CoolProp Code

import matplotlib
matplotlib.use('Qt4Agg')

import numpy 
import CoolProp
import CoolProp.CoolProp as CP


print "Testing the derivatives and store results for "+CoolProp.__gitrevision__

keys = ["dpdT","dpdrho","Z","dZ_dDelta","dZ_dTau","B","dBdT","C","dCdT","phir","dphir_dTau","d2phir_dTau2","dphir_dDelta",
  "d2phir_dDelta2","d2phir_dDelta_dTau","d3phir_dDelta2_dTau","phi0","dphi0_dTau","d2phi0_dTau2","dphi0_dDelta","d2phi0_dDelta2",
  "IsothermalCompressibility"]

multiply = ["VB","dBdT","VC","dCdT","dphir_dDelta","dpdT"]
keys = multiply[:]

fluid = "n-Pentane"

T = numpy.array([ 30,100,150,210])+273.15
D = numpy.array([710, 20, 20,210])

for key in keys:
    liquid    = CP.DerivTerms(key,T[0],D[0],fluid)
    twophase  = CP.DerivTerms(key,T[1],D[1],fluid)
    gaseous   = CP.DerivTerms(key,T[2],D[2],fluid)
    supercrit = CP.DerivTerms(key,T[3],D[3],fluid)
    print '{:<25}: {:>10.5f}; {:>10.5f}; {:>10.5f}; {:>10.5f}'.format(key,liquid,twophase,gaseous,supercrit)

for key in keys:
    liquid    = CP.DerivTermsU(key,T[0],D[0],fluid,'SI')    
    twophase  = CP.DerivTermsU(key,T[1],D[1],fluid,'SI')
    gaseous   = CP.DerivTermsU(key,T[2],D[2],fluid,'SI')    
    supercrit = CP.DerivTermsU(key,T[3],D[3],fluid,'SI')
    print '{:<25}: {:>10.5f}; {:>10.5f}; {:>10.5f}; {:>10.5f}'.format(key,liquid,twophase,gaseous,supercrit)


print 
print "Testing Props: "
for key in keys:
    liquid    = CP.Props(key,"T",float(T[0]),"D",float(D[0]),fluid)
    twophase  = CP.Props(key,"T",float(T[1]),"D",float(D[1]),fluid)
    gaseous   = CP.Props(key,"T",float(T[2]),"D",float(D[2]),fluid)
    supercrit = CP.Props(key,"T",float(T[3]),"D",float(D[3]),fluid)
    print '{:<25}: {:>10.5f}; {:>10.5f}; {:>10.5f}; {:>10.5f}'.format(key,liquid,twophase,gaseous,supercrit)

for key in keys:
    liquid    = CP.PropsU(key,"T",float(T[0]),"D",float(D[0]),fluid,'SI')   
    twophase  = CP.PropsU(key,"T",float(T[1]),"D",float(D[1]),fluid,'SI')   
    gaseous   = CP.PropsU(key,"T",float(T[2]),"D",float(D[2]),fluid,'SI')
    supercrit = CP.PropsU(key,"T",float(T[3]),"D",float(D[3]),fluid,'SI')
    print '{:<25}: {:>10.5f}; {:>10.5f}; {:>10.5f}; {:>10.5f}'.format(key,liquid,twophase,gaseous,supercrit)