Dear Chris and Saeran,
I tried the way of Chris and found the Zone Infiltration Standard Density Volume Flow Rate (m3/s), and used to calculate infiltration losses. The infiltration losses of HB and our calculation are quite similar now:
I also found the Site Outdoor Air Humidity Ratio [kgWater/kgDryAir] and Zone Mean Air Humidity Ratio [kgWater/kgDryAir], and used them to calculate the dehumidification demand. Then compare the ventilation losses in HB with the sum of calculated ventilaiton-losses and dehumidification demand. But the difference is much bigger:
This is might be caused by the latent heat of evaporation, which I used 2264000 J/kg. I assume that the latent heat of evaporation should changed with pressure changes. Do you know how I can get the hourly value?
I used google drive to share the excel, as the limit of document on this website:
Best
Tiantian