[Bldg-sim] Large Process Loads and Baseline Systems

[Martin Roy ing. LEED AP]

Hi William,
We did a Leed warehouse herre in Canada but it 
was version NC 1.0, your 2.2 version.
In that case process energy has to be remove for comparaison with baseline.
We aslo can reclaim up to 2 credit in process 
energy i.e. heat recovery from refrigeration.
If it is Leed 2009 than you have to include 
process energy in baseline and proposed.

Hope this help

Martin



At 11:38 24/05/2011, Will Mak wrote:
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>Hey all,
>
>I’m about to begin a LEED energy model for a 
>warehouse project that contains a very large 
>process load. It will be a major renovation 
>project. The building will be broken out as 
>50,000 sq ft office and 300,000 sq ft warehouse. 
>The anticipated HVAC systems on the project are 
>package rooftop units with DX cooling/gas 
>heating for both the office and warehouse areas. 
>The warehouse space requires cooling and heating.
>
>Two issues that come to light:
>
>1.       Large Process Load
>a.       Anticipated process load will consume 
>roughly 40-60% of the buildings annual energy 
>consumption. The Exceptional calculation method 
>has been considered. However, the process being 
>done at this facility is extraordinary and there 
>is not a “baseline” to compare savings off of.
>2.       Baseline System
>a.       Based on the size of the warehouse, 
>System 7 will be modeled. This system is a 
>packaged rooftop VAV with reheat with chilled 
>water and hot water boiler system. Based on 
>previous experience and preliminary modeling 
>results, the baseline system will be more energy 
>efficient than the package rooftop units with DX 
>cooling/gas heating. There’s been a suggestion 
>by our team to request a LEED Interpretation and 
>to possible change the baseline system to also 
>packaged rooftop units with DX cooling/gas 
>heating as that is typically designed for warehouse type facilities.
>
>Based on these two issues, I am having a hard 
>time foreseeing this project being able to hit 
>the minimum 5% savings requirement on major 
>renovations. I searched the LEED Interpretations 
>database but didn’t find one that dealt with a 
>project that had both these issues.
>
>Any suggestions?
>
>William Mak, LEED AP BD+C
>Mechanical Design Engineer
>
>EPSTEIN
>Architecture
>Interiors
>Engineering
>Construction
>
>600 West Fulton Street
>Chicago, Illinois 60661-1259
>
>D: (312) 429-8116
>F: (312) 429-8800
>E: <mailto:wmak at epsteinglobal.com>wmak at epsteinglobal.com
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>
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----------

Martin Roy, ing. PA LEED®, président
Martin Roy et associés
1805 chemin Oka,
Deux-Montagnes, Qc
J7R 1N3


Tel: 450-623-0340
Cell. 514-594-6352

www.mra.qc.ca






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