[Bldg-sim] EnergyPlus VRF + DOAS modeling

Lee, Sang Hoon hi.sanghoon at gmail.com
Tue Jun 4 07:28:17 PDT 2013

Dear Anderson,

The example file (in EnergyPlus 8.0) is indeed what I was looking for.
This has AirLoopHVAC for DOAS and VRF system, which has separate coils
assigned for each system controlling temperature and humidity.

Thank you!
Sang Hoon

On Mon, Jun 3, 2013 at 4:42 PM, Anderson Letti
<anderson.a.letti at gmail.com>wrote:

> Dear Lee,
> have a look at the example file DOASDXCOIL_wADPBFMethod.idf, version 8.0,
> it may help you!
> Anderson Letti
> 2013/6/3 Lee, Sang Hoon <hi.sanghoon at gmail.com>
>> Hi Bldg-Sim Group,
>> I am working on variable refrigerant flow (VRF) system modeling using
>> EnergyPlus to understand energy savings compared to other conventional
>> systems.
>> For VRF modeling,  I utilized the example file
>> "VariableRefrigerantFlow_5Zone.idf". This example uses outdoor air mixer in
>> each VRF indoor unit for the supply air which goes through cooling and
>> heating coil to the zone inlet node.
>> But, a typical VRF system practice uses a separate DOAS system to reduce
>> cooling and heating load in the VRF side only recirculating return air to
>> be conditioned.
>> I am trying to add DOAS in the VRF modeling. The problem is that
>> HVACTemplate:DOAS (in EnergyPlus 7.2 or 8) does not support this.
>> Is there anybody who did VRF system modeling with adding DOAS?
>> Thank you!
>> --
>> Sang Hoon Lee, Post-doc
>> Building Technology
>> College of Architecture
>> Georgia Institute of Technology
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