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RE: [EnergyPlus_Support] Re: Calculated load different from

 component sizing summery
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Thank you

Sent from my Windows Phone
From: YuanLu Li
Sent: 9/15/2012 10:50 AM
To: EnergyPlus_Support
Subject: RE: [EnergyPlus_Support] Re: Calculated load different from
component sizing summery

 I usually respond to items I know.  I saw your whole page of EPlus
reference to the HTML, therefore I pointed out that "user" meant "User
spedified".  I did not know where the other number came from, and
therefore did not respond.  My PC is too slow to run your IDF with
weather file simulation. Now I know that  it is the result of the
IdealLoadsAirSystem I can simply say that this Maximum Total Cooling
Capacity has no relationship with the DesignDay sizing value, because
the former is from running the weather file data, and mayl be the same
value, if you use the extreme day weather file data for sizing..
There is no pupose in comparing two numbers which are known to be from
different conditions.  If you have used the 0.4% DesigndaySizing
object, the difference value would be smaller. As you have already
found "your explanations", you need not comment or agree with what I
said above..
 Dr. Y.L. Li
 To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: jcrossett@xxxxxxxxxxxxxxx
Date: Fri, 14 Sep 2012 13:54:22 -0700
Subject: Re: [EnergyPlus_Support] Re: Calculated load different from
component sizing summery


























      YI, sorry to have had your name wrong- the tables with the
highlighted values again are-Report: ComponentSizingSummary

ZoneHVAC:IdealLoadsAirSystem

Maximum Heating Air Flow Rate [m3/s]Maximum Cooling Air Flow Rate [m3/s]


Maximum Total Cooling Capacity [W]ZONE1AIR


0.0131460.0589071007.43


Report: HVACSizingSummary Zone Cooling


Calculated Design Load [W]


User Design Load [W]Calculated Design Air Flow [m3/s]User Design Air Flow [m3/s]


Design Day NameDate/Time Of PeakTemperature at Peak [C]Humidity Ratio
at Peak [kgWater/kgAir]BLOCK1:ZONE1


792.83792.830.0590.059


LOS ANGELES INTL ARPT ANN CLG 1% CONDNS DB=>MWB8/21 16:32:0026.280.00955



Jeremiah D. Crossett  | Senior Analyst  |  Phase Change Energy Solutions


120 E. Pritchard St.  | Asheboro, NC 27203  | Mobile 503-688-8951


www.phasechange.com















On Fri, Sep 14, 2012 at 1:49 PM, Jeremiah Crossett
<jcrossett@xxxxxxxxxxxxxxx> wrote:



Jason, Thanks for your input it was very helpful.
YI, thanks for your response- however  Apparently did not read the
post or look at the tables because the values you sent have nothing to
do with the discrepancy between the






Maximum total cooling capacity" and the "calculated design load"  The
values in question are highlighted in yellow and make up a rather
large discrepancy is not from a sizing multiplier.





The questionable values are Calculated Design Load [W]=
792.83Maximum Total Cooling Capacity [W]=
1007.43 Delta [W] = 214



































   		 	   		
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ent-Type"></head><body><div><div style=3D"font-family: Calibri,sans-serif; =
font-size: 11pt;">Thank you<br><br>Sent from my Windows Phone<br></div></di=
v><hr><span style=3D"font-family: Tahoma,sans-serif; font-size: 10pt; font-=
weight: bold;">From: </span><span style=3D"font-family: Tahoma,sans-serif; =
font-size: 10pt;">YuanLu Li</span><br><span style=3D"font-family: Tahoma,sa=
ns-serif; font-size: 10pt; font-weight: bold;">Sent: </span><span style=3D"=
font-family: Tahoma,sans-serif; font-size: 10pt;">9/15/2012 10:50 AM</span>=
<br><span style=3D"font-family: Tahoma,sans-serif; font-size: 10pt; font-we=
ight: bold;">To: </span><span style=3D"font-family: Tahoma,sans-serif; font=
-size: 10pt;">EnergyPlus_Support</span><br><span style=3D"font-family: Taho=
ma,sans-serif; font-size: 10pt; font-weight: bold;">Subject: </span><span s=
tyle=3D"font-family: Tahoma,sans-serif; font-size: 10pt;">RE: [EnergyPlus_S=
upport] Re: Calculated load different from component sizing summery</span><=
br><br></body></html>


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      <p>

<div dir=3D"ltr">
&nbsp;<BR>I usually respond to items I know.&nbsp; I saw your whole page of=
 EPlus reference to the HTML, therefore I pointed out that "user" meant "Us=
er spedified".&nbsp; I did not know where the other number came from, and t=
herefore did not respond.&nbsp; My PC is too slow to run your IDF with weat=
her file simulation.<BR>&nbsp;<BR>Now I know that &nbsp;it is the result of=
 the IdealLoadsAirSystem I can simply say that this Maximum Total Cooling C=
apacity has no relationship with the DesignDay sizing value, because the fo=
rmer is from running the weather file data, and mayl be the same value, if =
you use the extreme day weather file data for sizing..&nbsp; <BR>&nbsp;<BR>=
There is no pupose in comparing two numbers which are known to be from diff=
erent conditions.&nbsp; If you have used the 0.4% DesigndaySizing object, t=
he difference value&nbsp;would be smaller.<BR>&nbsp;<BR>As you have already=
 found "your explanations", you need not comment or agree with what I said =
above..<BR>&nbsp;<BR>&nbsp;&nbsp;<br><BR>&nbsp;Dr. Y.L. Li&nbsp;&nbsp; <BR>=
<br>&nbsp;<BR><div><div id=3D"SkyDrivePlaceholder"></div><hr id=3D"stopSpel=
ling">To: EnergyPlus_Support@xxxxxxxxxxxxxxx<br>From: jcrossett@phasechange=
.com<br>Date: Fri, 14 Sep 2012 13:54:22 -0700<br>Subject: Re: [EnergyPlus_S=
upport] Re: Calculated load different from component sizing summery<br><br>














<span>&nbsp;</span>


<div id=3D"ecxygrp-mlmsg">
  <div id=3D"ecxygrp-msg">


    <div id=3D"ecxygrp-text">
     =20
     =20
      <font color=3D"#003333"><font face=3D"verdana,sans-serif">YI, sorry t=
o have had your name wrong- the tables with the highlighted values again ar=
e-</font></font><div><span style=3D"font-family: &quot;Times New Roman&quot=
;;font-size: medium;">Report:</span><b style=3D"font-family: &quot;Times Ne=
w Roman&quot;;font-size: medium;">&nbsp;ComponentSizingSummary&nbsp;</b></d=
iv>

<div><b style=3D"font-family: &quot;Times New Roman&quot;;font-size: medium=
;">ZoneHVAC:IdealLoadsAirSystem</b></div>
<div><table style=3D"color: rgb(34, 34, 34);font-family: &quot;Times New Ro=
man&quot;;font-size: 13px;" border=3D"1" cellSpacing=3D"0" cellPadding=3D"4=
"><tbody><tr><td style=3D"font-family: arial,sans-serif;">
</td><td style=3D"font-family: arial,sans-serif;" align=3D"right">Maximum H=
eating Air Flow Rate [m3/s]</td><td style=3D"font-family: arial,sans-serif;=
" align=3D"right">Maximum Cooling Air Flow Rate [m3/s]</td><td style=3D"fon=
t-family: arial,sans-serif;" align=3D"right">


<span style=3D"background-color: rgb(255, 255, 0);">Maximum Total Cooling C=
apacity [W]</span></td></tr><tr><td style=3D"font-family: arial,sans-serif;=
" align=3D"right">ZONE1AIR</td><td style=3D"font-family: arial,sans-serif;"=
 align=3D"right">


0.013146</td><td style=3D"font-family: arial,sans-serif;" align=3D"right">0=
.058907</td><td style=3D"font-family: arial,sans-serif;" align=3D"right"><s=
pan style=3D"background-color: rgb(255, 255, 51);">1007.43</span></td>


</tr></tbody></table><span style=3D"font-family: &quot;Times New Roman&quot=
;;font-size: medium;">Report:</span><b style=3D"font-family: &quot;Times Ne=
w Roman&quot;;font-size: medium;">&nbsp;HVACSizingSummary</b>&nbsp;</div><d=
iv><b style=3D"font-family: &quot;Times New Roman&quot;;font-size: medium;"=
>Zone Cooling</b>&nbsp;<br>

<table style=3D"font-family: &quot;Times New Roman&quot;;" border=3D"1" cel=
lSpacing=3D"0" cellPadding=3D"4"><tbody><tr><td></td><td align=3D"right"><s=
pan style=3D"background-color: rgb(255, 255, 51);">Calculated Design Load [=
W</span>]</td>


<td align=3D"right"><span style=3D"background-color: rgb(255, 255, 51);">Us=
er Design Load [W]</span></td><td align=3D"right">Calculated Design Air Flo=
w [m3/s]</td><td align=3D"right">User Design Air Flow [m3/s]</td><td align=
=3D"right">


Design Day Name</td><td align=3D"right">Date/Time Of Peak</td><td align=3D"=
right">Temperature at Peak [C]</td><td align=3D"right">Humidity Ratio at Pe=
ak [kgWater/kgAir]</td></tr><tr><td align=3D"right">BLOCK1:ZONE1</td><td al=
ign=3D"right">


<span style=3D"background-color: rgb(255, 255, 51);">792.83</span></td><td =
align=3D"right"><span style=3D"background-color: rgb(255, 255, 51);">792.83=
</span></td><td align=3D"right">0.059</td><td align=3D"right">0.059</td><td=
 align=3D"right">


LOS ANGELES INTL ARPT ANN CLG 1% CONDNS DB=3D&gt;MWB</td><td align=3D"right=
">8/21 16:32:00</td><td align=3D"right">26.28</td><td align=3D"right">0.009=
55</td></tr></tbody></table><br><div><div><font color=3D"#336666"><i><br>
</i></font></div><div><b><span><font color=3D"#336666" size=3D"1"><b style=
=3D"font-family: Verdana,sans-serif;"><br></b></font></span></b></div><div>=
<div style=3D"text-align: center;"><b><span><font color=3D"#336666"><font s=
ize=3D"1"><b style=3D"font-family: Verdana,sans-serif;">Jeremiah D. Crosset=
t</b><span style=3D"font-family: Verdana,sans-serif;">&nbsp;&nbsp;</span><f=
ont face=3D"Verdana, sans-serif">| Senior&nbsp;</font><font face=3D"Verdana=
, sans-serif">Analyst</font><font face=3D"Verdana, sans-serif">&nbsp;&nbsp;=
| &nbsp;Phase Change Energy Solutions</font></font></font></span></b></div>


<b><div style=3D"text-align: center;"><b><span><font color=3D"#336666"><fon=
t size=3D"1"><font face=3D"Verdana, sans-serif">120 E. Pritchard St. &nbsp;=
| Asheboro, NC 27203 &nbsp;| Mobile&nbsp;<a target=3D"_blank">503-688-8951<=
/a></font></font></font></span></b></div>


<span><div style=3D"text-align: center;"><b style=3D"background-color: tran=
sparent;"><font color=3D"#336666"><b style=3D"font-family: Verdana,sans-ser=
if;font-size: 8pt;"><span><a href=3D"http://www.phasechange.com"; target=3D"=
_blank">www.phasechange.com</a>&nbsp;</span></b></font></b></div>


</span></b></div><div style=3D"text-align: center;"><font color=3D"#336666"=
>&nbsp;</font></div><div style=3D"text-align: center;">&nbsp;&nbsp;<img src=
=3D"http://i.imgur.com/Sldxf.jpg";></div><div><b><b style=3D"font-family: Ve=
rdana,sans-serif;"><font color=3D"#0000fe"><br>


</font></b></b></div><div><b style=3D"color: rgb(0, 0, 254);font-family: Ve=
rdana,sans-serif;font-size: 13px;"><b><span style=3D"font-size: 10pt;"><br>=
</span></b></b></div><div><font color=3D"#0000fe" face=3D"Verdana, sans-ser=
if"><span style=3D"font-weight: 800;"><br>


</span></font></div><br>
<br><br><div class=3D"ecxgmail_quote">On Fri, Sep 14, 2012 at 1:49 PM, Jere=
miah Crossett <span dir=3D"ltr">&lt;<a href=3D"mailto:jcrossett@phasechange=
.com">jcrossett@xxxxxxxxxxxxxxx</a>&gt;</span> wrote:<br><blockquote style=
=3D"border-left-color: rgb(204, 204, 204);border-left-width: 1px;border-lef=
t-style: solid;" class=3D"ecxgmail_quote">


<font color=3D"#003333" face=3D"verdana, sans-serif">Jason, Thanks for your=
 input it was very helpful.&nbsp;</font><div><font color=3D"#003333" face=
=3D"verdana, sans-serif"><br></font><div><font color=3D"#003333" face=3D"ve=
rdana, sans-serif">YI, thanks for your response- however &nbsp;</font><u><b=
><font color=3D"#003333" face=3D"verdana, sans-serif">Apparently&nbsp;did n=
ot read the post or look at the tables&nbsp;because&nbsp;the values you sen=
t have nothing to do with the discrepancy between the</font></b></u></div>





<div><div>
<div><font color=3D"#003333" face=3D"verdana, sans-serif"><b><u>Maximum tot=
al cooling capacity" and the "calculated design load" &nbsp;</u></b></font>=
<span style=3D"color: rgb(0, 51, 51);font-family: verdana,sans-serif;">The =
values in question are highlighted in yellow and make up a rather large&nbs=
p;discrepancy&nbsp;is not from a&nbsp;sizing&nbsp;multiplier.</span></div>




<div><span style=3D"color: rgb(0, 51, 51);font-family: verdana,sans-serif;"=
><br></span></div><div><font color=3D"#003333" face=3D"verdana, sans-serif"=
>The&nbsp;questionable&nbsp;values are&nbsp;</font></div><div><ul><li><font=
 color=3D"#003333" face=3D"verdana, sans-serif"><span style=3D"font-family:=
 arial;background-color: rgb(255, 255, 0);">Calculated Design Load [W]=3D</=
span></font>
<span style=3D"background-color: rgb(255, 255, 51);">792.83</span></li><li>=
<span style=3D"background-color: rgb(255, 255, 51);"><span style=3D"font-fa=
mily: arial,sans-serif;background-color: rgb(255, 255, 0);">Maximum Total C=
ooling Capacity [W]=3D&nbsp;</span></span>
<span style=3D"font-family: arial,sans-serif;background-color: rgb(255, 255=
, 0);">1007.43&nbsp;</span></li><li><span style=3D"font-family: arial,sans-=
serif;background-color: rgb(255, 255, 0);"><span style=3D"color: rgb(0, 51,=
 51);font-family: verdana,sans-serif;">Delta&nbsp;<span style=3D"color: rgb=
(0, 0, 0);font-family: arial,sans-serif;">[W]</span>&nbsp;=3D 214</span></s=
pan></li>




</ul></div>
</div><div><span style=3D"color: rgb(0, 51, 51);font-family: verdana,sans-s=
erif;"><br></span></div><div><span style=3D"color: rgb(0, 51, 51);font-fami=
ly: verdana,sans-serif;"><br>
</span></div><div><span style=3D"color: rgb(0, 51, 51);font-family: verdana=
,sans-serif;"><br></span></div><div><span style=3D"color: rgb(0, 51, 51);fo=
nt-family: verdana,sans-serif;"><br></span></div><div><span style=3D"color:=
 rgb(0, 51, 51);font-family: verdana,sans-serif;"><br>




</span></div><div><span style=3D"color: rgb(0, 51, 51);font-family: verdana=
,sans-serif;"><br></span></div><div><span style=3D"color: rgb(0, 51, 51);fo=
nt-family: verdana,sans-serif;"><br></span></div>
</div></div>
</blockquote></div><br></div></div>
<p><BR>

    </div>
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  </div> =09=09 =09   =09=09  </div>
</div></div></p>

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