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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The LS-A, -B, -C reports show the gains to the space(s) from envelope, occupants, lights, equipment, infiltration, etc. These are reported at the time of the greatest cumulative effect during the simulation. (W or BTU/hr)</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">As you mention, the SS series of reports shows the energy used to operate the systems, including equipment efficiencies, outside air, etc. Reheat also could add significantly to SS report energy compared to the space gains from the LS reports.</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">David</span></p>
<p class="MsoNormal"><u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"> </span></u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP</span><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";color:#244061">Grumman/Butkus Associates</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"></span></p>
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<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>xiaoyang shi<br>
<b>Sent:</b> Tuesday, April 05, 2011 4:11 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] question about SIM output data (building load and HVAC load)</span></p>
</div><p class="MsoNormal"> </p><p class="MsoNormal">Hi folks,<br><br>Here is a question.<br><br>From the SIM LS-F (Building Monthly load component), and calculate some simple steps by ourselves, we can know the yearly building heating load is 6 kwh/ft2<br>
<br>Meanwhile, From SS-D (building HVAC system load summary), we can know the yearly HVAC heating load is 25 kwh/ft2<br><br>There is a 19 kwh/ft2 difference between each other.<br><br>Could I ask what the reason is? (Note: I know this is the HVAC system efficiency, but could I know more detailed quantitive reasons? ) For example. the duct heat loss, the returning air heat loss. (Can we get these data from eQUEST output?, like the heat loss from the wall, window, roof, ground...)<br>
<br>Do you guys know any paper or documents about this question?<br><br>Thank you very much. <br><br>Sincerely yours,<br>Yang<br><br></p></div></body></html>