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<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">Hello,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'"> <o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">I would kindly ask for information please.<o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">I am doing energy modeling for LEED EAc1 complinace in Energy Pro. It is a mixed use building (retail and residential). The HVAC system is as follows: <SPAN style="mso-spacerun: yes"> </SPAN>for RETAIL: <SPAN style="mso-spacerun: yes"> </SPAN>Unconditioned fresh air is supplied by roof mounted supply fan (SF) to the zone where<SPAN style="mso-spacerun: yes"> </SPAN>one portion is mixed with indoor air and <SPAN style="mso-spacerun: yes"> </SPAN>introduced to the indoor unit of split electrically driven heat pump. The other portion of the fresh air is supplied around kitchen hood serving as an air curtain and exhaust is by kitchen hoods. For residential - electrical baseboard heaters only + natural ventilation. <o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">Corridors are not conditioned but just ventilated (fresh air supply + exhaust for each corridor per floor) <o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">My concerns are as follows….<o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'"> <o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">1) How to model retail HVAC system? One room is one zone.<o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">My approach would be: <o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">@ system level/Split DX/Heating and Cooling capacity of outdoor unit/ Enter fan cfm and HP for outdoor unit as per cut sheet<o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">@ zone level/ zonal system/select variable refrigerant flow (just to account for heating and cooling capacity), enter heating and cooling capacity of indoor unit / fan tab enter cfm from <SPAN style="mso-spacerun: yes"> </SPAN>fan cut sheet (mixed air)<o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">@ room level/ exhaust fan tab/ enter cfm being exhausted (to account kitchen hoods)<o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'"><o:p> </o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">How to model SF? Perhaps to include additional zone and room, where internal loads are zero, room is unconditioned with cfm and HP entered @ zone level? <SPAN style="mso-spacerun: yes"> </SPAN><o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'"><o:p> </o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">2) How to model electrical baseboard heaters? One room is one zone.<o:p></o:p></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">My approach would be: </SPAN><SPAN style="COLOR: #1f497d"><FONT face=Calibri>@ system level , select any system without heating/cooling. At zone level, select e.g. VAV box and put Heating Output only. <o:p></o:p></FONT></SPAN></DIV>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt 0.25in" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'"><o:p> </o:p></SPAN></DIV></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<P style="LINE-HEIGHT: normal; MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">3) How to model ventilation for corridors?. One zone includes corridors on several levels<o:p></o:p></SPAN></DIV>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><SPAN style="LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">My approach would be: <o:p></o:p></SPAN></DIV>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><SPAN style="LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">@ system level: </SPAN><FONT size=3><FONT face=Calibri><SPAN style="COLOR: #1f497d">select any system without heating/cooling, no input for fan</SPAN><SPAN style="LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'"><o:p></o:p></SPAN></FONT></FONT></DIV>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><SPAN style="LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">@zone level/ select e.g. VAV box or diffuser/ enter air supply cfm <SPAN style="mso-spacerun: yes"> </SPAN>but without heating/cooling<o:p></o:p></SPAN></DIV>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><SPAN style="LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-font-family: 'Times New Roman'">@ room level/ exhaust fan tab/ enter cfm being exhausted </SPAN></DIV></DIV>
<DIV> </DIV>
<DIV> Thanks,Sasa</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>--- On <B>Wed, 3/7/12, Chris <I><floodyc@gmail.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR>From: Chris <floodyc@gmail.com><BR>Subject: Re: [Bldg-sim] EQUEST QUESTION<BR>To: "RobertWichert" <robert@wichert.org><BR>Cc: bldg-sim@lists.onebuilding.org<BR>Date: Wednesday, March 7, 2012, 9:55 PM<BR><BR>
<DIV id=yiv1050042706><FONT color=#000066><FONT face="comic sans ms,sans-serif">I've always found the default plug & lighting loads in eQuest to be on the high-side which has a significant affect on space temperatures and space conditioning energy.<BR></FONT></FONT><BR>
<DIV class=yiv1050042706gmail_quote>On Wed, Mar 7, 2012 at 12:27, RobertWichert <SPAN dir=ltr><<A href="http://us.mc394.mail.yahoo.com/mc/compose?to=robert@wichert.org" rel=nofollow target=_blank>robert@wichert.org</A>></SPAN> wrote:<BR>
<BLOCKQUOTE style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class=yiv1050042706gmail_quote>I am trying to learn E-Quest and I am trying to model a building that I have already modeled with Energy Pro. The gas usage from E-Quest is very very low compared to both actual and Energy Pro. It is a hot water reheat VAV system with a boiler and a water cooled condenser. The actual gas use is 17891 Therms, from the bills. Energy Pro predicts 17600 Therms. E-Quest predicts 580 Therms. This makes no sense to me, but it is clearly my error. I have gone over the inputs several times.<BR><BR>Is there anything that occurs to anybody that would make gas usage that far off?<BR><BR>Electrical from E-Quest is 453 MWh. Electrical from Energy Pro is 422 MWh. Electrical actual is 543 MWh. The building has lots of unaccounted-for process equipment, so I'm not so worried about being
low on electrical. It's not too far off. But the gas use is just way too low. Hot water is showing up at 3 Therms a month.<BR><BR><BR>This is the first model I have done with E-Quest, so I apologize for even asking. It's obviously something stupid that I have done.<BR><BR><BR>-- <BR>Robert Wichert P.Eng. LEED AP<BR><A rel=nofollow>+1 916 966 9060</A><BR>FAX <A rel=nofollow>+1 916 966 9068</A><BR><BR><BR><BR><BR><BR><BR><BR>==============================<U></U>=================<BR><BR>______________________________<U></U>_________________<BR>Bldg-sim mailing list<BR><A href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org" rel=nofollow target=_blank>http://lists.onebuilding.org/<U></U>listinfo.cgi/bldg-sim-<U></U>onebuilding.org</A><BR>To unsubscribe from this mailing list send a blank message to <A href="http://us.mc394.mail.yahoo.com/mc/compose?to=BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG" rel=nofollow
target=_blank>BLDG-SIM-UNSUBSCRIBE@<U></U>ONEBUILDING.ORG</A><BR></BLOCKQUOTE></DIV><BR><BR clear=all><BR>-- <BR>Chris Flood BSc (Eng)<BR>Senior Building Analyst<BR></DIV><BR>-----Inline Attachment Follows-----<BR><BR>
<DIV class=yiv1050042706plainMail>_______________________________________________<BR>Bldg-sim mailing list<BR><A href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org" rel=nofollow target=_blank>http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</A><BR>To unsubscribe from this mailing list send a blank message to <A href="http://us.mc394.mail.yahoo.com/mc/compose?to=BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG" rel=nofollow target=_blank>BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG</A><BR></DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE></DIV></TD></TR></TBODY></TABLE></DIV></TD></TR></TBODY></TABLE></DIV></td></tr></table>