[Bldg-sim] Baseline Modeling for LEED

[Nathan Miller]

I disagree, I believe the models should be same-same on ventilation rates.
See section 90.1 (2004) Section G3.1.2.5. It states:

 

"Minimum outdoor air ventilation rates should be the same for the proposed
and baseline building designs."

 

In my projects (including those that include 30% additional outside air),
I have always used the same outdoor air flow rates, unless I was taking
credit for demand control ventilation in the proposed case (see the
exception allowed in that same ASHRAE section). 

 

Nathan Miller

Senior Energy Engineer/Mechanical Engineer

direct: 206.788.4577

fax: 206.285.7111 

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Rimes,
Christie
Sent: Thursday, November 19, 2009 1:32 PM
To: Steven Rutter; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Baseline Modeling for LEED

 

In  my experience you do not increase the baseline energy model as you are
being awarded (gaining that point) when you achieve the ventilation
credit. There are a few similar situations in LEED where by achieving one
credit will prevent you from achieving another but this happens to
everyone so it works out to be somewhat fair. 

 

Christie Rimes, Building Simulation Analyst
WSP Flack + Kurtz
405 Howard Street, Suite 500
San Francisco, CA 94105
Direct: 415.402.2727
Main Tel: 415.398.3833
Fax: 415.433.5311
website: http://www.wspfk.com
vCard:
http://vcards.wspfk.com/vcardloader.php?filename=flackkurtz-christie-rimes
-wspfk-com-1255981339.vcf
image: 

 

From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Steven Rutter
Sent: Thursday, November 19, 2009 1:25 PM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Baseline Modeling for LEED

 

All,

There is a credit in LEED (EQc2.0) that involves increasing the required
ventilation rate by 30%.  In trying to achieve this credit, the amount of
energy would have to increase to condition that additional 30% OSA.  Does
anyone know if you are supposed to increase the baseline energy model's
ventilation rate so it has the same ventilation rate as the proposed
building?  Thank you in advance for your help.

 

 

Steven Rutter, LEEDR AP, EIT

 

cid:665444518 at 16012009-36B3
3850 Happy Lane|Sacramento, CA 95827
O:916-368-0336|F:916-368-0337|C:916-717-7484

P Please consider the environment before printing this email. 

 

 

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