[EnergyPlus_Support] Re: Many coils in one AHU

["FrancescoP" <fpasserini.tn@xxxxxxxxx>]

A problematic issue is that the DX cooling coil and the DX heating coil are part of the same refrigerant circuit. The goal of the system is the dehumidification. I would like to impose the condition:

heat provided by the DX heating coil =  heat subtracted by the cooling coil + work of the compressor

Is it possible? Or does a better way to model such a system exist? E.g., does a method exist to model explicitly a refrigerant circuit within an AHU?

If it is impossible, I would like to impose at least the following conditions:

1.  IF  the DX cooling coil works  THEN  the DX heating coil works

2.  IF  the DX heating coil works  THEN  the DX cooling coil works

And then I would adjust the COP values.

Any suggestion, please?

Regards
Francesco



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "FrancescoP" <direzionecontraria@...> wrote:
>
> Hello,
> I have to model a dehumidification system (an AHU without outdoor air, only recirculation) in which there are a water cooling coil, a DX cooling coil, a DX heating coil, and another water cooling coil. 
> I begin to model in DesignBuilder, then I export the .idf file in EnergyPlus. As you can read at the following link, modeling such a system directly in DesignBuilder isn't possible:
> http://www.designbuilder.co.uk/index.php?option=com_forum&Itemid=1&page=viewtopic&p=12704#12704
> What is the best way, in your opinion?
> In DesignBuilder shall I begin with an Unitary heat pump or with a Generic Air loop?
> Best Regards
>




------------------------------------

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:
http://www.energyplus.gov

The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/

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.
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/join
    (Yahoo! ID required)

<*> To change settings via email:
    EnergyPlus_Support-digest@xxxxxxxxxxxxxxx 
    EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/