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27 lines
679 B
Python
27 lines
679 B
Python
import CoolProp
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CPmod = CoolProp.CoolProp
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def get_offset_NBP(name):
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# CPmod.set_debug_level(10)
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CPmod.set_reference_state(name, "RESET")
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HEOS = CoolProp.AbstractState('HEOS', name)
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HEOS.update(CoolProp.PQ_INPUTS, 101325, 0)
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gas_constant = HEOS.gas_constant() / HEOS.molar_mass()
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delta_a1 = HEOS.smass() / (gas_constant)
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delta_a2 = -HEOS.hmass() / (gas_constant * HEOS.keyed_output(CoolProp.iT_reducing))
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return delta_a1, delta_a2
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if __name__ == '__main__':
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name = 'PENTANE'
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import json
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a1, a2 = get_offset_NBP(name)
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print(json.dumps({
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"a1": a1,
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"a2": a2,
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"type": "IdealGasHelmholtzLead"
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}, indent=2))
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