[Equest-users] Fire Place

[Jon Bruneau]

Is this a wood fireplace?  If so heat output will vary based on the type of wood, moisture content, and amount of fuel in the fire box.  You'll also need to figure out where combustion air is coming from - the space or ducted from the outside.

Jon



Jon Bruneau, PE, LEED AP BD+C
Mechanical Engineer
F7 Engineering Group
400 10th Street NE, Suite B, Charlottesville, VA 22902
ph. 434.244.0023
fax 434.977.0023
www.F7engineers.com<http://www.f7engineers.com/>



From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Nick Caton
Sent: Tuesday, May 25, 2010 4:23 PM
To: William Lopez; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Fire Place

Hey William,


1.      Pull a cutsheet on the fireplace in question to get the input btu and heating btu incident on the space at full output.  If it's not a commercial gas/electric fireplace with a cutsheet, engineering-judgement the sucker based on something roughly equivalent.

2.      Define a schedule for the fireplace that matches your definition of  "consistently used during cold weather."  Consider a fractional schedule if it's not simply ON/OFF.

3.      In detailed mode:  Internal loads tab

4.      Spreadsheet view, select "Internal Energy Sources"

5.      Find the space with the fireplace

6.      Define a new load starting with your custom schedule.  Fill the fields in as appropriate - pretty self-explanatory at this point.  Sensible ratio would be your BTU incident on the space over the gross consumption.

7.      Carry around a smug grin coz' now you're the smartest energy modeler in the room!

Rock on,

~Nick


[cid:image001.jpg at 01CAFC28.8BA26E90]

NICK CATON, E.I.T.
PROJECT ENGINEER
25501 west valley parkway
olathe ks 66061
direct 913 344.0036
fax 913 345.0617
Check out our new web-site @ www.smithboucher.com

From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of William Lopez
Sent: Tuesday, May 25, 2010 2:48 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Fire Place

Hi everyone,
I am modeling a cabin log that is heated by electric baseboards and a fireplace that is consistently used during cold weather.
How can I integrate the fireplace load to the model, what would be the approach?

Thanks for the help.


William G. Lopez,   CEM
Energy Engineer

Buffalo Energy, Inc.
716-677-4899 P
716-677-4722 F
william at buffalo-energy.com


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