Cantera 2.6.0

HFC134a.h
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1//! @file HFC134a.h
2
3// This file is part of Cantera. See License.txt in the top-level directory or
4// at https://cantera.org/license.txt for license and copyright information.
5
6#ifndef TPX_HFC134_H
7#define TPX_HFC134_H
8
9#include "cantera/tpx/Sub.h"
10
11 namespace tpx
12{
13//! Equation of state for HFC-134a.
14//!
15//! Implements the equation of state given in:
16//! R. Tillner-Roth and H. D. Baehr. "An International Standard Formulation for
17//! The Thermodynamic Properties of 1,1,1,2-Tetrafluoroethane (HFC-134a) for
18//! Temperatures From 170 K to 455 K and Pressures up to 70 MPa". J. Phys.
19//! Chem. Ref. Data, Vol. 23, No. 5, 1994. pp. 657--729.
20//! http://dx.doi.org/10.1063/1.555958
21 class HFC134a : public Substance
22{
23 public:
24 HFC134a() {
25 m_name = "HFC-134a";
26 m_formula = "C2F4H2";
27 }
28
29 double MolWt();
30 double Tcrit();
31 double Pcrit();
32 double Vcrit();
33 double Tmin();
34 double Tmax();
35
36 double Pp();
37 double fp();
38 double up();
39 double sp() {
40 return ((up() - m_energy_offset) - fp())/T + m_entropy_offset;
41 }
42 double Psat();
43 private:
44 double ldens();
45};
46}
47#endif // ! HFC134_H
Sub.h
tpx::HFC134a
Equation of state for HFC-134a.
Definition: HFC134a.h:22
tpx::HFC134a::Vcrit
double Vcrit()
Critical specific volume [m^3/kg].
Definition: HFC134a.cpp:189
tpx::HFC134a::Tmax
double Tmax()
Maximum temperature for which the equation of state is valid.
Definition: HFC134a.cpp:197
tpx::HFC134a::Tmin
double Tmin()
Minimum temperature for which the equation of state is valid.
Definition: HFC134a.cpp:193
tpx::HFC134a::MolWt
double MolWt()
Molecular weight [kg/kmol].
Definition: HFC134a.cpp:201
tpx::HFC134a::sp
double sp()
Entropy of a single-phase state.
Definition: HFC134a.h:39
tpx::HFC134a::Tcrit
double Tcrit()
Critical temperature [K].
Definition: HFC134a.cpp:181
tpx::HFC134a::Pcrit
double Pcrit()
Critical pressure [Pa].
Definition: HFC134a.cpp:185
tpx::HFC134a::Psat
double Psat()
Saturation pressure, Pa.
Definition: HFC134a.cpp:156
tpx::HFC134a::up
double up()
Internal energy of a single-phase state.
Definition: HFC134a.cpp:94
tpx::Substance
Definition: Sub.h:38