[EnergyPlus_Support] Re: Mechanical Ventilation

["rowan.blakers" <rblakers@xxxxxxxxx>]

Hello,

It looks like my last message got lost somehow - I'll try again.

To model an exhaust fan, use the Fan:ZoneExhaust component. If the fan exhausts directly outside, use a unique node name for the outlet node. This node will function as the outdoors. Alternatively, you could connect the exhaust outlet node to the inlet for some kind of heat recovery system.

If you specify an exhaust without some kind of air supply, the air flows will be unbalanced and E+ will give you a warning. You will need to include some kind of air supply to balance the exhaust. This could be mechanical, or if there is no mechanical supply you could use ZoneInfiltration:DesignFlowRate. If you use infiltration only you will still get a warning about unbalanced airflows, which you could ignore in this case.

For further information, you should look in the Input-Output Reference. There is also further documentaion available from the main E+ website, or the support site:

http://energyplus.helpserve.com/index.php

Regards,
Rowan




--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "rowan.blakers" <rblakers@...> wrote:
>
> 
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "avellut" <avellut@> wrote:
> >
> >   Hi all,
> > 
> > I'm beginner on E+.
> > I'm currently trying to model a mechanical ventilation system with auto-adjustable exhaust vents. Air will be exhaust by an exhaust fan placed on the roof of the building. 
> > 
> > On Skectchup, I've created a 3-room apartment, every room is model by a zone. I would like to know how coud I do to exhaut 105 m^3 per hour for the kitchen (zone1) and 30m^3 per hour for the bathroom for instance.
> > 
> > The aim of this study is to model the mechanical ventilation system for the entire building and calulate the total flow rate, temperature and humidity of air in the exhaust fan.
> > 
> > Many thanks in advance for your help.
> >
>




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