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Forcing outside temperature to be at worst 0.1 K below the inside temperature (models.py)

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This commit is contained in:
Nicolas Mounet 2020-11-11 14:12:12 +01:00
parent a233a97334
commit ff6f61e9c1
1 changed files with 7 additions and 1 deletions
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8
cara/models.py
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@ -203,6 +203,9 @@ class WindowOpening(Ventilation):
#: used to exchange air (0 <= cd_b <= 1)
cd_b: float = 0.6
#: Minimum difference between inside and outside temperature
min_deltaT: float = 0.1
def transition_times(self) -> typing.Set[float]:
transitions = super().transition_times()
transitions.update(self.inside_temp.transition_times)
@ -218,7 +221,10 @@ class WindowOpening(Ventilation):
outside_temp = self.outside_temp.value(time)
# Reminder, no dependence on time in the resulting calculation.
temp_delta = abs(inside_temp - outside_temp) / outside_temp
if outside_temp < (inside_temp-self.min_deltaT):
temp_delta = (inside_temp - outside_temp) / outside_temp
else:
temp_delta = self.min_deltaT / outside_temp
root = np.sqrt(9.81 * self.window_height * temp_delta)
window_area = self.window_height * self.opening_length * self.number_of_windows
return (3600 / (3 * room.volume)) * self.cd_b * window_area * root