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[EnergyPlus_Support] Mechanical ventilation and earth tube



Hello everybody,

I am modelling passive buildings in E+.

Such buildings have a mechanical ventilation with economizer and heat
exchangers between the fresh air and exhaust fluxes.

The fresh air comes alternatively from either the outside either an
groud air exchanger (earthTube) according to the available
temperatures and the control strategy (heating or cooling).

The problem with E+ is that the outlet of the eathTube is always a
zone and the inlet of the mechanical ventilation the outside air.

Did someone try to model this ?  How ?

If not, is it possible to plug the mechanical ventilation fresh air
inlet into a zone connected to the earth tube ?  We could put a well
insulated small zone in the building for that specific purpose.

Thank you very much for your feedback.  I'll keep researching a
solution in the meantime.

Best regards,

Serge



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