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You have a long way to go here, Pilllgrimmm................<br>
<br>
Orientation DOES matter in a commercial building because commercial
buildings almost always pay a peaking charge for electricity.<br>
It is not only how much energy but WHEN during the day cycle to get
the energy cost. Also you have ignored the conversion efficiency of
the active on-line<br>
Uninterruptable Power Supply in generating heat. A computing center
can easily draw 40+ kw peak power.<br>
You should sign up as an APCC UPS dealer and get Symetra qualified
- 3 day class on computing center power supply systems.... Try
Liebert brand also.<br>
<br>
Also you should have a DOAS for the computing center by itself, not
tied to the rest of the building. WHY ?? The computing center
waste <br>
heat tends to be at a a higher temperature so, depending on climate,
you could just blow off the heat at night !! -- <br>
Otherwise with the Compute waste heat mixed with the rest of the
building you could be stuck for rejecting it through chillers / heat
pump / etc.<br>
<br>
For high rise buildings >> some high rise buildings have mass
dampers located about 71% of the height of the building to reduce
wind.<br>
induced sway. If this mass damper is liquid and damped with internal
baffles you get to do both store heat and damp motions saving
structural<br>
dead load..........<br>
<br>
Turning down the radio to get better gas mileage in a car is a
catastrophic error, because you will not hear the traffic report
that would allow<br>
you to avoid the traffic accidents entirely, vastly improving energy
use and time use. An excellent example of the power of predictive
controls and<br>
operation configuration choices.......... "Don't just think
outside the box, think ahead of the box"<br>
<br>
This also means that I schedule all energy intensive activities on
the computers for late at night >>> NO peaking charge
<<<<<<br>
That means the daily backup - - I fire up the SAN / NAS about
midnight and kick it for a few hours. By the same token ( computer
science<br>
humor not intended..... oh well ) Feed back from building
simulations could make the computer guys change the speed of their
backup<br>
hardware saving massive Dollars.......<br>
<br>
Yoda.<br>
( The Green ears aren't so bad, I've been meaning to meet the flying
nun to discuss flying, <br>
but her re-runs are never on at the same time mine are..... ROFL
and you thought Purchased Snow was baaad !!!! )<br>
<br>
bye<br>
JRR<br>
<br>
On 6/29/2011 11:27 AM, John Eurek wrote:
<blockquote
cite="mid:1309361225.39633.YahooMailNeo@web122217.mail.ne1.yahoo.com"
type="cite">
<div style="color: rgb(0, 0, 0); background-color: rgb(255, 255,
255); font-family: times new roman,new york,times,serif;
font-size: 12pt;">
<div style="right: auto;"> </div>
<div style="right: auto;">I have my 8760 energy model complete.
What I want to make is a pie chart so I can tell the
customer. </div>
<div style="right: auto;">x% of the total energy is due to the
skin load</div>
<div style="right: auto;">x% of the total energy comes from
conditioning the outside air, </div>
<div style="right: auto;">x% of the total energy is due to the
servers.</div>
<div style="right: auto;"> </div>
<div style="right: auto;">Heck, even as I right this I'm not
exactly sure what I want. When I consider the energy due to
the servers, do I count just energy to run the servers or
the energy to run the servers and the energy to cool the
servers?</div>
<div style="right: auto;"> </div>
<div style="right: auto;">The method I plan to persue until
somebody has a better suggestion is to run a lot of models.</div>
<div style="right: auto;">1. I can remove all the people and
equipment, leaving only the skin load.</div>
<div style="right: auto;">2. I can set the outside air
requirements to zero cfm, this would help me find the energy
used to condition outside air</div>
<div style="right: auto;">3. I could removed all the servers,
this would help me find the energy used to run the servers and
cool the servers.</div>
<div style="right: auto;"> </div>
<div style="right: auto;">This seems to be the simplest, but
with all the interdependancies, I'm guessing that math may not
work out.</div>
<div style="right: auto;">(Example, thought experiment, didn't
actually try it.)</div>
<div style="right: auto;">Model A is<var id="yui-ie-cursor"></var>
a complete model.</div>
<div style="right: auto;">Model B is Model A minus all the walls
and roofs.</div>
<div style="right: auto;">Model C is Model A minus everthing but
the walls and roofs.</div>
<div style="right: auto;"> </div>
<div style="right: auto;">Would Model B + Model C = Model A (I
wouldn't think so becase fan curves and pump curves are not
linear.)</div>
<div style="right: auto;"> </div>
<div style="right: auto;">Has anyone done a report like this?
What has worked.</div>
<div style="right: auto;"> </div>
<div style="right: auto;">(One thing I want to get across to the
owner is that the servers are so large that it takes x%. And
that orientation doesn't matter because the skin load is x%.)</div>
<div style="right: auto;"> </div>
<div style="right: auto;">I did rotate the building and found
that there is only 0.5% difference because the internal loads
are so high. He insisted that the orientaion matters. I told
that if the building was emtpy it would matter, but at this
point it is like turning down the radio to get better gas
milage in a car. </div>
</div>
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