[Equest-users] modeling of a printing facility

[Thomas Serra]

I agree that the process energy doesn't stop you from certifying the
building.  I think the concern is that an industrial facility's energy usage
would be dominated by the process energy.  Standard energy efficiency
measures such as lighting and space cooling would not produce the necessary
total building energy cost savings of 14% required for LEED v 2.2 buildings.
Process energy cannot be touched without exceptional calculation per LEED
and ASHRAE 90.1.  I also agree that you should model the building, and then
use reasonable assumptions for the process energy.

Unfortunately if this is a LEED project then it will be subject to LEED
review.  In the end ASHRAE is law, but some review teams misread or
misinterpret the intent of ASHRAE 90.1.  Some LEED guidance overrides the
90.1 guidelines so you need to consider both.

You should also review past CIRs regarding high process load buildings.

Thomas Serra
Project Manager
EMO Energy Solutions, LLC
3141 Fairview Park Drive, Suite 450
Falls Church, VA 22042
voice 703-205-0445 ex-113
fax 703-205-0449


-----Original Message-----
From: Gerard Hazel [mailto:ghazel at aol.com] 
Sent: Monday, February 15, 2010 8:18 AM
To: tserra at emoenergy.com; 'haissam mahmoud'
Cc: 'equest-users'
Subject: Re: [Equest-users] modeling of a printing facility

There is nothing re the process load that would stop you from certifying the
building. Appendix G tells you to estimate the process load and have it the
same in both the baseline and proposed so it doesn't matter what that load
is. It doesn't expect you to demonstrate energy efficiency for process loads
unless you think you can. 
Model the building as if the process load was not there and then add your
estimate to both baseline and proposed. Don't forget it's not LEED that is
making the rules here - it's ASHRAE Appendix G.



Gerard Hazel
Sustainable Systems LLC
 ...making buildings better...
973-538-5937
973-538-0219 fax
www.SustainSys.com
 

-----Original Message-----
From: tserra at emoenergy.com [mailto:tserra at emoenergy.com] 
Sent: Thursday, February 11, 2010 4:43 PM
To: haissam mahmoud
Cc: equest-users
Subject: Re: [Equest-users] modeling of a printing facility

For LEED projects all process energy must be included in both the baseline
and proposed building.  Yes, if the building is 86% process then you would
have to run the building without HVAC or lights to achieve LEED
certification.  This is an ongoing issue with process intensive buildings
such as industrial or data centers.  The LEED program was originally
designed for commercial offices so buildings of this type are difficult to
certify. You could possibly document the energy use of the equipment and
somehow demonstrate that the equipment being used is more efficient than
the typical industry standard.  However, this would take significant
documentation and knowledge of the process energy.

Also, the 3 story limit is for residential spaces.  So a two-story office
would still qualify under ASHRAE 90.1.

> Dear fellow questers
> Hope you are doing fine
> I am simulating  a facility plant dedicated for printing, and trying
> to get LEED certification for it
> The plant is only 3 stories height with storage area,offices  area and
> manufacturing area;
> First; I am not sure if ASHRAE 90.1 applies to this project,because it
> is only 3 stories height and it is industrial;if not, what standard
> shall be followed in this case in order to get the baseline?
> Second; about the process loads in the energy modeling issue: do we
> consider the printing machines as part of the process  loads?the
> printing machines are  running 24 hours/7 days with a  large power
> consumption, which  means that the LEED certification cannot be
> achieved!!
> Hope you can provide me with some guidance
> Thanks anyway
>
> Haissam Al Mahmoud,BME,LEED AP
> Mechanical Project Engineer
> Beirut,Lebanon
>
>