3, 1.64218808E+3, 5.843733285E+0, 2.071473976E+0, 3.009079611E+0, 2.099810352E+0, -2.613764583E+2} |
| 191 |
, {8.0E+1, 1.E+0, 6.146734558E+0, 1.614152301E+3, 1.776840309E+3, 6.255779773E+0, 1.85362895E+0, 2.516587992E+0, 2.179739223E+0, -5.950763259E+2} |
| 192 |
, {1.30E+2, 1.E+0, 5.259177246E+0, 1.709991264E+3, 1.900135075E+3, 6.582405217E+0, 1.860827189E+0, 2.443994372E+0, 2.272754856E+0, -9.437053987E+2} |
| 193 |
, {1.80E+2, 1.E+0, 4.621587996E+0, 1.806536743E+3, 2.022912586E+3, 6.869456377E+0, 1.928949229E+0, 2.476922143E+0, 2.374740669E+0, -1.306357415E+3} |
| 194 |
, {2.30E+2, 1.E+0, 4.132311779E+0, 1.906483833E+3, 2.148479127E+3, 7.132238182E+0, 2.020971903E+0, 2.550089921E+0, 2.482853093E+0, -1.682101808E+3} |
| 195 |
, {2.80E+2, 1.E+0, 3.741648311E+0, 2.010971322E+3, 2.278233212E+3, 7.378029463E+0, 2.124500592E+0, 2.642300555E+0, 2.595030777E+0, -2.070185676E+3} |
| 196 |
, {3.30E+2, 1.E+0, 3.421067224E+0, 2.120568346E+3, 2.412874791E+3, 7.610994396E+0, 2.234107913E+0, 2.744579111E+0, 2.709721662E+0, -2.470002925E+3} |
| 197 |
, {3.80E+2, 1.E+0, 3.152561727E+0, 2.235579603E+3, 2.552781957E+3, 7.833784037E+0, 2.346907298E+0, 2.85236643E+0, 2.825720964E+0, -2.881056441E+3} |
| 198 |
, {-7.0E+1, 1.E+1, 7.281133559E+2, 2.82467347E+1, 4.198085991E+1, 1.41957312E-1, 2.948363488E+0, 4.215226705E+0, 2.008935269E+0, -5.918932355E-1} |
| 199 |
, {-2.0E+1, 1.E+1, 6.705474103E+2, 2.444309266E+2, 2.593441153E+2, 1.097500056E+0, 2.847709968E+0, 4.466308713E+0, 2.039317099E+0, -3.34012126E+1} |
| 200 |
, {3.0E+1, 1.0E+1, 6.036532714E+2, 4.718115329E+2, 4.883773339E+2, 1.922486043E+0, 2.76482419E+0, 4.716399214E+0, 2.099810352E+0, -1.109901112E+2} |
| 201 |
, {8.0E+1, 1.E+1, 5.191766069E+2, 7.182881257E+2, 7.375493941E+2, 2.682019021E+0, 2.725818451E+0, 5.40010006E+0, 2.179739223E+0, -2.288668917E+2} |
| 202 |
, {1.251668991E+2, 1.0E+1, 3.566957919E+2, 1.036686156E+3, 1.064721249E+3, 3.546261425E+0, 3.120852518E+0, 1.799912569E+1, 2.263318196E+0, -3.758496986E+2} |
| 203 |
, {1.251668991E+2, 1.0E+1, 1.215794756E+2, 1.368344633E+3, 1.450595358E+3, 4.515023005E+0, 3.549403632E+0, 2.75480558E+1, 2.263318196E+0, -4.300653297E+2} |
| 204 |
, {1.30E+2, 1.0E+1, 1.006607688E+2, 1.433765286E+3, 1.533108854E+3, 4.721093813E+0, 3.179462337E+0, 1.218949302E+1, 2.272754856E+0, -4.69543685E+2} |
| 205 |
, {1.80E+2, 1.0E+1, 6.013676382E+1, 1.664224216E+3, 1.830511847E+3, 5.423234397E+0, 2.370777153E+0, 4.100436931E+0, 2.374740669E+0, -7.93314451E+2} |
| 206 |
, {2.30E+2, 1.E+1, 4.825185325E+1, 1.806069112E+3, 2.013315037E+3, 5.806541293E+0, 2.265129959E+0, 3.370696776E+0, 2.482853093E+0, -1.11549214E+3} |
| 207 |
, {2.80E+2, 1.0E+1, 4.136336686E+1, 1.933702328E+3, 2.175462144E+3, 6.11393854E+0, 2.282610344E+0, 3.155805732E+0, 2.595030777E+0, -1.448222776E+3} |
| 208 |
, {3.30E+2, 1.0E+1, 3.661170108E+1, 2.058308433E+3, 2.331445154E+3, 6.383938033E+0, 2.345404767E+0, 3.099738472E+0, 2.709721662E+0, -1.792163792E+3} |
| 209 |
, {3.80E+2, 1.0E+1, 3.303984101E+1, 2.183905783E+3, 2.486570677E+3, 6.631017385E+0, 2.429601299E+0, 3.113246758E+0, 2.825720964E+0, -2.147143222E+3} |
| 210 |
, {-7.0E+1, 2.E+1, 7.314110284E+2, 2.438989319E+1, 5.173429903E+1, 1.225158918E-1, 2.97295095E+0, 4.186833561E+0, 2.008935269E+0, -4.992102225E-1} |
| 211 |
, {-2.0E+1, 2.E+1, 6.757461174E+2, 2.378074747E+2, 2.674043891E+2, 1.070658825E+0, 2.862424736E+0, 4.424294578E+0, 2.039317099E+0, -3.322980699E+1} |
| 212 |
, {3.0E+1, 2.0E+1, 6.122156933E+2, 4.606156644E+2, 4.932838894E+2, 1.884416733E+0, 2.77478908E+0, 4.620255644E+0, 2.099810352E+0, -1.106452683E+2} |
| 213 |
, {8.0E+1, 2.E+1, 5.368145605E+2, 6.956794002E+2, 7.329362138E+2, 2.615362829E+0, 2.713627362E+0, 5.036284223E+0, 2.179739223E+0, -2.279359829E+2} |
| 214 |
, {1.30E+2, 2.0E+1, 4.294999502E+2, 9.663897317E+2, 1.012955511E+3, 3.354873661E+0, 2.741137614E+0, 6.544104233E+0, 2.272754856E+0, -3.861275849E+2} |
| 215 |
, {1.80E+2, 2.0E+1, 2.039788488E+2, 1.395383189E+3, 1.493432571E+3, 4.471185097E+0, 2.869863104E+0, 1.043542616E+1, 2.374740669E+0, -6.307343372E+2} |
| 216 |
, {2.30E+2, 2.0E+1, 1.191595281E+2, 1.667907891E+3, 1.835750113E+3, 5.192497178E+0, 2.520294197E+0, 4.955556508E+0, 2.482853093E+0, -9.446970641E+2} |
| 217 |
, {2.80E+2, 2.0E+1, 9.305602458E+1, 1.837529361E+3, 2.052453651E+3, 5.603863917E+0, 2.442250471E+0, 3.919373117E+0, 2.595030777E+0, -1.262247965E+3} |
| 218 |
, {3.30E+2, 2.E+1, 7.87847032E+1, 1.984385217E+3, 2.238241603E+3, 5.925629929E+0, 2.457876404E+0, 3.567673051E+0, 2.709721662E+0, -1.589658474E+3} |
| 219 |
, {3.80E+2, 2.0E+1, 6.930562563E+1, 2.124157386E+3, 2.412734248E+3, 6.20363454E+0, 2.513826097E+0, 3.43455809E+0, 2.825720964E+0, -1.927746514E+3} |
| 220 |
, {-2.0E+1, 1.E+2, 7.097079501E+2, 1.971623979E+2, 3.380654271E+2, 8.941118487E-1, 2.948865706E+0, 4.209874651E+0, 2.039317099E+0, -2.918201662E+1} |
| 221 |
, {3.0E+1, 1.00E+2, 6.609898909E+2, 3.99293994E+2, 5.505822381E+2, 1.660051479E+0, 2.865882923E+0, 4.272619565E+0, 2.099810352E+0, -1.039506117E+2} |
| 222 |
, {8.0E+1, 1.00E+2, 6.112193023E+2, 6.009802061E+2, 7.645876046E+2, 2.313447447E+0, 2.790639905E+0, 4.287734917E+0, 2.179739223E+0, -2.160137598E+2} |
| 223 |
, {1.30E+2, 1.E+2, 5.605676047E+2, 8.013221537E+2, 9.797127692E+2, 2.88311668E+0, 2.735688771E+0, 4.322269403E+0, 2.272754856E+0, -3.610063358E+2} |
| 224 |
, {1.80E+2, 1.00E+2, 5.091016945E+2, 1.000810051E+3, 1.197234461E+3, 3.391678155E+0, 2.70641506E+0, 4.380908617E+0, 2.374740669E+0, -5.361289048E+2} |
| 225 |
, {2.30E+2, 1.00E+2, 4.577648376E+2, 1.19928899E+3, 1.417741767E+3, 3.853216148E+0, 2.701336718E+0, 4.435601393E+0, 2.482853093E+0, -7.394567146E+2} |
| 226 |
, {2.80E+2, 1.00E+2, 4.085537409E+2, 1.39536859E+3, 1.640134431E+3, 4.274597549E+0, 2.715900681E+0, 4.45131851E+0, 2.595030777E+0, -9.691250446E+2} |
| 227 |
, {3.30E+2, 1.00E+2, 3.638085408E+2, 1.587052868E+3, 1.86192272E+3, 4.658479239E+0, 2.745812238E+0, 4.411199889E+0, 2.709721662E+0, -1.222708885E+3} |
| 228 |
, {3.80E+2, 1.00E+2, 3.251311703E+2, 1.772997776E+3, 2.080565949E+3, 5.006781049E+0, 2.788309263E+0, 4.330393148E+0, 2.825720964E+0, -1.497181267E+3} |
| 229 |
}; |
| 230 |
|
| 231 |
const unsigned ntd = sizeof(td)/sizeof(TestData); |
| 232 |
|
| 233 |
#endif |
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