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75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
from CoolProp.Plots.Plots import hs
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import CoolProp
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from CoolProp.CoolProp import Props
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import matplotlib.pyplot as plt
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import numpy as np
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Fluid = 'Nitrogen'
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fig = plt.figure()
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ax = fig.add_subplot(111)
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for Fluid in CoolProp.__fluids__:
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if Fluid == 'SES36':
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continue
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ax.cla()
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h_crit = Props('H','T',Props(Fluid,"Tcrit"),'D',Props(Fluid,"rhocrit"),Fluid)
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s_crit = Props('S','T',Props(Fluid,"Tcrit"),'D',Props(Fluid,"rhocrit"),Fluid)
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hL_Tmin = Props('H','T',Props(Fluid,"Tmin"),'Q',0,Fluid)
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hV_Tmin = Props('H','T',Props(Fluid,"Tmin"),'Q',1,Fluid)
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sL_Tmin = Props('S','T',Props(Fluid,"Tmin"),'Q',0,Fluid)
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sV_Tmin = Props('S','T',Props(Fluid,"Tmin"),'Q',1,Fluid)
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hs(Fluid, axis = ax)
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plt.plot(s_crit,h_crit,'rd')
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plt.plot([sL_Tmin,sV_Tmin],[hL_Tmin,hV_Tmin],'--')
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plt.gca().axhline(h_crit)
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plt.gca().axhline(hV_Tmin)
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# Two-Phase
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for T in np.linspace(Props(Fluid,"Tmin")+0.1,Props(Fluid,"Tcrit")-1e-3,30):
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for Q in np.linspace(0, 1, 30):
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try:
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h = Props("H",'Q',Q,'T',T,Fluid)
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s = Props("S",'Q',Q,'T',T,Fluid)
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T = Props("T",'S',s,'H',h,Fluid)
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#ax.plot(s,h,'o',mfc='none')
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except ValueError as VE:
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print T, Q , '|||', '"T","S",',s,',"H",',h,',"'+Fluid+'"', '|||', VE
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ax.plot(s,h,'o',mfc='none')
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for h in np.linspace(hL_Tmin, hV_Tmin + 1500,100):
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for s in np.linspace(sL_Tmin+0.01,sV_Tmin,100):
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try:
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h_pmax = Props('H','S',s,'P',6*Props(Fluid,'pcrit'),Fluid)
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except ValueError:
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h_pmax = 0
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htriple_s = (hV_Tmin-hL_Tmin)/(sV_Tmin-sL_Tmin)*(s-sL_Tmin)+hL_Tmin
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if h < htriple_s or h > h_pmax: continue
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try:
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T = Props("T",'S',s,'H',h,Fluid)
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#ax.plot(s,h,'o',mfc='none',ms=6)
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except ValueError:
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ax.plot(s,h,'s',mfc='none')
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## if Fluid =='Propane':
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## ps = Props("P",'T',300,'Q',0,Fluid);
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## hL = Props("H",'Q',0,'T',300,Fluid);
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## sL = Props("S",'Q',0,'T',300,Fluid);
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## h = Props("H",'P',ps,'T',299.5,Fluid);
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## s = Props("S",'P',ps,'T',299.5,Fluid);
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## print s,h,sL,hL
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## plt.plot(s,h,'o')
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## plt.plot(sL,hL,'d')
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## plt.gca().axvline(s)
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## plt.gca().axhline(268.75968916316691)
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fig.savefig('figs/'+Fluid+'.png',dpi=200)
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fig.savefig('figs/'+Fluid+'.pdf')
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