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# -*- coding: utf-8 -*- Copyright (C) 2016, Caleb Bell <Caleb.Andrew.Bell@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.'''
'CoolProp_T_dependent_property', 'PropsSI', 'PhaseSI', 'CP', 'AbstractState']
except ImportError: # pragma: no cover has_CoolProp = False PropsSI, PhaseSI, CP, AbstractState = [None, None, None, None] #has_CoolProp = False # For testing
# All of these can be inputs to the PropsSI function! '106-97-8', '106-98-9', '107-46-0', '107-51-7', '107-52-8', '107-83-5', '108-38-3', '108-88-3', '109-66-0', '110-54-3', '110-82-7', '111-65-9', '111-84-2', '112-39-0', '112-40-3', '112-61-8', '112-62-9', '112-63-0', '1120-21-4', '115-07-1', '115-10-6', '115-11-7', '115-25-3', '124-18-5', '124-38-9', '1333-74-0', '141-62-8', '141-63-9', '142-82-5', '1717-00-6', '2551-62-4', '2837-89-0', '287-92-3', '29118-24-9', '29118-25-0', '301-00-8', '306-83-2', '353-36-6', '354-33-6', '406-58-6', '420-46-2', '421-14-7', '431-63-0', '431-89-0', '460-73-1', '463-58-1', '463-82-1', '540-97-6', '556-67-2', '590-18-1', '593-53-3', '616-38-6', '624-64-6', '630-08-0', '64-17-5', '67-56-1', '67-64-1', '690-39-1', '71-43-2', '74-82-8', '74-84-0', '74-85-1', '74-87-3', '74-98-6', '74-99-7', '7439-90-9', '7440-01-9', '7440-37-1', '7440-59-7', '7440-63-3', '7446-09-5', '75-10-5', '75-19-4', '75-28-5', '75-37-6', '75-43-4', '75-45-6', '75-46-7', '75-68-3', '75-69-4', '75-71-8', '75-72-9', '75-73-0', '754-12-1', '756-13-8', '76-13-1', '76-14-2', '76-15-3', '76-16-4', '76-19-7', '7664-41-7', '7727-37-9', '7732-18-5', '7782-39-0', '7782-41-4', '7782-44-7', '7783-06-4', '7789-20-0', '78-78-4', '811-97-2', '95-47-6']
# Basic object to store constants for a coolprop fluid, much faster than # calling coolprop to retrieve the data when needed 'omega', 'HEOS']
HEOS):
# Store the propoerties in a dict of CP_fluid instances has_melting_line=HEOS.has_melting_line(), Tc=HEOS.T_critical(), Pc=HEOS.p_critical(), Tt=HEOS.Ttriple(), omega=HEOS.acentric_factor(), HEOS=HEOS)
r'''Calculates a property of a chemical in either the liquid or gas phase as a function of temperature only. This means that the property is either at 1 atm or along the saturation curve.
Parameters ---------- T : float Temperature of the fluid [K] CASRN : str CAS number of the fluid prop : str CoolProp string shortcut for desired property phase : str Either 'l' or 'g' for liquid or gas properties respectively
Returns ------- prop : float Desired chemical property, [units]
Notes ----- For liquids above their boiling point, the liquid property is found on the saturation line (at higher pressures). Under their boiling point, the property is calculated at 1 atm.
No liquid calculations are permitted above the critical temperature.
For gases under the chemical's boiling point, the gas property is found on the saturation line (at sub-atmospheric pressures). Above the boiling point, the property is calculated at 1 atm.
An exception is raised if the desired CAS is not supported, or if CoolProp is not available.
The list of strings acceptable as an input for property types is: http://www.coolprop.org/coolprop/HighLevelAPI.html#table-of-string-inputs-to-propssi-function
Examples -------- Water at STP according to IAPWS-95
>>> CoolProp_T_dependent_property(298.15, '7732-18-5', 'D', 'l') 997.0476367603451
References ---------- .. [1] Bell, Ian H., Jorrit Wronski, Sylvain Quoilin, and Vincent Lemort. “Pure and Pseudo-Pure Fluid Thermophysical Property Evaluation and the Open-Source Thermophysical Property Library CoolProp.” Industrial & Engineering Chemistry Research 53, no. 6 (February 12, 2014): 2498-2508. doi:10.1021/ie4033999. http://www.coolprop.org/ ''' if not has_CoolProp: # pragma: no cover raise Exception('CoolProp library is not installed') if CASRN not in coolprop_dict: raise Exception('CASRN not in list of supported fluids') Tc = coolprop_fluids[CASRN].Tc T = float(T) # Do not allow custom objects here if phase == 'l': if T > Tc: raise Exception('For liquid properties, must be under the critical temperature.') if PhaseSI('T', T, 'P', 101325, CASRN) in [u'liquid', u'supercritical_liquid']: return PropsSI(prop, 'T', T, 'P', 101325, CASRN) else: return PropsSI(prop, 'T', T, 'Q', 0, CASRN) elif phase == 'g': if PhaseSI('T', T, 'P', 101325, CASRN) == 'gas': return PropsSI(prop, 'T', T, 'P', 101325, CASRN) else: if T < Tc: return PropsSI(prop, 'T', T, 'Q', 1, CASRN) else: # catch supercritical_gas and friends return PropsSI(prop, 'T', T, 'P', 101325, CASRN) else: raise Exception('Error in CoolProp property function') |