[esp-r] plant cooling coil makes trouble

[Hall Monika]

Dear all,

 

some days ago I send my problem with the fan control around. Unfortunately
nobody answered me.

 

My model includes a "Raum" (like an office), an air flow net and a plant.
The air flow net consists of a fan and some openings. The fan makes from
7:00 -18:00 an constant air change rate of 1.0 ach and otherwise 0.5 ach.

The plant includes a cooling coil and some ducts only.

 

Now I have done some further experiments. Please see the attachement.

 

My problems are:

When the cooling coil (plant) works, the set-up of the fan in the flow net
work gets in big trouble and the note-temperatures are different in the
network and in the flow net work.

 

Did anyone know this problem?

Is a plant without fan possible?

What can I do?

 

Regards

Monika

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