% Example of CoolProp for Octave
% Ian Bell, 2013

CoolProp
disp(['CoolProp version: ', CoolProp.get_global_param_string('version')])
disp(['CoolProp gitrevision: ', CoolProp.get_global_param_string('gitrevision')])
disp(['CoolProp fluids: ', CoolProp.get_global_param_string('FluidsList')])

disp(' ')
disp('************ USING EOS *************')
disp(' ')
disp('FLUID STATE INDEPENDENT INPUTS')
disp(['Critical Density Propane: ', CoolProp.Props1('Propane','rhocrit'), ' kg/m^3'])
disp(['TWO PHASE INPUTS (Pressure)'])
disp(['Density of saturated liquid Propane at 101.325 kPa: ', CoolProp.Props('D','P',101.325,'Q',0,'Propane'), ' kg/m^3'])
disp(['Density of saturated vapor R290 at 101.325 kPa: ', CoolProp.Props('D','P',101.325,'Q',1,'R290'), ' kg/m^3'])
disp(['TWO PHASE INPUTS (Temperature)'])
disp(['Density of saturated liquid Propane at 300 K: ', CoolProp.Props('D','T',300,'Q',0,'Propane'), ' kg/m^3'])
disp(['Density of saturated vapor R290 at 300 K: ', CoolProp.Props('D','T',300,'Q',1,'R290'), ' kg/m^3'])
disp(['SINGLE PHASE CYCLE (propane)'])
p = CoolProp.Props('P','T',300,'D',1,'Propane'); 
h = CoolProp.Props('H','T',300,'D',1,'Propane');
disp(['T,D -> P,H ', 300,',', 1, ' --> ',p,',',h])
T = CoolProp.Props('T','P',p,'H',h,'Propane'); 
D = CoolProp.Props('D','P',p,'H',h,'Propane');
disp(['P,H -> T,D', p,',',h,'-->',T,',',D])
 
disp([' '])
disp(['************ USING TTSE ***************'])
disp([' '])
CoolProp.enable_TTSE_LUT('Propane');
disp(['TWO PHASE INPUTS (Pressure)'])
disp(['Density of saturated liquid Propane at 101.325 kPa: ', CoolProp.Props('D','P',101.325,'Q',0,'Propane'), ' kg/m^3'])
disp(['Density of saturated vapor R290 at 101.325 kPa: ', CoolProp.Props('D','P',101.325,'Q',1,'R290'), ' kg/m^3'])
disp(['TWO PHASE INPUTS (Temperature)'])
disp(['Density of saturated liquid Propane at 300 K: ', CoolProp.Props('D','T',300,'Q',0,'Propane'), ' kg/m^3'])
disp(['Density of saturated vapor R290 at 300 K: ', CoolProp.Props('D','T',300,'Q',1,'R290'), ' kg/m^3'])
disp(['SINGLE PHASE CYCLE (propane)'])
p = CoolProp.Props('P','T',300,'D',1,'Propane'); 
h = CoolProp.Props('H','T',300,'D',1,'Propane');
disp(['T,D -> P,H ', 300,',',1, ' --> ',p,',',h])
T = CoolProp.Props('T','P',p,'H',h,'Propane'); 
D = CoolProp.Props('D','P',p,'H',h,'Propane');
disp(['P,H -> T,D ', p,',',h,' --> ',T,',',D])
CoolProp.disable_TTSE_LUT('Propane');

try
    disp(' ')
    disp('************ USING REFPROP ***************')
    disp(' ')
    disp('FLUID STATE INDEPENDENT INPUTS')
    disp(['Critical Density Propane:', CoolProp.Props('REFPROP-Propane','rhocrit'), 'kg/m^3'])
    disp(['TWO PHASE INPUTS (Pressure)'])
    disp(['Density of saturated liquid Propane at 101.325 kPa: ', CoolProp.Props('D','P',101.325,'Q',0,'REFPROP-Propane'), ' kg/m^3'])
    disp(['Density of saturated vapor R290 at 101.325 kPa: ', CoolProp.Props('D','P',101.325,'Q',1,'REFPROP-Propane'), ' kg/m^3'])
    disp(['TWO PHASE INPUTS (Temperature)'])
    disp(['Density of saturated liquid Propane at 300 K: ', CoolProp.Props('D','T',300,'Q',0,'REFPROP-Propane'), ' kg/m^3'])
    disp(['Density of saturated vapor R290 at 300 K: ', CoolProp.Props('D','T',300,'Q',1,'REFPROP-Propane'), ' kg/m^3'])
    disp(['SINGLE PHASE CYCLE (propane)'])
    p = CoolProp.Props('P','T',300,'D',1,'REFPROP-Propane');
    h = CoolProp.Props('H','T',300,'D',1,'REFPROP-Propane');
    disp(['T,D -> P,H ', 300,',',1, ' --> ',p,',',h])
    T = CoolProp.Props('T','P',p,'H',h,'REFPROP-Propane'); 
    D = CoolProp.Props('D','P',p,'H',h,'REFPROP-Propane');
    disp(['P,H -> T,D ', p,',',h,' --> ',T,',',D])
catch
    disp(' ')
    disp('************ CANT USE REFPROP ************')
    disp(' ')
end
 
 disp([' '])
 disp('************ CHANGE UNIT SYSTEM (default is kSI) *************')
 disp(' ')
 CoolProp.set_standard_unit_system(CoolProp.UNIT_SYSTEM_SI)
 disp(['Vapor pressure of water at 373.15 K in SI units (Pa):',CoolProp.Props('P','T',373.15,'Q',0,'Water')]);
 CoolProp.set_standard_unit_system(CoolProp.UNIT_SYSTEM_KSI)
 disp(['Vapor pressure of water at 373.15 K in kSI units (kPa):',CoolProp.Props('P','T',373.15,'Q',0,'Water')]);
 
disp(' ')
disp('************ BRINES AND SECONDARY WORKING FLUIDS *************')
disp(' ')
disp(['Density of 50% (mass) ethylene glycol/water at 300 K, 101.325 kPa: ', CoolProp.Props('D','T',300,'P',101.325,'EG-50%'), ' kg/m^3'])
disp(['Viscosity of Therminol D12 at 350 K, 101.325 kPa: ', CoolProp.Props('V', 'T', 350, 'P', 101.325, 'TD12'), ' Pa-s'])

disp(' ')
disp('************ HUMID AIR PROPERTIES *************')
disp(' ')
disp(['Humidity ratio of 50% rel. hum. air at 300 K, 101.325 kPa: ', CoolProp.HAProps('W','T',300,'P',101.325,'R',0.5), ' kg_w/kg_da'])
disp(['Relative humidity from last calculation: ', CoolProp.HAProps('R','T',300,'P',101.325,'W',HAProps('W','T',300,'P',101.325,'R',0.5)), '(fractional)'])