After creating an HB room for a heated space, I ran the HB Energy simulation to obtain operative temperatures. I simplified my room by customizing the constructon set and specifying that it is conditioned with setpoints. However, I removed the internal loads because the results were even worse with them.
For context, this is an apartment surrounded by other apartments, with a winter garden added on the exterior side.
For now, I only want to simulate the apartment space alone.
I don’t understand why the operative temperature is so high—over 40°C in summer.
I’m not sure what could be missing or what the problem is, but in its current state, the results are really surprising!
From a quick look at your screen capture, I think the cause is setting the max_in_temp 24 and the cooling setpoint at 60.
max_in_temp:
A number between -100 and 100 for the maximum indoor temperature at which to ventilate in Celsius. This can be used to set a maximum temperature at which point ventilation is stopped and a cooling system is turned on. (Default: 100 C).
This is how the vent_control component understands the input. So it would mean the window closes when internal temperature is above 24 but no cooling is added until it reaches 60.
I used these data and the results for the heated space alone seem consistent.
However, my new problem is that when I simulate the dwelling with the winter garden next to it, I get very high temperatures in the dwelling despite natural ventilation.
The attached photo shows the two temperature curves.
I don’t know if the error comes from a ventilation issue or something else?
I am also attaching my Grasshopper file with the geometry internalized. thermal simulation.gh (238.5 KB)
The ventilation control only control apertures on the exterior surface if I’m not mistaken. Interior apertures that faces another zone are not controlled by this component.
