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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hello Daniel, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>In either Wizard the footprint screen has
the choice for zones to be one per floor or perimeter/core. See attached
screens.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Walt<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Daniel Vilavedra
[mailto:Daniel.Vilavedra@pgigrup.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, January 27, 2010
9:18 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Walt Henry;
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Equest-users] <st1:place
w:st="on"><st1:PlaceName w:st="on">Throttling</st1:PlaceName> <st1:PlaceType
w:st="on">Range</st1:PlaceType></st1:place> and Pipe Insulation</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello walt,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Could you tell how did you change the footprint to one zone
per floor or send me a picture showing it? My model is also outside
of the throttling range and I'm trying to change it. I don't find where
the option is.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks a lot</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span lang=ES style='font-size:12.0pt'>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
lang=ES style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>De:</span></font></b><font
size=2 face=Tahoma><span lang=ES style='font-size:10.0pt;font-family:Tahoma'> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>En nombre de </span></b>Walt Henry<br>
<b><span style='font-weight:bold'>Enviado el:</span></b> martes, 26 de enero de
2010 22:19<br>
<b><span style='font-weight:bold'>Para:</span></b> Daniel Bersohn;
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Asunto:</span></b> Re: [Equest-users] Throttling
Range and Pipe Insulation</span></font><span lang=ES><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hello Daniel,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks for your responses to my requests.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>1)</span></font><font size=1 color=navy><span style='font-size:
7.0pt;color:navy'> </span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>I did find the zone that was under heated in the reports.
This building has three zones and the basement was the under heated zone.
I changed the footprint to one zone per floor in lieu of perimeter/core and
dropped the percentage from 34.1 to 0.9 so I am content with that since this is
an existing system the we can’t change. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-indent:.25in'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>2)
I found the location of the losses tab in the water loop and see how the UA can
be changed so that should solve the pipe insulation savings dilemma. I
can’t fully agree with you regarding the need to insulate steam
piping. Although the pipe does heat the zone it is in the process of
condensation in the piping degrades the quality of the steam reaching the
distributors, radiators in this case. This is a church and the piping to
be insulated is basically 400’ of 4”, 120’ of 2” and
100’ of 1”. The function of the piping is to deliver good
quality steam to the radiators and without insulation on long runs, even if
they are in a heated zone takes away steam quality from the zone above and the
radiators in the zone where the pipe is located.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks again!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Walt<o:p></o:p></span></font></p>
<div>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Daniel Bersohn
[mailto:Daniel.Bersohn@BuroHappold.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, January 21, 2010
6:09 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Walt Henry;
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Equest-users] <st1:place
w:st="on"><st1:PlaceName w:st="on">Throttling</st1:PlaceName> <st1:PlaceType
w:st="on">Range</st1:PlaceType></st1:place> and Pipe Insulation</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Helvetica 55 Roman"><span
style='font-size:10.0pt;font-family:"Helvetica 55 Roman";color:navy'>Walt,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Helvetica 55 Roman"><span
style='font-size:10.0pt;font-family:"Helvetica 55 Roman";color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><font size=2
color=navy face="Helvetica 55 Roman"><span style='font-size:10.0pt;font-family:
"Helvetica 55 Roman";color:navy'>1)</span></font><font size=1 color=navy><span
style='font-size:7.0pt;color:navy'> </span></font><font
size=2 color=navy face="Helvetica 55 Roman"><span style='font-size:10.0pt;
font-family:"Helvetica 55 Roman";color:navy'>This means that you have a zone
that’s not getting heating or cooling when it wants it. 34.1%
probably means there’s an issue with your system topology or your system
really has unmet load hours in real life. If you have one thermostat and
lots of rooms with different internal loads and exposures you’re
guaranteed to get a lot of unmet load hours. The plant having zero unmet
load hours means the plant is satisfying all the requests its getting from
equipment that serves zones. So the zones aren’t getting what they
want from AHUs, radiators, etc. but the plant is doing everything AHUs,
radiators etc. want it to.<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><font size=2
color=navy face="Helvetica 55 Roman"><span style='font-size:10.0pt;font-family:
"Helvetica 55 Roman";color:navy'>2)</span></font><font size=1 color=navy><span
style='font-size:7.0pt;color:navy'> </span></font><font
size=2 color=navy face="Helvetica 55 Roman"><span style='font-size:10.0pt;
font-family:"Helvetica 55 Roman";color:navy'>Any piping downstream of a steam
control valve in a two-pipe system in the same space served by the radiator
doesn’t need insulation because it’s acting as a radiator. In
a one-pipe system,0 if you have TRVs on the air vents, any pipe that only
serves one radiator and is in the same space as that radiator need not be
insulated since it serves as a radiator. If you don’t have TRVs on
your air vents in a one pipe system (or in place of the control valves on
two-pipe for that matter) the insulation probably doesn’t matter that
much since all the radiators deliver heat (and too much of it at that) at the
same time as all the uninsulated pipe. For the remaining pipe you’d
estimate the surface area of the piping to be insulated and multiply the U
factor of the insulation by the surface area of the pipe. Put that into
the hot water loop you’re using as an analog for your steam system in
detailed mode. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Helvetica 55 Roman"><span
style='font-size:10.0pt;font-family:"Helvetica 55 Roman";color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><font
size=2 color=black face="Helvetica 55 Roman"><span lang=EN-GB style='font-size:
10.0pt;font-family:"Helvetica 55 Roman";color:black;font-weight:bold'>Daniel
Bersohn, LEED AP<br>
</span></font></b><font size=2 color=black face="Helvetica 55 Roman"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Helvetica 55 Roman";color:black'>Mechanical
Engineer<br>
Buro Happold Consulting Engineers PC<br>
100 Broadway<br>
<st1:place w:st="on"><st1:City w:st="on">New York</st1:City>, <st1:State w:st="on">NY</st1:State>
<st1:PostalCode w:st="on">10005</st1:PostalCode> <st1:country-region w:st="on">USA</st1:country-region></st1:place><o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><font
size=2 color=black face="Helvetica 55 Roman"><span lang=EN-GB style='font-size:
10.0pt;font-family:"Helvetica 55 Roman";color:black'>+1 212 334 2025 Office<br>
+1 212 616 0391 Desk<br>
<br>
daniel.bersohn@burohappold.com<br>
</span></font><font size=2 color=navy face="Helvetica 55 Roman"><span
lang=EN-GB style='font-size:10.0pt;font-family:"Helvetica 55 Roman";color:navy'><a
href="http://www.burohappold.com/" title="http://www.burohappold.com/">www.burohappold.com</a></span></font><o:p></o:p></p>
<div style='margin-top:5.0pt;margin-bottom:5.0pt'>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Walt Henry
[mailto:WHenry@thielsch.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, January 21, 2010
8:55 AM<br>
<b><span style='font-weight:bold'>To:</span></b>
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Equest-users] <st1:place
w:st="on"><st1:PlaceName w:st="on">Throttling</st1:PlaceName> <st1:PlaceType
w:st="on">Range</st1:PlaceType></st1:place> and Pipe Insulation</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Good morning eQUEST users,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have two requests:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>1)</span></font><font
size=1><span style='font-size:7.0pt'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>What is the
definition of “throttling range”? I have always had 0 until
my last project which is a Police Station. We do mostly energy retrofits
and the existing boiler, 37 years old, has an input of 450 MBH. The total
HVAC load is 222.651 MBH per eQUEST. For the first time Report BEPU shows
my base case model to be 34.1% outside of the throttling range. What does
this mean? The % of hours any plant load is not satisfied is 0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>2)</span></font><font
size=1><span style='font-size:7.0pt'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I have a
church to model, starting this morning, which has no insulation on the steam
piping and we want to determine the savings by putting 1” of
fiberglass
on the pipes. Usually we would determine the savings in e-plus but is
there any way to model this in eQUEST? There are other measures and it
would be convenient to have everything in one report.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Walt Henry<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Energy Specialist<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>RISE Engineering<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>1341 Elmwood Ave.</span></font></st1:address></st1:Street><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Cranston</span></font></st1:City><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>, <st1:State
w:st="on">RI</st1:State> <st1:PostalCode w:st="on">02910</st1:PostalCode></span></font></st1:place><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:country-region w:st="on"><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>U.S.A.</span></font></st1:country-region></st1:place><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Phone: 401-784-3700 Ext. 119<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Fax:
401-784-3710 <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p align=center style='text-align:center'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>This message has been scanned by <a
href="http://www.mailcontroller.altohiway.com/">MailController</a>.<o:p></o:p></span></font></p>
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