DWSIM Class Library Documentation
DWSIM
DWSIM Namespaces
DWSIM.Thermodynamics Namespaces
DWSIM.Thermodynamics.PropertyPackages.Auxiliary
Seawater Class
Seawater Methods
a Method
add_barrier Method
air_massfraction_air_si Method
air_massfraction_vap_si Method
air_molar_mass_si Method
air_molfraction_air_si Method
air_molfraction_vap_si Method
arccos Method
arcsin Method
asal_from_psal Method
aux_density_critical_si Method
aux_density_EOS80_si Method
aux_density_ideal_si Method
aux_liq_density_critical_si Method
aux_liq_density_f03_si Method
aux_liq_density_if97_si Method
aux_liq_g_f03_si Method
aux_liq_g_if97_si Method
aux_vap_density_critical_si Method
aux_vap_density_if97_si Method
aux_vap_g_if97_si Method
b Method
c Method
chk_IAPWS08_Table8a Method
chk_IAPWS08_Table8b Method
chk_IAPWS08_Table8c Method
chk_IAPWS95_Table6 Method
chk_IAPWS95_Table7 Method
cnd_from_sal78 Method
cnv_pressure Method
cnv_salinity Method
cnv_temperature Method
delta_ Method
delta_d Method
delta_dd Method
deltab_d Method
deltab_dd Method
deltab_dt Method
deltab_t Method
deltab_tt Method
DensityIteration_Brent Method
DensityIteration_Newton Method
DensityIteration_Secant Method
dsal Method
EFormat Method
entropy_iteration Method
flu_f_si Method
flu_t_p_derivative_si Method
gamma_0 Method
gamma_1 Method
gamma_2 Method
gamma_r Method
get_CubicRoots Method
get_it_ctrl_density Method
gsw_adjust_baltic Method
indx Method
init_it_ctrl_density Method
init_it_ctrl_entropy Method
init_it_ctrl_pottemp Method
init_it_ctrl_salinity Method
InitF03 Method
InitIAPWS08 Method
InitIAPWS95 Method
InitIF97_1 Method
InitIF97_2 Method
liq_density_si Method
liq_g_si Method
matrix_invert Method
matrix_solve Method
max Method
p_si_from_psea_pa Method
phi0_ Method
phi0_d Method
phi0_dd Method
phi0_dt Method
phi0_t Method
phi0_tt Method
phir_ Method
phir_d Method
phir_dd Method
phir_dt Method
phir_t Method
phir_tt Method
poly_gtp Method
poly_gyz Method
polyf03_gyz Method
pottemp_iteration Method
present Method
psal_from_asal Method
psea_bar_from_psea_pa Method
psea_pa_from_p_si Method
psea_pa_from_psea_bar Method
psi_ Method
psi_d Method
psi_dd Method
psi_dt Method
psi_t Method
psi_tt Method
rt35 Method
saar_add_mean Method
sal Method
sal_act_coeff_si Method
sal_act_potential_si Method
sal_activity_w_si Method
sal_chem_coeff_si Method
sal_chempot_h2o_si Method
sal_chempot_rel_si Method
sal_dilution_si Method
sal_g_si Method
sal_g_term_si Method
sal_mixenthalpy_si Method
sal_mixentropy_si Method
sal_mixvolume_si Method
sal_molality_si Method
sal_osm_coeff_si Method
sal_saltenthalpy_si Method
sal_saltentropy_si Method
sal_saltvolume_si Method
sal78_from_cnd Method
salinity_iteration Method
Sea_3a_example_call Method
sea_alpha_ct_si Method
sea_alpha_pt0_si Method
sea_alpha_t_si Method
sea_beta_ct_si Method
sea_beta_pt0_si Method
sea_beta_t_si Method
sea_cabb_ct_si Method
sea_cabb_pt0_si Method
sea_chempot_h2o_si Method
sea_chempot_rel_si Method
sea_cp_si Method
sea_ctmp_from_ptmp0_si Method
sea_density_si Method
sea_enthalpy_si Method
sea_entropy_si Method
sea_eta_contraction_h_si Method
sea_eta_contraction_t_si Method
sea_eta_contraction_theta_si Method
sea_eta_density_si Method
sea_eta_entropy_si Method
sea_eta_entropy_x_si Method
sea_eta_expansion_h_si Method
sea_eta_expansion_t_si Method
sea_eta_expansion_theta_si Method
sea_eta_potdensity_si Method
sea_eta_pottemp_si Method
sea_eta_temperature_si Method
sea_g_contraction_t_si Method
sea_g_expansion_t_si Method
sea_g_si Method
sea_gibbs_energy_si Method
sea_h_contraction_h_si Method
sea_h_contraction_t_si Method
sea_h_contraction_theta_si Method
sea_h_expansion_h_si Method
sea_h_expansion_t_si Method
sea_h_expansion_theta_si Method
sea_h_si Method
sea_internal_energy_si Method
sea_kappa_s_si Method
sea_kappa_t_si Method
sea_lapserate_si Method
sea_osm_coeff_si Method
sea_potdensity_si Method
sea_potenthalpy_si Method
sea_pottemp_si Method
sea_ptmp0_from_ctmp_si Method
sea_s_eta_p_derivatives_si Method
sea_sa_si Method
sea_soundspeed_si Method
sea_surfacetension Method
sea_temp_maxdensity_si Method
sea_temperature_si Method
sea_thermalcond Method
sea_thrmb_ct_si Method
sea_thrmb_pt0_si Method
sea_vaporpressure Method
sea_viscosity Method
set_it_ctrl_density Method
set_it_ctrl_entropy Method
set_it_ctrl_pottemp Method
set_it_ctrl_salinity Method
Sort3up Method
sum Method
sw_dpth Method
sw_pres Method
Swap Method
t_c_from_t_k Method
t_k_from_t_c Method
t_si_from_t48_k Method
t_si_from_t68_k Method
t68_k_from_t_si Method
t68_k_from_t48_k Method
theta_ Method
TwoCols Method
vap_density_si Method
vap_g_si Method
xinterp1 Method
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Seawaterair_molfraction_vap_si Method

returns the mole fraction of vapour in humid air in mol mol-1 as a function of the air mass fraction, a_si, in kg/kg

Namespace: DWSIM.Thermodynamics.PropertyPackages.Auxiliary
Assembly: DWSIM.Thermodynamics (in DWSIM.Thermodynamics.dll) Version: 8.8.1.0
Syntax
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public double air_molfraction_vap_si(
	double a_si
)
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Parameters

a_si  Double

Return Value

Double
See Also