I looked at the output variables in the csv file. This means the simulation is actually accounting for outdoor air at the VRF terminal units.
The report in the html file looks incorrect.
On 2/2/2015 7:54 AM, Ivan Mezzacapa
ivan_slip@xxxxxxxxxxx [EnergyPlus_Support] wrote:
If you check "DesignSpecification:OutdoorAir", the outdoor air flow is specified, but, when simulate, the output show zero outdoor air (in outdoor air summary) in all zones.
Técg. Ivan Mezzacapa
Projetista de Ar Condicionado / Consultor em Eficiência Energética
LinkedIN: http://www.linkedin.com/in/ivanmezzacapaCelular: (11)9963-9326
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: EnergyPlus_Support@xxxxxxxxxxxxxxx
Date: Mon, 2 Feb 2015 07:48:10 -0500
Subject: Re: [EnergyPlus_Support] VRF System - Outdoor Air Summary Zero
In the E+ example file VariableRefrigerantFlow_5Zone.idf,
OUTSIDE AIR INLET NODE 1:System Node Standard Density Volume Flow Rate [m3/s](TimeStep) = 0.102293
ZoneHVAC:TerminalUnit:VariableRefrigerantFlow,
TU1, !- Zone Terminal Unit Name
OutdoorAir:Mixer, !- Outside Air Mixer Object Type
TU1 OA Mixer, !- Outside Air Mixer Object Name
OutdoorAir:Mixer,
TU1 OA Mixer, !- Name
TU1 VRF DX CCoil Inlet Node, !- Mixed Air Node Name
Outside Air Inlet Node 1,!- Outdoor Air Stream Node Name <<<<<<
Relief Air Outlet Node 1,!- Relief Air Stream Node Name
TU1 Inlet Node; !- Return Air Stream Node Name
On 2/2/2015 6:08 AM, Ivan Mezzacapa ivan_slip@xxxxxxxxxxx [EnergyPlus_Support] wrote:
Hi everyone,
I have a problem a long time and I can not solve.
All VRF systems have the output with external air flow zero. I do not know what the problem is.
I used the example file VariableRefrigerantFlow_5Zone.idf, and even then the outside air is zero.
Does anyone know the source of the problem?
Thanks!
Técg. Ivan Mezzacapa
Projetista de Ar Condicionado / Consultor em Eficiência Energética
LinkedIN: http://www.linkedin.com/in/ivanmezzacapaCelular: (11)9963-9326
-- Richard Raustad Florida Solar Energy Center 1679 Clearlake Road Cocoa, FL 32922 Ph: (321)638-1454 http://www.fsec.ucf.edu/en/ Program Director Electric Vehicle Transportation Center http://evtc.fsec.ucf.edu/
-- Richard Raustad Florida Solar Energy Center 1679 Clearlake Road Cocoa, FL 32922 Ph: (321)638-1454 http://www.fsec.ucf.edu/en/ Program Director Electric Vehicle Transportation Center http://evtc.fsec.ucf.edu/
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