[Trace-users] Economic Comparison with ERV's

[JRR]

Winter time ? right ?

Summer time the problem is you haven't removed any humidity - just got 
closer to the dew point - so you haven't reduced the latent load........


Jason Boehning wrote:
>
> All,
>
> I am trying to use Trace to run some initial energy savings 
> calculations. I have a very large school campus, about 460,000 square 
> feet. There is over 100,000 cfm of outside air. Right now the plant is 
> coming on at 4am and running until about 6pm. I am trying to show that 
> if we add some type of energy recovery system to the outside air, we 
> can take the load down on the OA and control it better. I am not 
> getting very good numbers out of Trace. For example, I just changed 
> the OA schedule on the airflows tab from 100% 4am – 6pm to 100% 8am – 
> 3pm and I only got $5000 savings per year. I realize that there is 
> still a lot of outside air intake in the hot parts of the day, but 
> even adding an energy recovery wheel does not help as much as we think 
> it should. Anyone else had similar problems?
>
> Regards,
>
> Jason Boehning
>
> Engineer in Training/Designer
>
> Description: cid:image002.gif at 01CB500A.C6673A20
>
> 6161 Savoy, Suite 1212
>
> Houston, Texas 77036
>
> v. 713.482.2322
>
> f. 713.482.2314
>
> e. Jason.Boehning at ricegardner.com <mailto:Jason.Boehning at ricegardner.com>
>
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