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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hrmmm... No straight answers, but few questions have I!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Humidifier isn’t running? With no outside air and
little/no exhaust … seems to me the moisture present at the beginning of
the simulation isn’t ever leaving the space – so why supply more
moisture? The dehumidifier is probably only removing the moisture from
the people also, so I expect it’s not major. You might get
different results if you specify “OA from system” with a corresponding
minimum quantity, if in the real world new, moisture-ridden/barren air is
introduced from other spaces.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Coil size off? If the simulated design loads do check out
(check reports), keep an eye on the specified/calculated CFM as well.
Note project altitude may mess with you in this regard if you’re
specifying. Also: 90kW*3413/12,000 = about 35.8 tons, so 36 is
probably the floor for what to expect. Also: 90kW is an important
number, but equally important is the schedule… is that running @ 100%
24/7 or for a single hour at a time? You’d end up with different
coil sizes I bet.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>And just for fun… I just found a <a
href="http://www.yodaspeak.co.uk/index.php">Yoda-speak translation tool</a>:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Coil size off, hmm? If check out (check reports), the
simulated design loads do, as well keep an eye on the specified/calculated
cfm. Specifying, note project altitude may mess with you in this regard
if you are. Also: 90kw*3413/12,000 = about 35.8 tons, so probably
the floor for what to expect, 36 is. Also: An important number,
90kw is, but the schedule, equally important is... For a single hour at a
time is that running at 100% 24/7 or, hmm? End up with different coil
sizes I bet, you would. <o:p></o:p></span></i></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>~Nick<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><img border=0 width=119 height=37 id="Picture_x0020_1"
src="cid:image001.jpg@01CC1965.2DCBBD20" alt="cid:489575314@22072009-0ABB"></span><b><span
style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E'><o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";
color:#2D4D5E'><o:p> </o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Stylus BT","sans-serif";
color:#2D4D5E'>NICK CATON, E.I.T.</span></b><b><span style='font-family:"Stylus BT","sans-serif";
color:#2D4D5E'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Calibri","sans-serif";
color:#CC9900'>PROJECT ENGINEER<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>Smith & Boucher Engineers</span><span style='font-size:7.5pt;
color:#CC9900'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>25501 west valley parkway<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>olathe ks 66061<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>direct 913 344.0036<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";
color:#2D4D5E'>fax 913 345.0617<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><a href="www.smithboucher.com"
title="blocked::www.smithboucher.com"><span style='font-size:10.0pt'>www.smithboucher.com</span></a></span><u><span
style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:blue'> </span></u><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Rob
Hudson<br>
<b>Sent:</b> Monday, May 23, 2011 3:21 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Humidifier<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>After more putzing around, i have notices that if you set
the OA to 0 then you cannot humidify, so i set it to 1 cfm, and now it works...<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<div>
<p class=MsoNormal style='margin-bottom:12.0pt'>Cooling coil is still bothering
me though.<o:p></o:p></p>
<div>
<p class=MsoNormal>On Mon, May 23, 2011 at 3:30 PM, Rob Hudson <<a
href="mailto:rdh4176@gmail.com">rdh4176@gmail.com</a>> wrote:<o:p></o:p></p>
<p class=MsoNormal>I have an Equipment Rack Room (ERR) that has a chilled
water/hot water single zone system, with de-humidification and humidification.
When i try to model this, i enter in the appropriate inputs into the
system and zone levels, and then for humidification i enter in my design
parameters, 60% and 35% with electric cansister humidifier type. <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>My problems begin now, when i run the model the humidifier
is never turning on throughout the year, and dehumidification seems to work
just fine. Also the program is currently sizing my cooling coil to a size
much larger than previously determined by hand. <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>More notes: the Rack load is 90kW with minimal other
loads (lights and people). 99% sensible heat ratio. Using this i
need about 30 tons of cooling, which translates to a coil that should be
slightly larger than that, due to de/humidification. my thermastat is set
to 72deg and design temperature is also 72 deg.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<div>
<p class=MsoNormal>This has been alluding me for about 2 hours, so any help is
appreciated.<br clear=all>
<br>
-- <br>
Rob Hudson<o:p></o:p></p>
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<p class=MsoNormal><br>
<br clear=all>
<br>
-- <br>
Rob Hudson<o:p></o:p></p>
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