[Equest-users] Instantaneous DHW heaters

[Bishop, Bill]

John,

 

When you changed the tank volume, did you also change the Tank UA? The
wizard default is based on the tank volume but I'm guessing it doesn't
change automatically for the EEM.

 

Regards,

Bill

 

 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of John
Aulbach
Sent: Tuesday, September 06, 2011 3:18 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Instantaneous DHW heaters

 

 

Hi Team:

 

Hope everyone had a nice holiday.

 

I am doing an office building in eQuest with 7 EEMs. I am currently in
the Detailed Edit mode.  I have an electric hot water heater with about
a 400 gallon tank. I set the tank gallons in the EEM to 2 (as eQuest
doesn't like Zero).  I ran the run and I get no savings.

 

I tried an test example in the Schematic Wizard using the Basic Office
bldg presented. I used a storage type system for the Base (with about a
75 gallon tank) and an Instantaneous system (which is not a choice in
the Detailed Edit mode) and a 2 gallon tank.  I got about a 10%
improvement in DHW energy.

 

Can anyone suggest what I might be missing in the large office mode?

 

John R. Aulbach, PE, CEM

Senior Energy Engineer

________________________________

Partner Energy

1990 E. Grand Avenue, El Segundo, CA 90245
W: 888-826-1216, X254| D: 310-765-7295 | F: 310-817-2745

www.ptrenergy.com <http://www.ptrenergy.com/>  | jaulbach at ptrenergy.com
<mailto:%7C%20jaulbach at ptrenergy.com> 

 

 

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