[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [EnergyPlus_Support] How to model a ventilation system with air heat exchanger

Option 3: IdealLoadsHVAC with heat exchanger and or economizer

Option 4: I think there is an ERV option which is probably what you're after.

can I use the OutdoorAir:Mixer without mixing the return air?
Yes. The ControllerOutdoorAir object will deturmine how much mixing occurs (you can define DOAS requirements this way).

Mit freundlichen GrüÃ?en- Sent from my iPhone (excuse the brevity)

i. A.
Jean Marais
b.i.g. bechtold
Tel.   +49 30 6706662-23

On 23.10.2013, at 10:24, <welma.pereira@xxxxxxxxx> wrote:


Dear All,

I am modeling a house that has a ventilation system with an air heat exchanger. My problem is to find out which EnergyPlus object to use for that. I have tried two options 

Option1: model an air loop with an AirLoopHVAC:OutdoorAirSystem object

Option2: use a ZoneHVAC:OutdoorAirUnit object

The problem is that using Option1 I can use a heat exchanger like HeatExchanger:AirToAir:SensibleAndLatent for example but I also need to use an OutdoorAir:Mixer, and that is bad because the incoming air should not be mixed with the return air. 

can I use the OutdoorAir:Mixer without mixing the return air?
can I use  the AirLoopHVAC:OutdoorAirSystem object without using the OutdoorAir:Mixer?

If I chose Option2 according to the example file OutdoorAirUnit.idf I need to define a fan for each zone which I think does not represent a real system, you would probably have just one fan to ventilate the whole house or not?

My ultimate question is which system is better to represent a ventilation system of a house with an air heat exchanger?

Does anybody have to do that before?



Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx

The primary EnergyPlus web site is found at:

The group web site is:

Attachments are currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.

Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe