[Equest-users] eQuest - Campus Steam

[Kevin Kyte]

Daniel, that is curious that purchased steam would limit the number of EACr.1 points.  Is that in your theory or from something more concrete?  Or does it relate to DES modeling?  I had this issue with a cogeneration project that was inaccurately sized for the demand and resulted in (according to calcs) less efficient operation than the minimum required baseline.  Unfortunately the project was unable to meet the prerequisites for energy performance.

Kevin



From: R B [mailto:slv3sat at gmail.com]
Sent: Wednesday, March 14, 2012 10:57 AM
To: Daniel Knapp; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] eQuest - Campus Steam

You could just apply a steam meter.
On Wed, Mar 14, 2012 at 9:54 AM, Jim Paulino <jim.paulino at hesm.com<mailto:jim.paulino at hesm.com>> wrote:
Hi Daniel,

Thanks for the reply on the LEED requirements. You confirm an issue with having a campus system in that it can limit the potential energy points, but that is another topic...

What I'm not familiar with is how to change the "on-site" boilers that were modeled with a campus steam supply (I have been given a cost per lb of steam by the university), a steam to water heat exchanger and pumps. If anyone can walk me through this or point me in the right direction, I would appreciate that.

Thanks for any help,

Jim
________________________________
From: "Daniel Knapp" <danielk at arborus.ca<mailto:danielk at arborus.ca>>
To: "Jim Paulino" <jim.paulino at hesm.com<mailto:jim.paulino at hesm.com>>
Cc: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Sent: Wednesday, March 14, 2012 10:39:01 AM
Subject: Re: [Equest-users] eQuest - Campus Steam


Hi Jim,

Just FYI if this is a LEED model you should check out the District Energy Modelling Requirements from the USGBC (http://www.usgbc.org/ShowFile.aspx?DocumentID=7671).  By modelling as purchased steam you are limiting the number of EAc1 points available.

Cheers,
Dan

-
Daniel Knapp, PhD, LEED(r) AP O+M
danielk at arborus.ca<mailto:danielk at arborus.ca>

Arborus Consulting
Energy Strategies for the Built Environment
www.arborus.ca<http://www.arborus.ca>
76 Chamberlain Avenue
Ottawa, ON, K1S 1V9
Phone: (613) 234-7178 ext. 113<tel:%28613%29%20234-7178%20ext.%20113>
Fax: (613) 234-0740<tel:%28613%29%20234-0740>



On 2012-03-14, at 10:25 AM, Jim Paulino wrote:

I've inherited an energy model that was done over 3 years ago by someone no longer at our firm.
I'm an eQuest novice and have a question about a system that uses campus steam for heating.
The original model was set up with two gas fired boilers. (I see this in the Component Tree tab in the Water-Side HVAC section)
How do I tell eQuest that the heating is from a campus/purchased steam system so that it complies with ASHRAE 90.1-2004 item G3.1.1.1, Purchased Heat which requires the campus utility rate to be used?
Jim Paulino, P.E., CxA, LEED (tm) AP

Mechanical Engineer

jim.paulino at hesm.com<mailto:jim.paulino at hesm.com>

HESM&A, Inc.

www.hesm.com<http://www.hesm.com/>


MAIN:

(404) 881-5300<tel:%28404%29%20881-5300>

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(404) 881-0909<tel:%28404%29%20881-0909>

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(678) 365-2199<tel:%28678%29%20365-2199>

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(678) 628-2787<tel:%28678%29%20628-2787>


"Engineering the Built Environment"


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