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<P><FONT FACE="Arial">I am attempting to model a VAV system with natural ventilation (Sherman-Grimsrud). According to the DOE2 Documentation (Vol. 2: Dictionary), the natural ventilation keywords beginning with "VENT" apply only to system TYPE = RESYS, RESYS2, PSZ and EVAP-COOL. I haven't been able to decipher why this might be, but there it is.</FONT></P>
<P><FONT FACE="Arial">Oddly, when I DO try and model the S-G method with a VAV system, my SS-B report shows some of the cooling load being covered by natural ventilation in the "Cooling by Zone Coils or Natural Ventilation" column and my overall energy consumption is decreased. So, at first glance the natural ventilation function appears to be working.</FONT></P>
<P><FONT FACE="Arial">I'm guessing this means one of two things:</FONT>
<BR><FONT FACE="Arial">a. Natural ventilation is not actually working correctly, eQuest is doing something screwy in the background and, therefore, by results are bogus.</FONT></P>
<P><FONT FACE="Arial">b. Natural ventilation IS working correctly and perhaps the documentation just hasn't caught up with the software (which is not uncommon).</FONT></P>
<P><FONT FACE="Arial">Any ideas?</FONT>
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<P><FONT SIZE=2 FACE="Arial">______________________</FONT>
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<P><FONT SIZE=2 FACE="Arial">Sarah Moore, PE</FONT>
<BR><FONT SIZE=2 FACE="Arial">Mechanical Engineer</FONT>
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<P><FONT SIZE=2 FACE="Arial">Arup</FONT>
<BR><FONT SIZE=2 FACE="Arial">403 Columbia, Suite #220, </FONT>
<BR><FONT SIZE=2 FACE="Arial">Seattle WA 98104 United States of America</FONT>
<BR><FONT SIZE=2 FACE="Arial">tel: 206 493 2246</FONT>
<BR><FONT SIZE=2 FACE="Arial">sarah.moore@arup.com</FONT>
<BR><A HREF="file://www.arup.com"><U><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">www.arup.com</FONT></U></A>
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