def test_allocate_emissions():
emissions_dict = {}
for method in ['iea', 'efficiency', 'finnish']:
emissions_dict[method] = allocate_emissions(total_emissions=200,
eta_el=0.3,
eta_th=0.5,
method=method,
eta_el_ref=0.525,
eta_th_ref=0.82)
result = {
'iea': (75.0, 125.0),
'efficiency': (125.0, 75.0),
'finnish': (96.7551622418879, 103.24483775811208)
}
assert emissions_dict == result
def test_allocate_emission_series():
emissions_dict = {}
for method in ['iea', 'efficiency', 'finnish']:
emissions_dict[method] = allocate_emissions(
total_emissions=pd.Series([200, 200]),
eta_el=pd.Series([0.3, 0.3]),
eta_th=pd.Series([0.5, 0.5]),
method=method,
eta_el_ref=pd.Series([0.525, 0.525]),
eta_th_ref=pd.Series([0.82, 0.82]))
default = {
'iea': (pd.Series([75.0, 75.0]), pd.Series([125.0, 125.0])),
'efficiency': (pd.Series([125.0, 125.0]), pd.Series([75.0, 75.0])),
'finnish': (pd.Series([96.7551622418879, 96.7551622418879]),
pd.Series([103.24483775811208, 103.24483775811208]))
}
for key in default:
for em_result, em_default in zip(emissions_dict[key], default[key]):
assert em_result.equals(em_default),\
f"Result \n{em_result} does not match default \n{em_default}"
Example on emission allocation in cogeneration.
"""
import pandas as pd
import matplotlib.pyplot as plt
from oemof.thermal.cogeneration import allocate_emissions
emissions_dict = {}
for method in ['iea', 'efficiency', 'finnish']:
emissions_dict[method] = allocate_emissions(
total_emissions=200, # Arbitrary units. Assume [kgCO2].
eta_el=0.3,
eta_th=0.5,
method=method,
eta_el_ref=0.525,
eta_th_ref=0.82)
df = pd.DataFrame(emissions_dict, index=['el', 'th']).T
print(df)
fig, ax = plt.subplots()
df.loc[:, 'el'] *= -1
bars = df.plot.barh(stacked=True, ax=ax)
for i, (el, th) in enumerate(zip(df['el'], df['th'])):
ax.text(el, i, round(-el), ha='left')
ax.text(th, i, round(th), ha='right')