<div>Hi, Jeremy,</div> <div> </div> <div>I would suggest you to simulate radiant cooling in eQUEST by using fan-coil system. You need to remove the fan energy use in the fan coil unit. Additional make-up system is needed for ventilation. The pump head needed to be adjust to mimic the pump energy use increase in radiant cooling.</div> <div> </div> <div>Regards,</div> <div> </div> <div>David Tian<BR><BR><B><I>Jeremy Plitt <jeremy.plitt@setty.com></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <META content="Microsoft Word 11 (filtered medium)" name=Generator><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:SmartTagType name="PostalCode" namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:SmartTagType><o:SmartTagType name="State" namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:SmartTagType><o:SmartTagType name="City"
namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:SmartTagType><o:SmartTagType name="place" namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:SmartTagType><o:SmartTagType name="Street" namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:SmartTagType><o:SmartTagType name="address" namespaceuri="urn:schemas-microsoft-com:office:smarttags"></o:SmartTagType> <STYLE> st1\:*{behavior:url(#default#ieooui) } </STYLE> <STYLE> <!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman";} a:link, span.MsoHyperlink {color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:blue; text-decoration:underline;} p.MsoAutoSig, li.MsoAutoSig, div.MsoAutoSig {margin:0in; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman";} p {mso-margin-top-alt:auto; margin-right:0in;
mso-margin-bottom-alt:auto; margin-left:0in; font-size:12.0pt; font-family:"Times New Roman";} pre {margin:0in; margin-bottom:.0001pt; font-size:10.0pt; font-family:"Courier New";} span.EmailStyle20 {mso-style-type:personal-reply; font-family:Arial; color:navy;} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in;} div.Section1 {page:Section1;} --> </STYLE> <DIV class=Section1> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">Hello everyone,<o:p></o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy"><o:p> </o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">I¡¯m attempting to model radiant cooling with eQuest 3-6. You cannot actually model it in eQuest (to my knowledge) so I¡¯m trying to
¡°trick¡± the program. <o:p></o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy"><o:p> </o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">First, I¡¯m simulating a VAV system with a chilled water loop for cooling and then obtain the cooling load on the chiller. Second, I simulate a VAV system with only outside air ventilation to meet code. There are exhaust fans in each room to replace the return fan which I removed. From the second simulation I obtain the cooling load on the chiller which is from the cooling of the outside air. Third, I subtract the first model¡¯s chiller cooling load by the second model¡¯s chiller cooling load to obtain what would be the cooling load taken up by radiant ceiling cooling panels. <o:p></o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman"
color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy"><o:p> </o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">In theory, the radiant cooling panels¡¯ load would be much larger than the outside air cooling load. However, my calculations are telling me that the outdoor air load is larger than the radiant cooling panels¡¯ load. Also, in the second simulation, I have reduced the amount of supply air by 80% because only outdoor air is being supplied to the building. Therefore, my fan power consumption should decrease by 80% as well. My results tell me however that the fans¡¯ energy consumption has only decreased by 10%.<o:p></o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy"><o:p> </o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN
style="FONT-SIZE: 12pt; COLOR: navy">Would anyone know of a reason why my results don¡¯t make any sense?? The majority of my inputs for the two simulations are the same except for where it is necessary to vary them. <o:p></o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy"><o:p> </o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">Thanks,<o:p></o:p></SPAN></FONT></div> <div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></div> <DIV> <div class=MsoAutoSig><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">Jeremy Plitt<o:p></o:p></SPAN></FONT></div> <div class=MsoAutoSig><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR:
navy">Mechanical Engineer<o:p></o:p></SPAN></FONT></div> <div class=MsoAutoSig><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy"><o:p> </o:p></SPAN></FONT></div> <div class=MsoAutoSig><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">Setty & Associates, Ltd.<o:p></o:p></SPAN></FONT></div> <div class=MsoAutoSig><?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:Street w:st="on"><st1:address w:st="on"><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">3040 Williams Drive Suite 600</SPAN></FONT></st1:address></st1:Street><FONT color=navy><SPAN style="COLOR: navy"><o:p></o:p></SPAN></FONT></div> <div class=MsoAutoSig><st1:place w:st="on"><st1:City w:st="on"><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">Fairfax</SPAN></FONT></st1:City><FONT color=navy><SPAN style="COLOR:
navy">, <st1:State w:st="on">VA</st1:State> <st1:PostalCode w:st="on">22031-4618</st1:PostalCode></SPAN></FONT></st1:place><FONT color=navy><SPAN style="COLOR: navy"><o:p></o:p></SPAN></FONT></div> <div class=MsoAutoSig><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">PH: 703-691-2115 Ext. 123<o:p></o:p></SPAN></FONT></div> <div class=MsoAutoSig><FONT face="Times New Roman" color=navy size=3><SPAN style="FONT-SIZE: 12pt; COLOR: navy">FX: 703-691-8084<o:p></o:p></SPAN></FONT></div></DIV></DIV><PRE> =====================================================You received this e-mail because you are subscribed to the BLDG-SIM@GARD.COM mailing list. To unsubscribe from this mailing list send a blank message to BLDG-SIM-UNSUBSCRIBE@GARD.COM </PRE></BLOCKQUOTE><BR><p>
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