[Equest-users] Ventilation Energy

[Daniel Knapp]

As long as you are careful to allow for economizer operation, this might give you a good sense of the energy load from OA intake. 

—
Daniel Knapp, PhD, P Phys, LEED® AP O+M
danielk at arborus.ca

Arborus Consulting
Energy Strategies for the Built Environment
www.arborus.ca
76 Chamberlain Avenue 
Ottawa, ON, K1S 1V9 
Phone: (613) 234-7178 ext. 113
Fax: (613) 234-0740




On 2013-09-11, at 5:07 PM, "Sami, Vikram" <vikram.sami at zgf.com> wrote:

> I don’t think there is a direct way to do this. Could you just run it with zero outside air and see the difference?
>  
> Another way I guess would be to subtract the space loads from the system loads – which would in theory get you the ventilation loads. This won’t actually tell you how much energy is being used to meet that load though.  Much simpler to zero out the OA.
>  
> Vikram Sami
> Associate Partner
>  
> ZGF ARCHITECTS LLP
> T 206.521.3509 E vikram.sami at zgf.com
> 925 Fourth Avenue, Suite 2400 
> Seattle, WA 98104
>  
> From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Pasha Korber-Gonzalez
> Sent: Wednesday, September 11, 2013 1:28 PM
> To: The Watt Doctors - Dave Weigel
> Cc: eQuest Users
> Subject: Re: [Equest-users] Ventilation Energy
>  
> Hi Dave,   I use the quick and dirty way for peak vent loads from the SV-A report using the multiplier of the supply cfm and the OA% values at the top of the report.  You can also compare the peak Vent CFM at the zone level at the bottom of the report where they show the OA CFM for each zone.
>  
> Does anybody else use hourly reports to compile the Ventilation data?
>  
> Pasha
> www.korberenergyconsultants.com
>  
>  
> 
> On Wed, Sep 11, 2013 at 1:21 PM, The Watt Doctors - Dave Weigel <Dave.Weigel at thewattdoctors.com> wrote:
> Hi eQuest Group,
>  
> I was wondering if there is a quick way to determine how much of the projected energy use in a building is due to conditioning of ventilation air?  I have scoured through the eQuest reports and detailed simulation output but no luck (unless I’m missing something). I suppose I can run the simulation again with ventilation set to zero, but it would be great if it could be drawn straight from the simulation output.
>  
> Thanks!
>  
> Dave
>  
>  
> David R. Weigel, PE
> Managing Member
> 1189 Golden Circle SW,  Lilburn GA 30047
> 678-353-6394 office       901-619-1716 cell
>  
> 
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
> 
>  
> 
> The contents of this email and any attachments to it contain confidential and/or legally privileged information from Zimmer Gunsul Frasca Architects LLP or its affiliates. If you are not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, be aware that any disclosure, copying, distribution, or use of the information contained herein is strictly prohibited. If you received this transmission in error, please contact the sender and destroy the material in its entirety, whether in electronic or hard copy format.
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG