Question-and-Answer Resource for the Building Energy Modeling Community
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To those who are interested in this, I have found a solution... Clicking on the dashed line between the "supply equipment" and "demand equipment" on the right side a setting tab for the air loop will open.On the section called "OS:SizingSystem", change the Central Heating Maximum System Air Flow Ratio from autosized to Hardsized = 1. This will force the system to take all outside air hence avoiding mixing.
Another solution is to use a Setpoint Manager Follow System Node Temperature and then set as the Reference Node Name the node that coincides with the outside. For indication about positioning and which node is the outside, see the following figure:
image:
Both solutions led to identical results in terms of total energy consumption, nodes mass flow rates and temperatures.
If anyone has a better solution I will be happy to hear more from you :) This is the best way I could find so far to use a simple infiltration rate...
I hope it helps some of you out there :)
And if anyone needs some indication on how to set up an AirLoop, I used this video: https://www.youtube.com/watch?v=GL_fFPGSeAs
