GasFlowMeter/User/AGA10/therm.h

/*************************************************************************
* File	:	therm.h	
* Description	:	Header file for class 'Therm'
*		See therm.cpp for implementation of this class
* Version	:	ver 1.7	2002.11.17
* Author	:	W.B. Peterson
*Revisions:
*Copyright (c) 2002  American Gas Association
**************************************************************************/

#ifndef _THERM_H
#define _THERM_H

#include "aga10.h"
#include "detail.h"

class Therm

{
private:

// member data

double dT ;	// current temperature, in Kelvins
double dP ;	// current pressure, in Pascals
double dD ;	// molar density, in moles/dm3
double dRho ;	// mass density, in kg/m3

double dPdD ;	// partial deriv of P wrt D

double dPdT ;	// partial deriv of P wrt T
double dSi ;	// ideal gas specific entropy, kJ/kg.K
double dTold ;	// temperature previously used

double dMrxold ;	// mixture molar mass previously used

// private methods

double CpiMolar(AGA10STRUCT *) ;

protected:

public:

Therm(void) ; // default constructor ~Therm() ; // default destructor




void Run(AGA10STRUCT *, Detail *) ;	// runs an object based on this class

double Ho(AGA10STRUCT *) ;	// ideal gas enthalpy
double So(AGA10STRUCT *) ;	// ideal gas entropy
void CprCvrHS(AGA10STRUCT *, Detail *) ;	// specific heat capacities + k_ideal + H + S
double H(AGA10STRUCT *, Detail *) ;	// real gas specific enthalpy

double S(AGA10STRUCT *, Detail *) ;	// real gas specific entropy

void HS_Mode(AGA10STRUCT *, Detail *, double, double, bool) ; // estimates P & T, given H & S
} ;


//Other data used by Therm class

//Roots and Weights for gaussian quadrature
const long double GK_root[5] =

{0.14887433898163121088,

0.43339539412924719080,

0.67940956829902440263,
0.86506336668898451073, 0.97390652851717172008 };

const long double GK_weight[5] =

{ 0.29552422471475286217, 0.26926671930999634918, 0.21908636251598204295, 0.14945134915058059038, 0.066671344308688137179 };

//set the number of points for quadrature const int GK_points = 5 ;
//equation constants for ideal gas heat capacity, enthalpy and entropy 
const double ThermConstants[NUMBEROFCOMPONENTS[11] =

{{-29776.4, 7.95454, 43.9417, 1037.09, 1.56373, 813.205, -24.9027, 1019.98,-10.1601, 1070.14,-20.0615}, {-3495.34, 6.95587, 0.272892, 662.738,-0.291318,-680.562, 1.78980, 1740.06, 0.0, 100.0, 4.49823}, { 20.7307, 6.96237, 2.68645, 500.371,-2.56429,-530.443, 3.91921, 500.198, 2.13290, 2197.22, 5.81381}, {-37524.4, 7.98139, 24.3668, 752.320, 3.53990, 272.846, 8.44724, 1020.13,-13.2732, 869.510,-22.4010},
{-56072.1, 8.14319,	37.0629,	735.402,	9.38159,	247.190,	13.4556, 1454.78,-11.7342, 984.518,-24.0426},
{-13773.1, 7.97183, 6.27078,	2572.63,	2.05010,	1156.72,	0.0,	100.0,	0.0,	100.0,	-3.24989},
{-10085.4, 7.94680,-0.08380,	433.801,	2.85539, 843.792,	6.31595, 1481.43,-2.88457, 1102.23,-0.51551},
{-5565.60, 6.66789, 2.33458,	2584.98,	.749019, 559.656,	0.0,	100.0,	0.0,	100.0,	-7.94821},
{-2753.49, 6.95854, 2.02441,	1541.22,	.096774, 3674.81,	0.0,	100.0,	0.0,	100.0,	6.23387},
{-3497.45, 6.96302, 2.40013, 2522.05, 2.21752, 1154.15, 0.0,	100.0,	0.0,	100.0,	9.19749},
{-72387.0, 17.8143, 58.2062, 1787.39, 40.7621, 808.645, 0.0,	100.0,	0.0,	100.0,	-44.1341},
{-72674.8, 18.6383, 57.4178, 1792.73, 38.6599, 814.151, 0.0,	100.0,	0.0,	100.0,	-46.1938},
{-91505.5, 21.3861, 74.3410, 1701.58, 47.0587, 775.899, 0.0,	100.0,	0.0,	100.0,	-60.2474},
{-83845.2, 22.5012, 69.5789, 1719.58, 46.2164, 802.174, 0.0,	100.0,	0.0,	100.0,	-62.2197},
{-94982.5, 26.6225, 80.3819, 1718.49, 55.6598, 802.069, 0.0,	100.0,	0.0,	100.0,	-77.5366},
{-103353., 30.4029, 90.6941, 1669.32, 63.2028, 786.001, 0.0,	100.0,	0.0,	100.0,	-92.0164},
{-109674., 34.0847, 100.253, 1611.55, 69.7675, 768.847, 0.0,	100.0,	0.0,	100.0,	-106.149},
{-122599., 38.5014, 111.446, 1646.48, 80.5015, 781.588, 0.0,	100.0,	0.0,	100.0,	-122.444},
{-133564., 42.7143, 122.173, 1654.85, 90.2255, 785.564, 0.0,	100.0,	0.0,	100.0,	-138.006},
{	0.0,	4.9680,	0.0,	100.0,	0.0,	100.0,	0.0,	100.0,	0.0,	100.0,	0.0	},
{	0.0,	4.9680,	0.0,	100.0,	0.0,	100.0,	0.0,	100.0,	0.0,	100.0,	0.0	}};

// enumerations for indexing of coefficients

enum CoefficientList{ coefA = 0, coefB, coefC, coefD, coefE, coefF, coefG, coefH, coefI, coefJ, coefK } ;

// conversion constant for thermochemical calories to Joules: 1 cal(IT) = 4.1840 J const double CalTH = 4.1840 ;

#endif












/*************************************************************************
*			
* File	:	entry.cpp	
* Purpose	:	This file contains the startup code for aga10.dll
*		and is only required for Windows DLL creation.
* Project	:	AGA10 DLL	
* Version	:	ver 1.7	2002.11.17
* Author	:	W.B. Peterson
*Revisions:
*Copyright (c) 2002  American Gas Association
*

**************************************************************************/

#include <windows.h>

/* win32 DLL startup code */

int WINAPI DLLMain(HINSTANCE hInst, DWORD fdwReason, PVOID pvReserved)
{
return TRUE ;
}