[BLDG-SIM] How to model Snowmelt System in eQUEST?

[Michael Tillou]

TMY2 is the type of weather file DOE2.2 uses for the simulation.  
 
You can access the data using the hourly report feature in equest.  The data
from the TMY2 file is a "Global" variable type.  Hourly reports show up in
the .sim output file after completing a simulation.  You can then use the
"Export Hourly Results" command under the File menu to send that data to a
.csv file.  
 
Mike 
  _____  

From: Caleb Rockenbaugh [mailto:crockenbaugh at yrgconsultants.com] 
Sent: Thursday, October 25, 2007 10:12 PM
To: michael.tillou at gmail.com
Subject: RE: [BLDG-SIM] How to model Snowmelt System in eQUEST?



thanks for the most-helpful addition to the conversation. 

 

caleb

 

 

From: BLDG-SIM at gard.com [mailto:] On Behalf Of Michael Tillou
Sent: Thursday, October 25, 2007 2:15 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] How to model Snowmelt System in eQUEST?

 

The TMY2 weather file has a flag for snowfall that you can export to excel
to help refine your schedule.

 

Mike 

 

  _____  

From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Mitchell Dec
Sent: Thursday, October 25, 2007 2:14 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] How to model Snowmelt System in eQUEST?

For projects I have worked on with snowmelt loads, I calculate the energy
consumed by multiplying the snowmelt load by the anticipated runtime hours
(based on bin data of OA Temperature for when the snowmelt system will be
used). The load can then be assigned as a direct load to the natural gas (or
electric) meter under the "Utility & Economics" tab in eQUEST. For
simplification, the load is assigned to a scheudle (I typically just run a
24/7/365 schedule and revise the input load so that I get the same total
annual energy consumed that was calculated for the snowmelt system) and then
assign the load/schedule to an end use category. For snow melt I use the
"Exterior Usage" end use category.

-----Original Message-----
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com]On Behalf Of Yoko
Matsuyama
Sent: Thursday, October 25, 2007 10:57 AM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] How to model Snowmelt System in eQUEST?

Ryan,

 

Yes, I am modeling for LEED. It might be simpler and easier if Calculating
the annual energy consumption for snowmelting system separately, and somehow
adding it to heating load from eQUEST. 

Did you know ASHRAE 90.1-2004 Appendix G mentions anything about
snowmelting? I haven't found yet...

 

 

Yoko M

 



 

On 10/25/07, Ryan Lacey <ryan at petersenengineering.com> wrote: 

Yoko 

Wow I am in the same exact boat as you are in.  I have a snow melt system
that I need to model and am not sure how to go about doing it.  Are you
energy  modeling for LEED? 

 

Ryan Lacey

Petersen Engineering, Inc.

PO Box 4774

6 Market Square

Portsmouth , NH 03801

Phone 603.436.4233

Fax 603.436.4294

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

ryan at petersenengineering.com

  _____  

From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Yoko
Matsuyama 
Sent: Thursday, October 25, 2007 1:05 PM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] How to model Snowmelt System in eQUEST?

 

Hi, everyone! 

Does anyone know how to model Snow-melt System with eQUEST?

The building I am modeling has radiant snowmelt systems at the basement
floor.

Please let me know if anyone has modeled before or has any idea.

 

Thank you

 

 

Yoko M 

Graduate Mechanical Engineer

 

 

 

 
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