[Equest-users] Energy Efficiency Wizard- Outside Air Multiplier

[atowell at cxegroup.com]

Ramya-

I think the equest multiplier is somehow tied to the percent of outside air, not necessarily the consistency of the flow, however I do appreciate the help. I've attached some screenshots that illustrate the options. The first picture is just to show cfm and OA%, the second picture shows the multiplier that is assigned based on the OA percentages. I noticed that if I change the OA%, the multiplier changes at the same ratio; if 10% OA gives me a multiplier of 0.45, 20% OA changes the multiplier to 0.90.

Adam E. Towell
CxE Group LLC
Consulting Engineers
Your Independent, Third-Party Commissioning Authority.
20 Edwardsville Professional Park, Suite A
Edwardsville, Illinois 62025-3602
Phone:    618.659.9461
Fax:        618.659.9589
Email:   atowell at cxegroup.com<mailto:stowell at cxegroup.com>

From: r s [mailto:ramyashivkumar at gmail.com]
Sent: Wednesday, August 15, 2012 1:42 PM
To: atowell at cxegroup.com
Subject: Re: [Equest-users] Energy Efficiency Wizard- Outside Air Multiplier

Hi Adam,

I am not sure about this, but this air multiplier reminds me of this product I saw on the Best Buy website some time ago. (See link)
http://www.bestbuy.com/site/Dyson---Air-Multiplier-10%22-Table-Fan---Satin-Iron/Satin-Blue/9711392.p?id=1218156151142&skuId=9711392

Essentially what this does is it multiplies the air that it takes in and provides a consistent steady flow compared to normal fan with blades. This 10" Dyson fan multiplies the air by 15 times (or thats what they claim to generate breeze). It is noisy. Maybe this is what an outside air multiplier would do as well, if the HVAC system has something like that installed.

Just my 2 cents. Do post on the eQUEST users group know when you figure out.

Regards
Ramya Shivkumar

On Wed, Aug 15, 2012 at 1:21 PM, atowell at cxegroup.com<mailto:atowell at cxegroup.com> <atowell at cxegroup.com<mailto:atowell at cxegroup.com>> wrote:
I just have a quick question-

In the Energy Efficiency Measure Wizard under "Ventilation and Economizer," there's an option to change the "outside air multiplier." What exactly is this? How does it affect the outside air (which I assume it does somehow)?

Adam E. Towell
CxE Group LLC
Consulting Engineers
Your Independent, Third-Party Commissioning Authority.
20 Edwardsville Professional Park, Suite A
Edwardsville, Illinois 62025-3602
Phone:    618.659.9461<tel:618.659.9461>
Fax:        618.659.9589<tel:618.659.9589>
Email:   atowell at cxegroup.com<mailto:stowell at cxegroup.com>


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