Re: [EnergyPlus_Support] Control of AirTerminal:SingleDuct:VAV:Reheat - Sizing Problem [2 Attachments]

["Javed Iqbal eee.javed@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

Here I am attaching copy of  IDF file (v8.8) plus Chicago weather file in case you might need it. 

Thank you so much.

On Thu, Mar 15, 2018 at 5:38 PM, Jim Dirkes jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

 

Happy to review your IDF...

On Thu, Mar 15, 2018 at 6:57 AM Javed Iqbal eee.javed@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@yahoogroups.com> wrote:

 

Dear All,

I assigned a typical VAV system (Baseline System 5) with reheat but there are many heating unmet hours in the zones served by the system. I did most of the quality checks (correct OA, zone setpoints, zone and system sizing etc.) to see where the problem lies. And i found ' AirTerminal:SingleDuct:VAV:Reheat' is NOT active or sizing is zero in HTML report. To further ascertain the cause of the problem, I plotted temperatures [ see attachment] at all the nodes to see the temperature regime. This also shows that reheat coil doesn't raise the air temperature to meet the room set-point.  

This is being simulated for CZ5A.

I also tried to look out for some solutions discussed here [ LINK LINK ] but unfortunately nothing works for me. 

I would appreciate any help in this regard.

Thank you,  

--

Javed Iqbal, LEED AP, CEA

Sr. Energy Analyst 

--

James V Dirkes II, CEO / President
The Building Performance Team Inc.
1631 Acacia Dr, Grand Rapids, MI 49504

(alphabet soup of efforts for greater understanding: PE, BEMP, BCxP, LEED AP)

Direct / Mobile: 616.450.8653
jim@buildingperformanceteam.com

Website l  LinkedIn

Coffee conversation:
The first idea is the worst, but it is the most important because it starts discussion and becomes the building block for other ideas.

--

Javed Iqbal, LEED AP, CEA

Sr. Energy Analyst 

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Posted by: Javed Iqbal <eee.javed@xxxxxxxxx>

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Attachment not found:
D:\Eudora\Attach\BaseCase_FORQC.idf

Attachment not found:
D:\Eudora\Attach\USA_IL_Chicago-OHare.Intl.AP.725300_TMY3.epw