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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="color:#1f497d">How about the DOE Reference buildings?</span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d">David</span></p><div><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><u><span style="color:black"> </span></u><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;color:black"> </span><span style="color:#1f497d"></span></p><p class="MsoNormal"><span style="color:#1f497d">David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP</span><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><b><span style="color:#244061">Grumman/Butkus Associates</span></b><span style="color:#1f497d"></span></p><p class="MsoNormal"><u><span style="color:black"> </span></u><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><span style="color:black"> </span><span style="color:#1f497d"></span></p></div><p class="MsoNormal"><span style="color:#1f497d"> </span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Nessle, Willis<br>
<b>Sent:</b> Wednesday, February 29, 2012 2:02 PM<br><b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> [Equest-users] how to make a cooling load profile?</span></p>
</div></div><p class="MsoNormal"> </p><p class="MsoNormal">Hi everybody,</p><p class="MsoNormal"> </p><p class="MsoNormal">I need to generate an 8760 hour cooling load profile for a generic building. The purpose is to capture the total load that a bldg’s AC equipment will need to meet. </p>
<p class="MsoNormal"> </p><p class="MsoNormal">I am NOT trying to simulate a specific building - just a generic “office”, or “school”, or “hospital”, etc. To that end I dashed off a model w/o entering a single user input – all SD Wizard defaults. Assumption being that the defaults are suitable for “typical buildings”. </p>
<p class="MsoNormal"> </p><p class="MsoNormal">‘----> Is this a reasonable assumption (using all defaults to represent “typical” bldg)? </p><p class="MsoNormal">‘----> Or are there some inputs – like system parameters - that I must define in order for the model to produce ball-park accuracy?</p>
<p class="MsoNormal">‘----> Which variables should I pull from the Hourly Blocks to make an 8760 hour report showing total cooling load equipment would need to meet?</p><p class="MsoNormal">*----> I noticed my “Building Loads” cooling load data (2 variables: sensible, latent) are much greater than “Building HVAC” cooling load data (1 variable: “coils+losses+gains”). “Building Loads” shows 472 kBtuh at the peak while “Building HVAC” shows just 296 kBtuh at same time. What is going on here?</p>
<p class="MsoNormal">*----> Finally, where do I find the OA Ventilation latent load? </p><p class="MsoNormal"> </p><p class="MsoNormal">My larger objective is to develop profiles for a fair size list of building types with the most common equipment combinations (location: Texas). </p>
<p class="MsoNormal"> </p><p class="MsoNormal">I believe the cooling load depends on the equipment type to a certain extent, since some loads are added by the system components, such as fan or pump energy. Therefore, in order to develop a cooling (and heating) profile for each building type/equipment type combination, I suspect I’ll need to ensure that the system (and/or plant) is defined appropriately. </p>
<p class="MsoNormal"> </p><p class="MsoNormal">‘----> Is that the right way to think about it?</p><p class="MsoNormal">‘----> Which additional variables would I need to pull for the load profile for a bldg. w/ a chilled water system?</p>
<p class="MsoNormal">‘----> Any suggestions?</p><p class="MsoNormal"> </p><p class="MsoNormal">(As you may have guessed, I’m familiar with eQUEST but have only limited experience.)</p><p class="MsoNormal"> </p><p class="MsoNormal">
Thanks for any advice,</p><p class="MsoNormal"> </p><p class="MsoNormal">Willis Nessle</p><p class="MsoNormal">Nexant, Inc.</p><p class="MsoNormal"> </p></div></body></html>