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I have a building with double facades (on south and north side). In winter, the outdoor air is drawn through the southern facade and entered into the room and then exhausted through the northern facade. In summer, the flow is just from north facade(see below for winter case). I have tried to just model southern facade and main room with air loop by considering southern cavity as Plenum zone. See below in the schematic diagram.

• If I have to consider that air is coming from outdoor, I have to add outdoor air node, yes (which is not the case in figure 2 at the moment)?
• secondly, how to specify the northern facade into the air loop?
• How can I reverse the air flow (or control) depending on the season?
• and will it be possible to model Ideal HVAC system with Air loops to evaluate the performance of the building?

I have a building with double facades (on south and north side). In winter, the outdoor air is drawn through the southern facade and entered into the room and then exhausted through the northern facade. In summer, the flow is just from north facade(see below for winter case). I have tried to just model southern facade and main room with air loop by considering southern cavity as Plenum zone. See below in the schematic diagram.

• If I have to consider that air is coming from outdoor, I have to add outdoor air node, yes (which is not the case in figure 2 at the moment)?
• secondly, how to specify the northern facade into the air loop?
• How can I reverse the air flow (or control) depending on the season?
• and will it be possible to model Ideal HVAC system with Air loops to evaluate the performance of the building?

I have a building with double facades (on south and north side). In winter, the outdoor air is drawn through the southern facade and entered into the room and then exhausted through the northern facade. In summer, the flow is just from north facade(see below for winter case). I have tried to just model southern facade and main room with air loop by considering southern cavity as Plenum zone. See below in the schematic diagram.

• If How should I model if I have to consider that the outdoor air is coming into the cavity and then from outdoor, I have to add outdoor air node, yes cavity, it is drawn into the main zone (which is not the case in figure 2 at the moment)?
• secondly, how to specify the northern facade into the air loop?
• How can I reverse the air flow (or control) depending on the season?
• and will it be possible to model Ideal HVAC system with Air loops to evaluate the performance of the building?

I have a building with double facades (on south and north side). In winter, the outdoor air is drawn through the southern facade and entered into the room and then exhausted through the northern facade. In summer, the flow is just from north facade(see below for winter case). I have tried to just model southern facade and main room with air loop by considering southern cavity as Plenum zone. See below in the schematic diagram.

• How should I model if I have to consider that the outdoor air is coming into the cavity and then from cavity, it is drawn into the main zone (which is not the case in figure 2 at the moment)?
• secondly, how to specify the northern facade into the air loop?
• How can I reverse the air flow (or control) depending on the season?
• and will it be possible to model Ideal HVAC system with Air loops to evaluate the performance of the building?