void CPrecipitator::EvalLosses(MStream & Prod)
{
double T = Prod.T;
double TA = AmbientTemp();
/// Heat Loss to internal cooling, eg Barriquands
if (!m_bCoolerOn && iCoolMethod==COOL_Hx) {
m_dLiquorTout = Prod.T;
m_dLMTD = 0.0;
m_dCoolWaterTout = CoolIn.T;
}
m_dIntCoolRate=0.0;
if (m_bCoolerOn && iCoolType==COOL_INTERNAL && bCoolIn && iCoolMethod == COOL_Hx ) {
MStreamI TubeIn;
MStreamI TubeOut;
MStreamI CoolOut;
if (m_bByVolFlow)
m_dCoolFlow = m_dIntCoolVolFlow*Prod.Density();
else
m_dIntCoolVolFlow = m_dCoolFlow/Prod.Density();
TubeIn.SetM(Prod, MP_All, m_dCoolFlow);
TubeOut.SetF(TubeIn, MP_All, 1.0);
CoolOut.SetF(CoolIn, MP_All, 1.0);
if (TubeIn.MassFlow()>0 && CoolIn.MassFlow()>0) {
m_dUA=m_dCoolArea*m_dCoolHTC;
CCoolerFn Fn(m_dUA, TubeIn, CoolIn, TubeOut, CoolOut);
double TubeOutT;
double MxTbOutT=TubeIn.T;// No Transfer
double MnTbOutT=CoolIn.T+0.001;
double qShell=-CoolIn.totHz()+CoolOut.totHz(MP_All, TubeIn.T);
double qTube= -TubeIn.totHz(MP_All, CoolIn.T)+TubeIn.totHz();
if (qShell<qTube) // Limited By Shell - Tube TOut Limited
MnTbOutT=MxTbOutT - (qShell)/GTZ(qTube)*(MxTbOutT-MnTbOutT);
switch (Fn.FindRoot(0, MnTbOutT, MxTbOutT)) {
case RF_OK: TubeOutT = Fn.Result(); break;
case RF_LoLimit: TubeOutT = MnTbOutT; break;
case RF_HiLimit: TubeOutT = MxTbOutT; break;
default:
Log.Message(MMsg_Error, "TubeOutT not found - RootFinder:%s", Fn.ResultString(Fn.Error()));
TubeOutT=Fn.Result();
break;
}
TubeOut.T = TubeOutT;
m_dIntCoolRate = TubeIn.totHz() - TubeOut.totHz();
m_dCoolWaterTout = CoolOut.T;
m_dCoolWaterTin = CoolIn.T;
m_dCoolWaterFlow = CoolIn.Mass();
m_dCoolWaterFlowVol = CoolIn.Volume();
m_dLiquorTout = TubeOut.T;
m_dLMTD=fabs(LMTD(TubeIn.T, TubeOut.T, CoolIn.T, CoolOut.T));
}
}
if (iCoolType==COOL_INTERNAL && iCoolMethod == COOL_dQ ) {
m_dIntCoolRate = m_dCooldQ;
}
switch (iCoolType) {
case COOL_NONE:
m_dCoolRate = 0;
break;
case COOL_EXTERNAL:
m_dCoolRate = m_dExtCoolRate; // kW
break;
case COOL_INTERNAL:
/// Heat Loss to internal cooling, eg draft tube coolers
m_dCoolRate = m_dIntCoolRate;
break;
}
/// Evaporation Rate
switch (iEvapMethod) {
case EVAP_dT:
m_dEvapRate = m_dEvapRateK*(T-TA); // kg/s
x[3] = m_dEvapRate;
break;
case EVAP_FIXED:
x[3] = m_dEvapRate;
break;
case EVAP_NONE:
x[3] = 0;
m_dEvapRate = 0.0;
}
/// Evaporative Heat Loss ... need to fix this up using stream enthalpies
m_dEvapThermalLoss = 2300*m_dEvapRate; // kW...
/// Heat Loss to ambient cooling
m_dEnvironmentLoss = 0.0;
switch (iThermalLossMethod) {
case THL_Ambient:
m_dEnvironmentLoss = (T-TA)*dThermalLossAmbient; //kW
break;
case THL_FixedHeatFlow:
m_dEnvironmentLoss = dThermalLossRqd;
break;
}
m_dTotThermalLoss = m_dEnvironmentLoss + m_dEvapThermalLoss + m_dCoolRate;
}
void BatchPrecip::EvalProducts()
{
#if ForceOptimizeOff
static Cnt = 0;
if (stricmp(getTag(), "SpeciauxUE")==0)
{
Cnt++;//place breakpoint here to stop for specified model
}
#endif
if (!IsSolveDirect)//(!IsProbal)
return;
bool Err = true;
try
{
MStreamI Slurry;
MStreamI Liquor;
FlwIOs.AddMixtureIn_Id(Slurry, idSlurry); //sum all input slurry streams
m_bHasLiquor = (FlwIOs.First[idLiquor]>=0); //test if liquor stream connected
if (m_bHasLiquor)
{
FlwIOs.AddMixtureIn_Id(Liquor, idLiquor); //sum all input liquor streams
//double LiquorSolids = Liquor.Mass();
}
MStream & Prod = FlwIOs[FlwIOs.First[idDrawOff]].Stream; //get a reference to the single output stream
Prod = Slurry; //set output stream = input stream (including PSD data, etc)
m_dThermalLoss = 0.0;
m_dYield = 0.0;
m_dTempIn = Slurry.T;
MIBayer & SlurryB = *Slurry.FindIF<MIBayer>(); //get access to bayer properties interface for stream
if (!IsNothing(SlurryB))
{
m_dACIn = SlurryB.AtoC();
m_dSolidConcIn = SlurryB.SolidsConc(C2K(25.0));
}
else
{
m_dACIn = 0.0;
m_dSolidConcIn = 0.0;
}
if (m_bOn && Slurry.Mass()>UsableMass)
{
MIBayer & ProdB = *Prod.FindIF<MIBayer>();
Log.SetCondition(IsNothing(ProdB), 1, MMsg_Warning, "Bad Slurry Stream - Not Bayer Model"); //expect stream to have bayer properties
if (!IsNothing(SlurryB) && !IsNothing(ProdB))
{
// --- --- Thermal Losses. ------------
// !! this should be done COMBINED with FLAHSING/evaporation as the Caustic concentration should increase
Slurry.SetTP(Slurry.T -m_dFillingTempDrop, Slurry.P);
Liquor.SetTP(Liquor.T -m_dFillingTempDrop, Liquor.P);
double SlurryH0 = Slurry.totHf(MP_All, Slurry.T, Slurry.P);
double LiquorH0 = (m_bHasLiquor ? Liquor.totHf(MP_All, Liquor.T, Liquor.P) : 0.0);
//Prod.SetTemp(Prod.Temp()-m_dTempDrop);
RunSteady(Slurry, Liquor, Prod);
m_dThermalLoss = (SlurryH0+LiquorH0)-Prod.totHf(MP_All, Prod.T, Prod.P);
m_dACOut = ProdB.AtoC();
m_dSolidConcOut = ProdB.SolidsConc(C2K(25.0));
//m_dResTime = TankVol/GTZ(Prod.Volume(som_SL));
double Cout = ProdB.CausticConc(Prod.T);
m_dYield = Cout*(m_dACIn-m_dACOut);
}
if (sm_bCompletePopulation)
m_QProd = Prod;//copy the content of the stream in the equipement only if STILL in Pop mode
}
else
{
if (m_bHasLiquor)
{
Prod.AddF(Liquor, MP_All, 1.0);
}
MIBayer & ProdB = *Prod.FindIF<MIBayer>();
if (!IsNothing(ProdB))
{
m_dACOut = ProdB.AtoC();
m_dSolidConcOut = ProdB.SolidsConc(C2K(25.0));
}
else
{
m_dACOut = 0.0;
m_dSolidConcOut = 0.0;
}
}
m_dTempOut = Prod.T;
Err = false;
}
catch (MMdlException &e)
{
Log.Message(MMsg_Error, e.Description);
}
catch (MFPPException &e)
{
e.ClearFPP();
Log.Message(MMsg_Error, e.Description);
}
catch (MSysException &e)
{
Log.Message(MMsg_Error, e.Description);
}
catch (...)
{
Log.Message(MMsg_Error, "Some Unknown Exception occured");
}
if (Err)
{//Something is wrong!!! Bug needs fixing!!!
//So lets set product=feed....
MStreamI Feed;
MStream & Prod = FlwIOs[FlwIOs.First[idDrawOff]].Stream; //get a reference to the single output stream
FlwIOs.AddMixtureIn_Id(Feed, idSlurry); //sum all input slurry streams
Prod = Feed;
if (FlwIOs.First[idLiquor]>=0)
{
MStreamI Liquor;
FlwIOs.AddMixtureIn_Id(Liquor, idLiquor); //sum all input liquor streams
Prod.AddF(Liquor, MP_All, 1.0);
}
CString ProblemModel;
ProblemModel = getTag();
//SetStopRequired("Phone Denis!");
}
Log.SetCondition(Err, 5, MMsg_Error, "Error needs fixing!!!");
}
void FlotationCell::EvalProducts()
{
try
{
dPrimaryRecovery = dReqPrimaryRecovery;
dPrimaryGrade = dReqPrimaryGrade;
for (unsigned int i = 0; i < vSecondaryRecoveries.size(); i++)
vSecondaryRecoveries.at(i) = vReqSecondaryRecoveries.at(i);
//sum all input streams into a working copy
MStreamI QI;
FlwIOs.AddMixtureIn_Id(QI, idFeed);
MStreamI QAir;
FlwIOs.AddMixtureIn_Id(QAir, idAir);
bool bAirOn = FlwIOs.Count[idAir] > 0;
//get handles to output streams...
MStream & QOT = FlwIOs[FlwIOs.First[idTail]].Stream;
MStream & QOC = FlwIOs[FlwIOs.First[idConc]].Stream;
MStream & QOV = FlwIOs[FlwIOs.First[idVent]].Stream;
QOT = QI;
QOT.ZeroMass();
QOC = QI;
QOC.ZeroMass();
if (!m_bOn)
{
QOT = QI;
QOV = QAir;
dPrimaryRecovery = dPrimaryGrade = 0;
for (vector<double>::iterator it = vSecondaryRecoveries.begin(); it != vSecondaryRecoveries.end(); it++)
*it = 0.0;
return;
}
if (QI.Mass(MP_Sol) > QI.Mass(MP_Liq))
Log.SetCondition(true, LC_BadInput, MMsg_Warning, "Input stream contains more solid than liquid.");
if (bAirOn && (QAir.Mass(MP_Sol) > UsableMass || QAir.Mass(MP_Liq) > UsableMass))
Log.SetCondition(true, LC_BadAir, MMsg_Warning, "Air stream contains liquids or solids");
if (bAirOn && QAir.Volume(MP_Gas) < 2 * QI.Volume(MP_Sol))
Log.SetCondition(true, LC_LittleAir, MMsg_Warning, "Air stream contains very little gas");
QI.AddF(QAir, MP_All, 1);
//do the work...
const int NumSpecies = gs_MVDefn.Count();
//Primaries:
double dPrimaryMassConc = 0.0;
double dPrimaryElementConc = 0.0;
for (unsigned int i = 0; i < vPrimaryIndices.size(); i++)
{
double temp = QI.M[vPrimaryIndices.at(i)];
dPrimaryMassConc += temp * dReqPrimaryRecovery;
if (eSpecType == FTST_ByElement)
dPrimaryElementConc += temp * dPrimaryRecovery * ElementMassFrac(vPrimaryIndices.at(i), nPrimary1);
else
dPrimaryElementConc += temp * dPrimaryRecovery;
QOT.M[vPrimaryIndices.at(i)] = temp * (1 - dReqPrimaryRecovery);
QOC.M[vPrimaryIndices.at(i)] = temp * dReqPrimaryRecovery;
}
if (dPrimaryElementConc == 0)
{
dPrimaryRecovery = dNAN;
Log.SetCondition(true, LC_NoPrimaries, MMsg_Warning, "No primary compounds found in feed.");
}
//Secondaries:
double dSecondaryMassConc = 0.0;
for (unsigned int i = 0; i < vSecondaryIndices.size(); i++)
{
double temp = QI.M[vSecondaryIndices.at(i)];
dSecondaryMassConc += temp * vReqSecondaryRecoveries.at(i);
QOT.M[vSecondaryIndices.at(i)] = temp * (1 - vReqSecondaryRecoveries.at(i));
QOC.M[vSecondaryIndices.at(i)] = temp * vReqSecondaryRecoveries.at(i);
if (eSpecType == FTST_ByElement)
dPrimaryElementConc += temp * vReqSecondaryRecoveries.at(i) * ElementMassFrac(vSecondaryIndices.at(i), nPrimary1);
}
//Those not included in either primaries or secondaries.
double dPrimaryElementInGangue = 0;
double dOtherMassIn = 0.0;
for (unsigned int i = 0; i < vOtherIndices.size(); i++)
{
dOtherMassIn += QI.M[vOtherIndices.at(i)];
if (eSpecType == FTST_ByElement)
dPrimaryElementInGangue += QI.M[vOtherIndices.at(i)] * ElementMassFrac(vOtherIndices.at(i), nPrimary1);
}
double dPrimaryGangueFrac = dPrimaryElementInGangue / NZ(dOtherMassIn);
double dReqOtherMassOut = (dPrimaryElementConc - dReqPrimaryGrade * (dPrimaryMassConc + dSecondaryMassConc)) / NZ(dReqPrimaryGrade - dPrimaryGangueFrac);
if (dReqOtherMassOut < 0) //If this is the case, we will put in no more impurities.
{
if (dPrimaryElementConc / QOC.Mass(MP_Sol) < dReqPrimaryGrade)
{
Log.SetCondition(true, LC_NoGrade, MMsg_Warning, "Secondary products prevent required primary grade");
dReqOtherMassOut = 0;
}
else
{
Log.SetCondition(true, LC_NoGrade, MMsg_Warning, "Grade of gangue to concentrate higher than required grade");
if (dPrimaryElementConc / QOC.Mass(MP_Sol) > dPrimaryGangueFrac) //We will get as close as possible...
dReqOtherMassOut = dOtherMassIn;
}
}
if (dReqOtherMassOut > dOtherMassIn)
{
Log.SetCondition(true, LC_NoGrade, MMsg_Warning, "Not enough unspecified input mass to achieve required primary grade");
dReqOtherMassOut = dOtherMassIn;
}
for (unsigned int i = 0; i < vOtherIndices.size(); i++)
{
QOC.M[vOtherIndices.at(i)] = QI.M[vOtherIndices.at(i)] * dReqOtherMassOut / NZ(dOtherMassIn);
QOT.M[vOtherIndices.at(i)] = QI.M[vOtherIndices.at(i)] * (1 - dReqOtherMassOut / NZ(dOtherMassIn));
}
dPrimaryElementConc += dReqOtherMassOut * dPrimaryGangueFrac;
//Finally: We deal with non-solid species:
/*for (int i = 0; i < gs_MVDefn.Count(); i++)
{
if (gs_MVDefn[i].IsSolid())
continue;
QOC.M[i] = QI.M[i] * dReqWaterFrac;
QOT.M[i] = QI.M[i] * (1 - dReqWaterFrac);
}*/
QOC.AddM(QI, MP_Liq, QI.Mass(MP_Liq) * dReqWaterFrac);
QOT.AddM(QI, MP_Liq, QI.Mass(MP_Liq) * (1 - dReqWaterFrac));
if (FlwIOs.Count[idVent] > 0)
{
QOV = QI;
QOV.ZeroMass();
QOV.AddM(QI, MP_Gas, QI.Mass(MP_Gas));
}
else
{
QOC.AddM(QI, MP_Gas, QI.Mass(MP_Gas));
if (FlwIOs.Count[idAir] > 0)
Log.SetCondition(true, LC_Vent, MMsg_Warning, "Stream connected to air, but no stream connected to vent.");
}
if (QOC.Mass(MP_Sol) > 0)
dPrimaryGrade = dPrimaryElementConc / NZ(QOC.Mass(MP_Sol));
else
dPrimaryGrade = dNAN;
dSfConcentrate = QOC.MassFrac(MP_Sol);
dSfTailings = QOT.MassFrac(MP_Sol);
}
catch (MMdlException &e)
{
Log.Message(MMsg_Error, e.Description);
}
catch (MFPPException &e)
{
e.ClearFPP();
Log.Message(MMsg_Error, e.Description);
}
catch (MSysException &e)
{
Log.Message(MMsg_Error, e.Description);
}
catch (...)
{
Log.Message(MMsg_Error, "Some Unknown Exception occured");
}
}
