[Bldg-sim] Low heating consumption in Equest

[James Hansen]

I just ran it and got the following outputs.

 

1250 therms in January seems about right for a 70,000 square foot building with a 59 degree setback temperature and a boiler heating input ratio of 1.0 and wall/roof U-values approaching 0.03.  

 

By the way, your delta T on your hot water loop is only 10 degrees, which seems low unless you're doing this for a reason. 

 

 

 

 

 

 

GHT Limited
James Hansen, PE, LEED AP

Senior Associate

1010 N. Glebe Rd, Suite 200

Arlington, VA  22201-4749

703-338-5754 (Cell)

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

From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Gal, Amandine
Sent: Thursday, October 01, 2009 11:38 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Low heating consumption in Equest

 

Hello, 

 

I send few days ago a query concerning a model of a building with DDS and VAV system. 

 

I am sorry to insist but it is crucial for the LEED certification process of this building to manage good results of the Proposed building. 

 

I didn't have so much problem to model the Baseline building model. But concerning the Proposeb building model, it gives me a heating consumption so low that it is impossible that my model is right. 

 

So, I send you the files and I hope someone will find what happen. I check in the Bldg-sim]archives but DDS is not an usual system (because of its price) and I could'nt find any answer. 

 

I really need you help...

 

Thank you 

Regards

 

 

 

Amandine Gal 

Spécialiste en ingénierie

Division Transport, Infrastructures et Bâtiment

 

SNC-Lavalin inc.

8000 boul. Décarie, 3e étage 

Montréal (Québec)

Canada  H4P 2S4

Téléphone:  514-735-5651 poste 2346

Télécopieur:  514-737-7988

Courriel:  amandine.gal at snclavalin.com

www.snclavalin.com

 

 

________________________________

De : Gal, Amandine 
Envoyé : 24 septembre 2009 14:41
À : bldg-sim at lists.onebuilding.org
Objet : [Bldg-sim] DDS too low gas consumption in Equest

 

Hi, 

 

I am modelling a new building with a DDS system  for the peripheric zones and a VAV for the internal zones and I have a too low gas consumption for heating.

I tried almost everything but I didn't find what happen.

 

I send you the file. 

 

Thank you for your help.

 

Regards

 

Amandine Gal 

Spécialiste en ingénierie

Division Transport, Infrastructures et Bâtiment

 

SNC-Lavalin inc.

8000 boul. Décarie, 3e étage 

Montréal (Québec)

Canada  H4P 2S4

Téléphone:  514-735-5651 poste 2346

Télécopieur:  514-737-7988

Courriel:  amandine.gal at snclavalin.com

www.snclavalin.com

 


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