Pure species representation of heptane. More...
#include <Heptane.h>
Pure species representation of heptane.
Values and functions are from Reynolds [38].
Public Member Functions | |
double | MolWt () override |
Molecular weight [kg/kmol]. | |
double | Tcrit () override |
Critical temperature [K]. | |
double | Pcrit () override |
Critical pressure [Pa]. | |
double | Vcrit () override |
Critical specific volume [m^3/kg]. | |
double | Tmin () override |
Minimum temperature for which the equation of state is valid. | |
double | Tmax () override |
Maximum temperature for which the equation of state is valid. | |
double | Pp () override |
Pressure. Equation P-2 in Reynolds. | |
double | up () override |
Internal energy. | |
double | sp () override |
Entropy. See Reynolds eqn (16) section 2. | |
double | Psat () override |
Pressure at Saturation. Equation S-2 in Reynolds. | |
Public Member Functions inherited from Substance | |
void | setStdState (double h0=0.0, double s0=0.0, double t0=298.15, double p0=1.01325e5) |
virtual double | Pp ()=0 |
double | hp () |
Enthalpy of a single-phase state. | |
double | gp () |
Gibbs function of a single-phase state. | |
double | prop (propertyFlag::type ijob) |
void | set_TPp (double t0, double p0) |
set T and P | |
void | Set (PropertyPair::type XY, double x0, double y0) |
Function to set or change the state for a property pair XY where x0 is the value of first property and y0 is the value of the second property. | |
const char * | name () |
Name of the substance. | |
const char * | formula () |
Chemical formula for the substance. | |
double | P () |
Pressure [Pa]. | |
double | Temp () |
Temperature [K]. | |
double | v () |
Specific volume [m^3/kg]. | |
double | u () |
Internal energy [J/kg]. | |
double | h () |
Enthalpy [J/kg]. | |
double | s () |
Entropy [J/kg/K]. | |
double | f () |
Helmholtz function [J/kg]. | |
double | g () |
Gibbs function [J/kg]. | |
virtual double | cv () |
Specific heat at constant volume [J/kg/K]. | |
virtual double | cp () |
Specific heat at constant pressure [J/kg/K]. | |
virtual double | thermalExpansionCoeff () |
virtual double | isothermalCompressibility () |
double | Ps () |
virtual double | dPsdT () |
The derivative of the saturation pressure with respect to temperature. | |
double | Tsat (double p) |
Saturation temperature at pressure p. | |
double | x () |
Vapor mass fraction. | |
int | TwoPhase (bool strict=false) |
Returns 1 if the current state is a liquid/vapor mixture, 0 otherwise. | |
Private Member Functions | |
double | ldens () override |
liquid density. Equation D2 in Reynolds. | |
double | C (int jm, double, double, double, double) |
C returns a multiplier in each term of the sum in P-2, used in conjunction with C in the function Pp. | |
double | Cprime (int i, double, double, double) |
derivative of C(i) | |
double | I (int i, double, double) |
I = integral from o-rho { 1/(rho^2) * H(i, rho) d rho } ( see section 2 of Reynolds TPSI ) | |
double | H (int i, double egrho) |
H returns a multiplier in each term of the sum in P-2. | |
Additional Inherited Members | |
Protected Member Functions inherited from Substance | |
virtual double | ldens ()=0 |
virtual double | Psat ()=0 |
Saturation pressure, Pa. | |
virtual double | up ()=0 |
Internal energy of a single-phase state. | |
virtual double | sp ()=0 |
Entropy of a single-phase state. | |
virtual int | ideal () |
double | vp () |
int | Lever (int itp, double sat, double val, propertyFlag::type ifunc) |
Uses the lever rule to set state in the dome. | |
void | update_sat () |
Update saturated liquid and vapor densities and saturation pressure. | |
Protected Attributes inherited from Substance | |
double | T = Undef |
double | Rho = Undef |
double | Tslast = Undef |
double | Rhf = Undef |
double | Rhv = Undef |
double | Pst = Undef |
double | m_energy_offset = 0.0 |
double | m_entropy_offset = 0.0 |
std::string | m_name |
std::string | m_formula |
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overridevirtual |
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overridevirtual |
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overridevirtual |
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overridevirtual |
Critical specific volume [m^3/kg].
Implements Substance.
Definition at line 246 of file Heptane.cpp.
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overridevirtual |
Minimum temperature for which the equation of state is valid.
Implements Substance.
Definition at line 250 of file Heptane.cpp.
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overridevirtual |
Maximum temperature for which the equation of state is valid.
Implements Substance.
Definition at line 254 of file Heptane.cpp.
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overridevirtual |
Pressure. Equation P-2 in Reynolds.
Implements Substance.
Definition at line 191 of file Heptane.cpp.
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overridevirtual |
Internal energy.
See Reynolds eqn (15) section 2 u = (the integral from T to To of co(T)dT) + sum from i to N ([C(i) - T*Cprime(i)] + uo
Implements Substance.
Definition at line 150 of file Heptane.cpp.
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overridevirtual |
Entropy. See Reynolds eqn (16) section 2.
Implements Substance.
Definition at line 171 of file Heptane.cpp.
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overridevirtual |
Pressure at Saturation. Equation S-2 in Reynolds.
Implements Substance.
Definition at line 206 of file Heptane.cpp.
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overrideprivatevirtual |
liquid density. Equation D2 in Reynolds.
Implements Substance.
Definition at line 221 of file Heptane.cpp.
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private |
C returns a multiplier in each term of the sum in P-2, used in conjunction with C in the function Pp.
Definition at line 79 of file Heptane.cpp.
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private |
derivative of C(i)
Definition at line 101 of file Heptane.cpp.
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private |
I = integral from o-rho { 1/(rho^2) * H(i, rho) d rho } ( see section 2 of Reynolds TPSI )
Definition at line 121 of file Heptane.cpp.
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private |
H returns a multiplier in each term of the sum in P-2.
this is used in conjunction with C in the function Pp this represents the product rho^n
Definition at line 137 of file Heptane.cpp.