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<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>Section 4.4.1 – I don’t
feel there’s enough emphasis on extra zone equipment here. Most DOAS
systems will require something like fan coils (European fan coils!) or DX
terminal units to meet the full heating and cooling requirements.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>In Section 4.4.2:<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>Radiant system design and application
are still in development in the United States, while they are<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>more widely adopted in Europe. Unlike
VAV systems, there is no well established radiant system design.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>Building surfaces used in a radiant
system can be floors, ceilings, and walls, though the first two are most<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>commonly applied. *<b>And chilled
beams – maybe a bit complicated to model, especially active beams</b>*<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>Different radiant surfaces have
different heating and cooling capacities. A radiant<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>floor system has a larger heating
capacity than its cooling capacity because radiant floor heating has a<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>larger heat exchange coefficient
between the floor and the space than radiant floor cooling. According to<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>Babiak et al. (2009), a radiant floor
system normally has a maximum heating capacity of about 100 W/ft²<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>(1075 W/m</span><span
style='font-size:7.0pt;font-family:"TimesNewRomanPSMT","serif"'>2</span><span
style='font-size:11.0pt;font-family:"TimesNewRomanPSMT","serif"'>) and a
maximum cooling capacity of about 40 W/ ft² (430 W/m</span><span
style='font-size:7.0pt;font-family:"TimesNewRomanPSMT","serif"'>2</span><span
style='font-size:11.0pt;font-family:"TimesNewRomanPSMT","serif"'>). *<b>Er...,
how many watts per m2?</b>* <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>In areas exposed to direct sunlight,
the radiant cooling capacity can increase up to 100 W/ ft² (1075 W/m</span><span
style='font-size:7.0pt;font-family:"TimesNewRomanPSMT","serif"'>2</span><span
style='font-size:11.0pt;font-family:"TimesNewRomanPSMT","serif"'>). However,
floor carpets<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>may reduce the heating and cooling
capacity by as much as 50%. In contrast to a radiant floor system, a<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>radiant ceiling has a maximum heating
capacity of about 40 W/ ft² (430 W/m</span><span style='font-size:7.0pt;
font-family:"TimesNewRomanPSMT","serif"'>2</span><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>) and a maximum heating<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>capacity of about 100 W/ ft² (1075 W/m</span><span
style='font-size:7.0pt;font-family:"TimesNewRomanPSMT","serif"'>2</span><span
style='font-size:11.0pt;font-family:"TimesNewRomanPSMT","serif"'>) (Babiak et
al. 2009). *<b>a maximum _<i>heating</i>_ capacity of 430 W/m2 and a maximum _<i>heating</i>_
capacity of 1075 W/m2, which one shall I choose :$</b>*<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>*<b>suspended timber floors can be
heated but offer lower W/m2 than concrete/ screed systems</b>* <o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'>*<b>profiled concrete soffits can
offer further cooling advantages</b>*<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"TimesNewRomanPSMT","serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Bishop,
Bill<br>
<b>Sent:</b> 30 December 2009 15:57<br>
<b>To:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Bldg-sim] 50% Energy Savings Design for Medium Office Buildings
- free resource<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hi
All,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Just
an FYI on a recent publication (Sept. 09) available for free online:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>“Technical
Support Document: 50% Energy Savings Design Technology Packages for Medium
Office Buildings”<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><a
href="http://www.pnl.gov/main/publications/external/technical_reports/PNNL-18774.pdf">http://www.pnl.gov/main/publications/external/technical_reports/PNNL-18774.pdf</a><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
just glanced through it (138 page document – 1.2MB file) but I see a lot
of good stuff on efficient design and energy modeling.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Good
explanations on modeling baseline and proposed models using ASHRAE Standard
90.1, with specifics on radiant heating and cooling,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>DOAS,
VAV and many of the ECMs that would typically be considered for an energy-efficient
design.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>There
are lots of tips for EnergyPlus users, since that’s what was used for the
modeling, but much of the document applies to anyone modeling<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>ASHRAE
90.1 baselines and subsequent conservation measures.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Cheers,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Bill<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Franklin Gothic Medium","sans-serif";color:black'>William Bishop, EIT, LEED<sup>®</sup>
AP </span></b><b><span lang=EN-US style='font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";
color:#006600'>|</span></b><b><span lang=EN-US style='font-size:10.0pt;
font-family:"Franklin Gothic Medium","sans-serif";color:black'> </span></b><b><span
lang=EN-US style='font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";
color:black'>Pathfinder Engineers & Architects LLP</span></b><b><span
lang=EN-US style='font-size:10.0pt;font-family:"Franklin Gothic Medium","sans-serif";
color:black'><o:p></o:p></span></b></p>
<p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>Mechanical Engineer<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:5.0pt;font-family:"Arial","sans-serif";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif"'>134
South Fitzhugh Street</span><span lang=EN-US style='font-size:9.0pt'><br>
</span><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Rochester,
NY 14608</span><span lang=EN-US style='font-size:9.0pt'><br>
</span><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif"'>T:
(585) 325-6004 <span style='color:black'>Ext. 114</span></span><span
lang=EN-US style='font-size:9.0pt'><br>
</span><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif"'>F:
(585) 325-6005</span><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>wbishop@pathfinder-ea.com<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";
color:black'>www.pathfinder-ea.com</span><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:18.0pt;font-family:Webdings;
color:green'>P</span><span lang=EN-US style='color:green'> </span><span
lang=EN-US style='font-size:7.5pt;color:green'>Please strive to live
sustainably.</span><span lang=EN-US> </span><span lang=EN-US
style='color:green'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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