<div dir="ltr">Hi Bruce,<div><br></div><div>Thanks for your instruction. Your suggestion makes a lot of sense. But I am wondering, if I make the ventilated zones as conditioned zones,eQuest will ask for Thermostat, etc. Should I make the Cooling set point very high and heating setppoint very low to avoid eQuest calculates loads? By your experience, will that affect my space cool or space heat number?</div><div>Thanks,</div><div>Jing</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Nov 16, 2017 at 8:52 AM, Bruce Easterbrook <span dir="ltr"><<a href="mailto:bruce5@bellnet.ca" target="_blank">bruce5@bellnet.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
It is what I do, at least initially. You can change it later. The
reason is that if it is an actual system then eQuest will generate
reams of data on it, you can do hourly reports to get more. You can
also play with it's settings and see the impact on the adjoining
building zones. A model is an investigation and a platform to
experiment to find the most energy efficient way to condition the
building and the cost implications so you can also also design an
economically efficient building.<br>
Ventilation is not very controlled and you have fans and motors
consuming power to move this air. So it is conditioned. The main
reason is, it is a power draw on the building. You need to quantify
it. The next question is, is it the best way to do it?<br>
Bruce Easterbrook P.Eng.<br>
Abode Engineering<span class=""><br>
<br>
<div class="m_-8918575233417697851moz-cite-prefix">On 11/15/2017 10:32 PM, Jing Hong
wrote:<br>
</div>
</span><blockquote type="cite">
<div><span class="">
<div dir="auto">Bruce, you mean in eQuest even if a zone needs
ventilation only, I still have to set the zone as conditioned?
Then I set the HVAC system as no heating or cooling. Is that
correct?</div>
<div dir="auto">Thanks,</div>
<div dir="auto">Jing</div>
<br>
</span><div class="gmail_quote"><span class="">
<div>On Wed, Nov 15, 2017 at 5:29 PM Bruce Easterbrook <<a href="mailto:bruce5@bellnet.ca" target="_blank">bruce5@bellnet.ca</a>>
wrote:<br>
</div>
</span><div><div class="h5"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF"> Jing, I think the
mistake is making the zone unconditioned. You are trying
to keep it under control with ventilation, therefore it is
conditioned, no active heating or cooling but it is
conditioned. You also need the temperature profile of
what is going on in that space so you can understand what
is happening. Buildings aren't always intuitive depending
what is going on and where it is located. You have a
fully walled and windowed zone I presume. For
unconditioned I would think a space like a parking garage
that is more than half open on 3 sides.<br>
You also have the impacts of the floor below and the floor
above which probably have larger boundary surfaces with
your second floor space than that space has exterior
wall. It may not be energy efficient to let the second
floor stay near exterior temperatures because of it's
impact on the floors above and below. By making it
conditioned and giving it to a system will give you the
information you need to evaluate whether you want to treat
it with just ventilation. Open up your heating and
cooling set points so there really isn't going to be a
call for heating and cooling and see what the temperatures
in the space do. Then start tinkering with the exhaust
cfm and zone cooling set point to see if this is practical
from an energy consumption point of view. Also watch what
is happening in the floor above and the floor below. You
can advantage of auto-sizing too.<br>
Bruce Easterbook P.Eng.<br>
Abode Engineering</div>
<div text="#000000" bgcolor="#FFFFFF"><br>
<br>
<div class="m_-8918575233417697851m_-5163425238655838452moz-cite-prefix">On
11/15/2017 2:33 PM, Jones, Christopher via Equest-users
wrote:<br>
</div>
</div>
<div text="#000000" bgcolor="#FFFFFF">
<blockquote type="cite">
<div class="m_-8918575233417697851m_-5163425238655838452WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">SUM
system type. The DOE2.2 manuals do not explain the
SUM system type very well. From the DOE2.1e
manual:</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">4.
System Descriptions</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">a.
Summation of LOADS to PLANT (SUM)</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">This
is actually not a secondary HVAC distribution
system, but rather a diagnostic tool, which is
used to 1) pass the hourly LOADS program output to
the PLANT program without simulating a system, 2)
adjust the constant zone temperatures specified in
LOADS, 3) simulate the thermostat schedules (but
not the equipment), and 4) tabulate energy
consumption by ZONE (or group of ZONEs). SUM is
not a miscellaneous SYSTEM-TYPE for UNCONDITIONED
zones.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">UNCONDITIONEO
ZONEs should be assigned to another SYSTEM.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><b><span style="font-size:6.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></b></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d" lang="EN-GB">Christopher R. Jones</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d" lang="EN-GB">, P.Eng.</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d" lang="EN-GB">Technical Specialist</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d" lang="EN-GB">Sustainability & Energy</span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><img id="m_-8918575233417697851m_-5163425238655838452Picture_x0020_15" height="37" width="78"></span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d"></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d">T
<a href="tel:(416)%20644-0252" value="+14166440252" target="_blank">+1 416-644-0252</a></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d"><a href="https://maps.google.com/?q=2300%0D+Yonge+Street,+Suite+2300%0D+Toronto,%0D+ON+M4P+1E4+Canada&entry=gmail&source=g" target="_blank">2300 Yonge Street, Suite
2300</a></span></p>
<a href="https://maps.google.com/?q=2300%0D+Yonge+Street,+Suite+2300%0D+Toronto,%0D+ON+M4P+1E4+Canada&entry=gmail&source=g" target="_blank"> </a>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d"><a href="https://maps.google.com/?q=2300%0D+Yonge+Street,+Suite+2300%0D+Toronto,%0D+ON+M4P+1E4+Canada&entry=gmail&source=g" target="_blank">Toronto, ON M4P 1E4
Canada</a></span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d" lang="EN-GB"><br>
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d"></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1f497d"><a href="http://wsp.com" target="_blank"><span style="color:#0563c1">wsp.com</span></a></span></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:blue" lang="EN-CA"><span style="text-decoration:none"> </span></span></u></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#7f7f7f"> </span></b></p>
<p class="MsoNormal" style="text-autospace:none"><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#6ea900">Please
consider the environment before printing...</span></i></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d" lang="EN-CA"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">
Equest-users [<a class="m_-8918575233417697851m_-5163425238655838452moz-txt-link-freetext" href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">mailto:equest-users-bounces@<wbr>lists.onebuilding.org</a>]
<b>On Behalf Of </b>Jing Hong via Equest-users<br>
<b>Sent:</b> Wednesday, November 15, 2017 2:13 PM<br>
<b>To:</b> <a class="m_-8918575233417697851m_-5163425238655838452moz-txt-link-abbreviated" href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.<wbr>onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] Zones with
different HVAC systems</span></p>
<p class="MsoNormal"> </p>
</div>
</blockquote>
</div>
<div text="#000000" bgcolor="#FFFFFF">
<blockquote type="cite">
<div class="m_-8918575233417697851m_-5163425238655838452WordSection1">
<div>
<p class="MsoNormal">Dear All,</p>
</div>
</div>
</blockquote>
</div>
<div text="#000000" bgcolor="#FFFFFF">
<blockquote type="cite">
<div class="m_-8918575233417697851m_-5163425238655838452WordSection1">
<div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">I have a building with more
than one kind HVAC system. I have the first
floor with VAV system, and the second floor only
has ventilation fans running. So I made all the
zones on Second Floor unconditioned, and choose
SUM as air-side HVAC system for second floor.
However, the Space Cool of no VAV for second
floor is even higher than that of the whole VAV,
which does not make sense to me. <br clear="all">
</p>
<div>
<p class="MsoNormal">Do you know how the eQuest
calculate Space Cool? Should The VAV energy
consumption be Space Cool+Vent. Fans shown on
the simulation output?</p>
</div>
<div>
<p class="MsoNormal">Thank you,</p>
</div>
<div>
<p class="MsoNormal">Jing</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<p class="MsoNormal">-- </p>
<div>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal">PhD Candidate,
LEED AP BD+C</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:9.5pt">School of
Architecture and Urban Planning</span></p>
</div>
<div>
<p class="MsoNormal">University of
Wisconsin-Milwaukee</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
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</div><div><div class="h5">
<div dir="ltr">-- <br>
</div>
<div class="m_-8918575233417697851gmail_signature" data-smartmail="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div dir="ltr">
<div>PhD Candidate, LEED AP BD+C</div>
<div><span style="font-size:12.8px"><br>
</span></div>
<div><span style="font-size:12.8px">School of
Architecture and Urban Planning</span></div>
<div>University of Wisconsin-Milwaukee</div>
<div><br>
</div>
</div>
</div>
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</div>
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</div></div></blockquote>
<br>
</div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div>PhD Candidate, LEED AP BD+C</div><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">School of Architecture and Urban Planning</span></div><div>University of Wisconsin-Milwaukee</div><div><br></div></div></div></div></div></div>
</div>