<div dir="ltr">Hi Jim,<div><br></div><div>I have checked each IDF file and the inputs and schedules. It is literally the same model with only the U values for external walls changed. Could this possibly affect the equipment and lighting load?<br><br><div class="gmail_quote"><div dir="ltr">On Thu, 6 Sep 2018 at 01:38, Jim Dirkes <<a href="mailto:jim@buildingperformanceteam.com">jim@buildingperformanceteam.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div dir="ltr"><div style="font-size:large">All lighting and equipment values are within 1% of each other. That's probably close enough to be considered "the same", considering the complex E+ calculations and some rounding errors, but it is less close than seems reasonable. Have you compared inputs and schedules for each of those in each IDF?</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 5, 2018 at 8:56 AM, Kiran Ghosh via Bldg-sim <span dir="ltr"><<a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank">bldg-sim@lists.onebuilding.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<div><br></div><div>I am currently modelling a simple HVAC model on DesignBuilder. I need to run the simulation to obtain annual electricity consumption due to Cooling, Lighting and Interior Equipment for different construction materials. For some reason, while all the input is the same apart from the U value for the external wall, the electricity end-use for lighting and interior equipment changes as follows:</div><div><br></div><div><table border="0" cellpadding="0" cellspacing="0" width="203" style="border-collapse:collapse;width:152pt">
<colgroup><col width="64" span="2" style="width:48pt">
<col width="75" style="width:56pt">
</colgroup><tbody><tr height="20" style="height:15pt">
<td height="20" class="m_2988177563166632052m_-3019716534421661106gmail-xl63" width="64" style="height:15pt;width:48pt;text-align:center;vertical-align:middle;border:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">U value</td>
<td class="m_2988177563166632052m_-3019716534421661106gmail-xl63" width="64" style="border-left:none;width:48pt;text-align:center;vertical-align:middle;border-top:0.5pt solid windowtext;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">Lighting</td>
<td class="m_2988177563166632052m_-3019716534421661106gmail-xl63" width="75" style="border-left:none;width:56pt;text-align:center;vertical-align:middle;border-top:0.5pt solid windowtext;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">Equipment</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="height:15pt;border-top:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;border-left:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">2.04</td>
<td class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="border-top:none;border-left:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">496.38</td>
<td class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="border-top:none;border-left:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">885.89</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="height:15pt;border-top:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;border-left:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">2</td>
<td class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="border-top:none;border-left:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">494.72</td>
<td class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="border-top:none;border-left:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">880.84</td>
</tr>
<tr height="20" style="height:15pt">
<td height="20" class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="height:15pt;border-top:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;border-left:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">1.85</td>
<td class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="border-top:none;border-left:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">487.9</td>
<td class="m_2988177563166632052m_-3019716534421661106gmail-xl63" style="border-top:none;border-left:none;text-align:center;vertical-align:middle;border-right:0.5pt solid windowtext;border-bottom:0.5pt solid windowtext;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:11pt;font-family:Calibri,sans-serif;white-space:nowrap">860.3</td>
</tr>
</tbody></table></div><div><br></div><div><div>The LPD and Equipment Power Density remains the same with the same schedule, why is the annual electricity consumption changing? </div>--<br><div dir="ltr" class="m_2988177563166632052m_-3019716534421661106gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div style="font-size:small">Thanks and Regards</div><div style="font-size:small"><font color="#444444" face="tahoma, sans-serif" size="1">Kiran K Ghosh</font></div><div style="font-size:small"><font color="#444444" face="tahoma, sans-serif" size="1">+919582904515</font></div><div style="font-size:small"><font color="#444444" face="tahoma, sans-serif" size="1">+918152036434</font></div><div style="font-size:small"><font color="#444444" face="tahoma, sans-serif" size="1"><a href="mailto:kirankghosh31@gmail.com" target="_blank">kirankghosh31@gmail.com</a></font></div></div></div></div></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="m_2988177563166632052gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><p><span style="font-size:10pt;font-family:Arial,sans-serif;color:black;background-image:initial;background-repeat:initial"></span></p>James V Dirkes II, CEO / President<br>The Building Performance Team Inc.<br>1631 Acacia Dr, Grand Rapids, MI 49504</div><div dir="ltr"><br></div><div dir="ltr">(alphabet soup of efforts for greater understanding: PE, BEMP, BCxP, LEED AP)<br><br>Direct / Mobile: 616.450.8653<br><a href="mailto:jim@buildingperformanceteam.com" target="_blank">jim@buildingperformanceteam.com</a><br><br><a href="http://buildingperformanceteam.com" target="_blank">Website </a>l <a href="https://www.linkedin.com/pub/jim-dirkes/7/444/413" target="_blank">LinkedIn</a><p align="center" style="margin-bottom:0in;margin-bottom:.0001pt;text-align:center"><b><i><span style="font-size:14.0pt;line-height:115%;font-family:"MS Reference Sans Serif","sans-serif""> </span></i></b><span style="font-family:"MS Reference Sans Serif","sans-serif""></span></p><p style="vertical-align:middle">
</p><p style="margin-bottom:6.0pt;text-autospace:none"><span style="font-family:Calibri,sans-serif"><font size="4" color="#0000ff"></font></span></p><pre style="white-space:pre-wrap"><p style="margin-bottom:6.0pt;text-autospace:none"><b><font face="Calibri, sans-serif"><span style="font-size:13.3333px">Coffee conversation:</span></font></b></p><p style="margin-bottom:6.0pt;text-autospace:none"><span style="color:rgb(51,51,51);font-family:Calibri,sans-serif;font-size:10pt">Former gang member counseling a </span><span style="color:rgb(51,51,51);font-family:Calibri,sans-serif;font-size:10pt">friend about how to improve his public speaking: "You have to pepper your talk </span><span style="color:rgb(51,51,51);font-family:Calibri,sans-serif;font-size:10pt">with self-defecating humor. "</span></p><p style="margin-bottom:6.0pt;text-autospace:none"><span style="font-size:10pt;font-family:Calibri,sans-serif;color:rgb(51,51,51);background-image:initial;background-position:initial;background-repeat:initial">Friend: "No shit."</span></p></pre></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
</div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div style="font-size:small">Thanks and Regards</div><div style="font-size:small"><font color="#444444" face="tahoma, sans-serif" size="1">Kiran K Ghosh</font></div><div style="font-size:small"><font color="#444444" face="tahoma, sans-serif" size="1">+919582904515</font></div><div style="font-size:small"><font color="#444444" face="tahoma, sans-serif" size="1">+918152036434</font></div><div style="font-size:small"><font color="#444444" face="tahoma, sans-serif" size="1"><a href="mailto:kirankghosh31@gmail.com" target="_blank">kirankghosh31@gmail.com</a></font></div></div></div></div></div>