<div dir="ltr">Thanks Sharad, that was very helpful.<div><br></div><div><br></div><div>Best Regards,</div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><blockquote style="padding:0px;color:rgb(0,0,0);font-family:Calibri,sans-serif;font-size:16px;border:none;margin-top:0px!important;margin-bottom:0px!important"><b style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8000001907349px">Omar ElRawy, LEED AP BD+C</b><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8000001907349px">LEED Project Manager</div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8000001907349px">EA Sustainable Building Consultants</div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8000001907349px"><a href="http://www.ea-buildingconsultants.com/" target="_blank">http://www.ea-buildingconsultants.com</a></div></blockquote></div></div></div></div></div>
<br><div class="gmail_quote">On Tue, Jun 16, 2015 at 9:02 AM, Sharad Kumar <span dir="ltr"><<a href="mailto:sharadcapricious@gmail.com" target="_blank">sharadcapricious@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><div><font color="#0000ff">Hi Omar,</font></div><div><span style="color:rgb(0,0,255)"><br></span></div><div><span style="color:rgb(0,0,255)">Please find my responses in blue :</span></div><span class=""><div><font color="#0000ff"><br></font></div><div>Dear all,</div><div> I have a std VAV system with electric reheat, where we did add electric heating coils inside the ducts for some zones. </div><div>While modelling this case on eQuest; at system level; I did enter the "Heat Source" as " Not Installed", and the "Zone Heat Source" as "Electric". At Zone level, I did define a temperature schedule for heated zones. Zones with no coils were defined as zero "Maximum Heating Rate", and Undefined schedule.</div><div><br></div><div>What I did find in the SV-A report is that; zones with zero max heating rate still report Heating Capacity,</div><div> </div></span><div><font color="#0000ff">[SK] One can have the required or zero heating capacity in SV-A report for these zones by having input some higher value more than 140 degree Fahrenheit as Indoor design heating temperature.</font></div><div><span style="color:rgb(0,0,255)">The higher the heating design temperature there is no heating requirement in that zone.</span><br></div><div><font color="#0000ff">The heating capacity of any zone is derived by the temperature difference between design temperature and the outside temperature.</font></div><div><font color="#0000ff">If the design temperature is higher than the outside temperature than there is no requirement of heating.So the zone is not being heated.</font></div><span class=""><div><br></div><div>Another problem is that I can't yet define heating capacity limit to heated zones.</div></span><div><font color="#0000ff">[SK] Kindly check that the heating capacity is input at the system level and not at the zone level.For purpose maximum heating rate can be input at zone level. Heating capacity is a thing of system sizing.</font></div><span class=""><div><br></div><div>I tried defining electric baseboard heating instead, with equivalent capacities to my installed coils, but my savings were reported to be very exaggerated.</div></span><div><font color="#0000ff">[SK] Generally reheat is used for the case like of your purpose.Try using reheat and reheat delta T to control the unmet load hours and system sizing.</font></div><span class=""><div><br></div><div>Any help on an appropriate method to modelling this case would be appreciated.</div><div><span style="color:rgb(0,0,255)"><br></span></div></span><div><span style="color:rgb(0,0,255)">Thanks,</span></div><div><font color="#0000ff">Sharad.Kumar.</font></div><div><font color="#0000ff">Green Horizon Consulting LLP</font></div><div><font color="#0000ff">Gurgaon</font></div><div><font color="#0000ff">India. </font></div><div><font color="#0000ff"><br></font></div><div><font color="#0000ff"><a href="https://www.linkedin.com/profile/view?id=151208255&trk=nav_responsive_tab_profile" target="_blank">Linked-in</a><br></font></div></div><br></div></div>
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