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<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri>Hello e-quest users,</FONT></FONT></P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></FONT> </P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri>When I run a simulation with the standard VAV w/ reheat and compare it to the 4-pipe fan coil system, I get a huge savings in heating energy. I would expect some savings due to reheat, but not as much I am getting (about 50% savings in heating energy). For the VAV, I am controlling the cooling coil so it is on WARMEST from 55 to 60F. The building is in climate zone 5A and heating energy makes up a significant portion of total energy consumption. </FONT></FONT></P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3 face=Calibri></FONT><FONT size=3><FONT face=Calibri><o:p></o:p></FONT></FONT> </P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri>Has anyone seen such a high savings in heating energy when switching from the VAV w/reheat to the 4-pipe fan coils? </FONT></FONT></P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri><o:p></o:p></FONT></FONT> </P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri>I also run a quick test for a simplified building geometry (similar building size and occupancy type as my project) using WIZARD and found that, if I use version 3.64 e-quest, switching from the VAV w/reheat to the 4-pipe fan coil does NOT give me much savings in heating energy. <SPAN style="mso-spacerun: yes"> </SPAN>However, if I run the same simplified model using 3.61 e-quest (WIZARD), I get very high savings in heating energy, similar to what I have in my project. <o:p></o:p></FONT></FONT></P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri>Can anyone shed some light on what might be happening here?<o:p></o:p></FONT></FONT></P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri></FONT></FONT> </P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri></FONT></FONT> </P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri>If anybody has some input, it would be appreciated.</FONT></FONT></P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri><o:p></o:p></FONT></FONT> </P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri>Regards,</FONT></FONT></P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri></FONT></FONT> </P>
<P style="MARGIN: 0in 0in 10pt" class=MsoNormal><FONT size=3><FONT face=Calibri>Ana Davidovic/Mechanical Engineer<o:p></o:p></FONT></FONT></P> </div></body>
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