mirror of
https://github.com/CoolProp/CoolProp.git
synced 2026-01-09 14:08:08 -05:00
97 lines
3.4 KiB
Python
97 lines
3.4 KiB
Python
from __future__ import print_function
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import os.path
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import CoolProp, CoolProp.CoolProp as CP
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import subprocess
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import sys
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web_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
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root_dir = os.path.abspath(os.path.join(web_dir, '..'))
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fluids_path = os.path.join(web_dir, 'fluid_properties', 'fluids')
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plots_path = os.path.join(web_dir, 'fluid_properties', 'fluids', 'REFPROPplots')
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template = """
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from __future__ import division, print_function
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import matplotlib
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matplotlib.use('Agg') # Use a non-GUI backend
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import numpy as np, matplotlib.pyplot as plt
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import CoolProp
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CP = CoolProp.CoolProp
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fluid = '{fluid:s}'
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fig, ax = plt.subplots()
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plt.ylim(10**-18, 10**2)
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not_in_REFPROP = False
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try:
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if CP.get_fluid_param_string(fluid, "REFPROP_name") == 'N/A':
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not_in_REFPROP = True
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else:
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RPfluid = 'REFPROP::' + CP.get_fluid_param_string(fluid, "REFPROP_name")
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CAS = CP.get_fluid_param_string(RPfluid, "CAS")
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except (RuntimeError,ValueError) as E:
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not_in_REFPROP = True
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if not_in_REFPROP:
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ax.set_xlim(0,1)
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xlims = ax.get_xlim()
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ylims = ax.get_ylim()
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ax.plot([xlims[0],xlims[1]],[ylims[0],ylims[1]],lw = 3,c = 'r')
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ax.plot([xlims[0],xlims[1]],[ylims[1],ylims[0]],lw = 3,c = 'r')
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x = 0.5
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y = (ylims[0]*ylims[1])**0.5
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ax.text(x,y,'Not\\nin\\nREFPROP',ha='center',va ='center',bbox = dict(fc = 'white'))
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else:
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RPfluid = 'REFPROP::' + CP.get_fluid_param_string(fluid, "REFPROP_name")
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symbols = ["o", "v", "^", "<", ">","8", "s","p","*","h","H","+","x"]
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T = np.min([1.01*CP.PropsSI(fluid, 'Tcrit'),CP.PropsSI(fluid, 'Tmax')])
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rhoc = CP.PropsSI(fluid, 'rhomolar_critical')
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# Normal properties
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rho = np.linspace(1e-10, 2*rhoc)
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normalkeys = ['P','V','L','Cpmolar','Cvmolar']
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RPdata = CP.PropsSI(normalkeys, 'T', T, 'Dmolar', rho, RPfluid)
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CPdata = CP.PropsSI(normalkeys, 'T', T, 'Dmolar', rho, fluid)
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for i, key in enumerate(normalkeys):
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plt.plot(rho/rhoc, np.abs(RPdata[:,i]/CPdata[:,i]-1)*100, lw = 0, label = key, marker = symbols[i%len(symbols)])
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# Special properties
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rho = np.linspace(1e-10, 2*rhoc)
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keys = ['Hmolar','Smolar']
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for i, key in enumerate(keys):
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RPdata = CP.PropsSI(key, 'T', T, 'Dmolar', rho, RPfluid) - CP.PropsSI(key, 'T', T, 'Dmolar', 1, RPfluid)
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CPdata = CP.PropsSI(key, 'T', T, 'Dmolar', rho, fluid) - CP.PropsSI(key, 'T', T, 'Dmolar', 1, fluid)
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plt.plot(rho/rhoc, np.abs(RPdata/CPdata-1)*100, lw = 0, label = key, marker = symbols[(i+len(normalkeys))%len(symbols)])
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ax.legend(loc='best', ncol = 2)
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plt.xlabel(r'Reduced density [$\\rho/\\rho_c$]')
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plt.ylabel(r'Relative deviation $(y_{{CP}}/y_{{RP}}-1)\\times 100$ [%]')
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ax.set_yscale('log')
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plt.title('Comparison between CoolProp and REFPROP({rpv:s}) along T = 1.01*Tc')
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plt.savefig(fluid+'.png', dpi = 100)
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plt.savefig(fluid+'.pdf')
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plt.close('all')
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"""
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if not os.path.exists(plots_path):
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os.makedirs(plots_path)
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with open(os.path.join(plots_path, 'matplotlibrc'), 'w') as fp:
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fp.write("backend : agg\n")
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for fluid in CoolProp.__fluids__:
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print('fluid:', fluid)
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file_string = template.format(fluid=fluid, rpv=CP.get_global_param_string("REFPROP_version"))
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file_path = os.path.join(plots_path, fluid + '.py')
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print('Writing to', file_path)
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with open(file_path, 'w') as fp:
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fp.write(file_string)
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subprocess.check_call('python "' + fluid + '.py"', cwd=plots_path, stdout=sys.stdout, stderr=sys.stderr, shell=True)
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