[TRNSYS-users] very slow calculation when pmv is output

[Mariëlle Nuchelmans]

Dear all,

My project is an office with a double facade. I modelled the façade with trnflow. There is NO airlink between the office and the façade. The model works fine, until I wanted the pmv. It gets extremely slow and I get the following message:

Small internal timesteps (<0.1% of simulation timestep) used for humidity calculations due to large coupling air flows between zones!

Does anyone know how to solve this?

Kind regards,

Mariëlle Nuchelmans
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