I found some .idf files that are of infiltration schedules. I found the infiltration schedule some odd! beacouse it is different throught the year. I want to know why they are different? thanks
Generally, the winter winds are stronger, thus making infiltration higher. Infiltration, in my opinion, is difficult to model accurately. I like the treatment described by Lisa Ng, Steven Emmerich and Andrew Persily in NIST Technical Note 1829. (http://dx.doi.org/10.6028/NIST.TN.1829)
It provides coefficients which vary infiltration by wind speed, though you still need to assign a base rate for the infiltration.
The zone air (Tzone) to outdoor air (Todb) temperature difference is also greater in the winter than the summer.
https://bigladdersoftware.com/epx/doc...
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