<br><font size=2 face="sans-serif">Make sure you run a full 8760 hour run.
I have found this to indicate more savings as I assume it uses a
wider range of temperatures.</font>
<br>
<br><font size=2 face="sans-serif">Art Veneklase, P.E., LEED AP<br>
URS<br>
3950 Sparks Dr. S.E.<br>
Grand Rapids, MI 49546<br>
Phone: 616-574-8452<br>
Cell: 616-581-9396<br>
Fax: 616-574-8542</font>
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</font>
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<br>
<br><font size=2><tt>trace-users-bounces@lists.onebuilding.org wrote on
12/15/2010 03:08:16 PM:<br>
<br>
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> Today's Topics:<br>
> <br>
> 1. Economic Comparison with ERV's (Jason Boehning)<br>
> 2. Re: Economic Comparison with ERV's (JRR)<br>
> <br>
> <br>
> ----------------------------------------------------------------------<br>
> <br>
> Message: 1<br>
> Date: Tue, 14 Dec 2010 16:43:31 -0600<br>
> From: Jason Boehning <Jason.Boehning@ricegardner.com><br>
> To: "trace-users@lists.onebuilding.org"<br>
> <trace-users@lists.onebuilding.org><br>
> Subject: [Trace-users] Economic Comparison with ERV's<br>
> Message-ID:<br>
> <457DDD1943557042B717A5F43B84C5F00FB954BDB5@ems08.ems-1.net><br>
> Content-Type: text/plain; charset="us-ascii"<br>
> <br>
> All,<br>
> <br>
> I am trying to use Trace to run some initial energy savings <br>
> calculations. I have a very large school campus, about 460,000 <br>
> square feet. There is over 100,000 cfm of outside air. Right now the<br>
> plant is coming on at 4am and running until about 6pm. I am trying
<br>
> to show that if we add some type of energy recovery system to the
<br>
> outside air, we can take the load down on the OA and control it <br>
> better. I am not getting very good numbers out of Trace. For <br>
> example, I just changed the OA schedule on the airflows tab from <br>
> 100% 4am - 6pm to 100% 8am - 3pm and I only got $5000 savings per
<br>
> year. I realize that there is still a lot of outside air intake in
<br>
> the hot parts of the day, but even adding an energy recovery wheel
<br>
> does not help as much as we think it should. Anyone else had similarproblems?<br>
> <br>
> Regards,<br>
> <br>
> Jason Boehning<br>
> Engineer in Training/Designer<br>
> [cid:image001.gif@01CB9BAE.0ADCD310]<br>
> 6161 Savoy, Suite 1212<br>
> Houston, Texas 77036<br>
> <br>
> v. 713.482.2322<br>
> f. 713.482.2314<br>
> e. Jason.Boehning@ricegardner.com<mailto:Jason.Boehning@ricegardner.com><br>
> <br>
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> <br>
> ------------------------------<br>
> <br>
> Message: 2<br>
> Date: Tue, 14 Dec 2010 23:40:18 -0500<br>
> From: JRR <energy.wwind@cox.net><br>
> To: Jason Boehning <Jason.Boehning@ricegardner.com><br>
> Cc: "trace-users@lists.onebuilding.org"<br>
> <trace-users@lists.onebuilding.org><br>
> Subject: Re: [Trace-users] Economic Comparison with ERV's<br>
> Message-ID: <4D0846B2.3000908@cox.net><br>
> Content-Type: text/plain; charset=windows-1252; format=flowed<br>
> <br>
> Winter time ? right ?<br>
> <br>
> Summer time the problem is you haven't removed any humidity - just
got <br>
> closer to the dew point - so you haven't reduced the latent load........<br>
> <br>
> <br>
> Jason Boehning wrote:<br>
> ><br>
> > All,<br>
> ><br>
> > I am trying to use Trace to run some initial energy savings <br>
> > calculations. I have a very large school campus, about 460,000
square <br>
> > feet. There is over 100,000 cfm of outside air. Right now the
plant is <br>
> > coming on at 4am and running until about 6pm. I am trying to
show that <br>
> > if we add some type of energy recovery system to the outside
air, we <br>
> > can take the load down on the OA and control it better. I am
not <br>
> > getting very good numbers out of Trace. For example, I just changed
<br>
> > the OA schedule on the airflows tab from 100% 4am ? 6pm to 100%
8am ? <br>
> > 3pm and I only got $5000 savings per year. I realize that there
is <br>
> > still a lot of outside air intake in the hot parts of the day,
but <br>
> > even adding an energy recovery wheel does not help as much as
we think <br>
> > it should. Anyone else had similar problems?<br>
> ><br>
> > Regards,<br>
> ><br>
> > Jason Boehning<br>
> ><br>
> > Engineer in Training/Designer<br>
> ><br>
> > Description: cid:image002.gif@01CB500A.C6673A20<br>
> ><br>
> > 6161 Savoy, Suite 1212<br>
> ><br>
> > Houston, Texas 77036<br>
> ><br>
> > v. 713.482.2322<br>
> ><br>
> > f. 713.482.2314<br>
> ><br>
> > e. Jason.Boehning@ricegardner.com <mailto:Jason.Boehning@ricegardner.com><br>
> ><br>
> > ------------------------------------------------------------------------<br>
> ><br>
> > _______________________________________________<br>
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> End of Trace-users Digest, Vol 29, Issue 5<br>
> ******************************************<br>
</tt></font>