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That would be a good place to start. When you get it running start
dialing in the cooling set point to achieve the cooling effect you
want with the ventilation. You can also model the system as a PSZ
air handler if eQuest doesn't respond with the data you expect by
doing it with exhaust fans. The energy consumption will be the
same, eQuest may offer you more options to do it this way. It
doesn't matter to eQuest what you call things. What is important is
you get it to do what you want to do in a thermally correct manner.
And you want the tools/data so you can identify what is happening in
the zone and manipulate them to get the effect you want. This
blower cabinet could be an exhaust fan, a PSZ AHU, a DOAS. A
exhaust fan set up may not give you unmet load hours. eQuest might
not autosize it for you. It has been a while since I have done this
so you will need to take this sketchy guidance and make it work for
your project. You have to manipulate both the building and eQuest
to accomplish what you want to model.<br>
Bruce<br>
<br>
<div class="moz-cite-prefix">On 11/16/2017 11:47 AM, Jing Hong
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:20171116164755.CTAX9331.toroondcmxzimta02-srv.bellnexxia.net@tordcvbicmrk02">
<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"
moz-do-not-send="true">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" moz-do-not-send="true">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"
moz-do-not-send="true" 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:%28416%29%20644-0252"
value="+14166440252"
target="_blank"
moz-do-not-send="true">+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"
moz-do-not-send="true">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" moz-do-not-send="true">
</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"
moz-do-not-send="true">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"
moz-do-not-send="true"><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"
moz-do-not-send="true">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"
moz-do-not-send="true">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 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>
</div>
</div>
</div>
</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>
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