Source code for tespy.components.basics.sink
# -*- coding: utf-8
"""Module for class Sink.
This file is part of project TESPy (github.com/oemof/tespy). It's copyrighted
by the contributors recorded in the version control history of the file,
available from its original location tespy/components/basics/sink.py
SPDX-License-Identifier: MIT
"""
import numpy as np
from tespy.components.component import Component
[docs]
class Sink(Component):
r"""
A flow drains in a Sink.
Parameters
----------
label : str
The label of the component.
design : list
List containing design parameters (stated as String).
offdesign : list
List containing offdesign parameters (stated as String).
design_path : str
Path to the components design case.
local_offdesign : boolean
Treat this component in offdesign mode in a design calculation.
local_design : boolean
Treat this component in design mode in an offdesign calculation.
char_warnings : boolean
Ignore warnings on default characteristics usage for this component.
printout : boolean
Include this component in the network's results printout.
Example
-------
Create a sink and specify a label.
>>> from tespy.components import Sink
>>> si = Sink('a labeled sink')
>>> si.component()
'sink'
>>> si.label
'a labeled sink'
"""
[docs]
def exergy_balance(self, T0):
r"""Exergy balance calculation method of a sink.
A sink does not destroy or produce exergy. The value of
:math:`\dot{E}_\mathrm{bus}` is set to the exergy of the mass flow to
make exergy balancing methods more simple as in general a mass flow can
be fuel, product or loss.
Parameters
----------
T0 : float
Ambient temperature T0 / K.
Note
----
.. math::
\dot{E}_\mathrm{bus} = \dot{E}_\mathrm{in}^\mathrm{PH}
"""
self.E_P = np.nan
self.E_F = np.nan
self.E_bus = {
"chemical": self.inl[0].Ex_chemical,
"physical": self.inl[0].Ex_physical,
"massless": 0
}
self.E_D = np.nan
self.epsilon = self._calc_epsilon()