<div>I referenced this information from the DOE2 dictionary volume 2. Maybe it will be helpful.</div>
<div> </div>
<div>Pasha </div>
<div> </div>
<div>
<div> </div>
<div><u>Zone Air flow key words: (from Vol2, pg 454)</u> </div></div>
<div><b><font size="3" face="Arial"><font size="3" face="Arial">
<p align="left">ASSIGNED-FLOW</p></font></font></b><font size="3" face="Garamond"><font size="3" face="Garamond">
<p align="left">Design supply air flow rate for the zone. Use either ASSIGNED-FLOW or FLOW/AREA or AIRCHANGES/</p>
<p align="left">HR. Note that FLOW/AREA or AIR-CHANGES/HR establish the minimum allowed design air</p>
<p align="left">flow; the actual design flow may be larger.</p></font></font><b><font size="3" face="Arial"><font size="3" face="Arial">
<p align="left">FLOW/AREA</p></font></font></b><font size="3" face="Garamond"><font size="3" face="Garamond">
<p align="left">The minimum design supply air flow rate to the zone per unit floor area. Use either ASSIGNED-FLOW or</p>
<p align="left">FLOW/AREA or AIR-CHANGES/HR Note that FLOW/AREA or AIR-CHANGES/HR establish the</p>
<p align="left">minimum allowed design air flow; the actual design flow may be larger.</p></font></font><b><font size="3" face="Arial"><font size="3" face="Arial">
<p align="left">AIR-CHANGES/HR</p></font></font></b><font size="3" face="Garamond"><font size="3" face="Garamond">
<p align="left">The minimum design supply air flow rate to the zone expressed as the number of times per hour that the flow rate</p>
<p align="left">replaces the total volume of air in the zone. Use either ASSIGNED-FLOW or FLOW/AREA or AIRCHANGES/</p>
<p align="left">HR Note that FLOW/AREA or AIR-CHANGES/HR establish the minimum allowed design air</p>
<p>flow; the actual design flow may be larger.</p></font></font></div>
<div> </div>
<div><u>Zone Air flow precedence: (from Vol2, pg 454)</u> <b><font size="4" face="Arial"><font size="4" face="Arial">
<p align="left">Airflow</p></font></font></b><font size="3" face="Garamond"><font size="3" face="Garamond">
<p align="left">The following keywords provide information on the flow of air into and out of each zone (supply air, exhaust air,</p>
<p align="left">and outside air).</p>
<p align="left">Generally, all air quantities should be input at sea level because the program makes a correction for altitude. If you</p>
<p align="left">want to input air flow rates that have already been corrected for altitude you should set SITEPARAMETERS:</p>
<p align="left">ALTITUDE = 0 in LOADS.</p>
<p align="left">There are four different methods of specifying a zone's supply air flow rate:</p></font></font><font lang="ZH-TW" size="2" face="SymbolMT"><font lang="ZH-TW" size="2" face="SymbolMT">
<p align="left"> </p></font></font><font size="3" face="Garamond"><font size="3" face="Garamond">Specify ASSIGNED-FLOW,</font></font><font lang="ZH-TW" size="2" face="SymbolMT"><font lang="ZH-TW" size="2" face="SymbolMT">
<p align="left"> </p></font></font><font size="3" face="Garamond"><font size="3" face="Garamond">Specify AIR-CHANGES/HR; the flow is the larger of the default or this value,</font></font><font lang="ZH-TW" size="2" face="SymbolMT"><font lang="ZH-TW" size="2" face="SymbolMT">
<p align="left"> </p></font></font><font size="3" face="Garamond"><font size="3" face="Garamond">Specify FLOW/AREA; the flow is the larger of the default or this value,</font></font><font lang="ZH-TW" size="2" face="SymbolMT"><font lang="ZH-TW" size="2" face="SymbolMT">
<p align="left"> </p></font></font><font size="3" face="Garamond"><font size="3" face="Garamond">Allow the program to calculate the air flow rate based on peak heating/cooling load and difference
<p align="left">between design supply air temperature and zone temperature. This calculation occurs when</p>
<p align="left">ASSIGNED-FLOW is not entered. If either AIR-CHANGES/HR or FLOW/AREA is specified, the</p>
<p>design flow is the larger of the default or the specified flow.</p></font></font></div>
<div> </div>
<div> </div>
<div> </div>
<div><u>Outside Air flow precendence: (from Vol 2, pg 458)</u> <b><i><font face="Arial">
<p align="left">Outside-Air Ventilation</p></font></i></b><font size="3" face="Garamond"><font size="3" face="Garamond">
<p align="left">The following keywords describe the outside air ventilation requirements of a zone. If specified, these keywords take</p>
<p>precedence over specifying outside air at the SYSTEM level.</p></font></font></div>
<div> </div>
<div> </div>
<div><u>Exhaust flow precendence: (from Vol 2, pg 459) </u><b><i><font face="Arial"></font></i></b></div>
<p align="left">Exhaust Airflow and Fans</p><font size="3" face="Garamond"><font size="3" face="Garamond">
<p align="left">This set of keywords defines exhaust at the zonal level. If zonal exhaust requires more outside air that specified for</p>
<p>ventilation, exhaust will take precedence.</p>
<p></p></font></font>
<div> </div>
<div><br><br></div>
<div class="gmail_quote">On Fri, Oct 8, 2010 at 9:06 AM, Paul Diglio <span dir="ltr"><<a href="mailto:paul.diglio@sbcglobal.net">paul.diglio@sbcglobal.net</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div>
<div style="FONT-FAMILY: times new roman,new york,times,serif; FONT-SIZE: 10pt">Carol:<br><br>I am having the same problem with airflow almost double from what I specified. I tried the altitude correction and that did not help.<br>
<br>Does the zone air flow and exhaust rate take preference over the fan flow parameters?<br><br>Thank you,<br><br>Paul Diglio<br>
<div><br></div>
<div style="FONT-FAMILY: times new roman,new york,times,serif; FONT-SIZE: 10pt"><br>
<div style="FONT-FAMILY: times new roman,new york,times,serif; FONT-SIZE: 12pt"><font size="2" face="Tahoma">
<hr size="1">
<b><span style="FONT-WEIGHT: bold">From:</span></b> Carol Gardner <<a href="mailto:cmg750@gmail.com" target="_blank">cmg750@gmail.com</a>><br><b><span style="FONT-WEIGHT: bold">To:</span></b> <a href="mailto:cstalberg@naturalintelligence.us" target="_blank">cstalberg@naturalintelligence.us</a><br>
<b><span style="FONT-WEIGHT: bold">Cc:</span></b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br><b><span style="FONT-WEIGHT: bold">Sent:</span></b> Fri, October 8, 2010 9:33:46 AM<br>
<b><span style="FONT-WEIGHT: bold">Subject:</span></b> Re: [Equest-users] design flow input vs. SV-A supply flow reporting<br></font>
<div>
<div></div>
<div class="h5"><br>Not stupid at all, If you have your altitude set to anything but 0 eQUEST will adjust your cfm accordingly. I always go in and set it manually to zero. I think it reads what it is off the weather file.<br>
<br>Carol<br><br>
<div class="gmail_quote">On Fri, Oct 8, 2010 at 6:54 AM, Christian Stalberg <span dir="ltr"><<a href="mailto:cstalberg@naturalintelligence.us" rel="nofollow" target="_blank">cstalberg@naturalintelligence.us</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0pt 0pt 0pt 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div>
<div dir="ltr" align="left"><span><font face="Arial"><font color="#0000ff"><font size="2">They say no question is a stupid question.</font></font></font></span></div>
<div dir="ltr" align="left"><span><font color="#0000ff" size="2" face="Arial"></font></span> </div>
<div dir="ltr" align="left"><span><font color="#0000ff" size="2" face="Arial">Why is my zone level supply flow cfm reported value in the SV-A report </font></span></div>
<div dir="ltr" align="left"><span><font color="#0000ff" size="2" face="Arial">higher than my overall design flow (ASSIGNED-FLOW) value? The </font></span></div>
<div dir="ltr" align="left"><span></span><span><font color="#0000ff" size="2" face="Arial">system </font></span><span><font color="#0000ff" size="2" face="Arial">sizing ratio is set at 1.00 (default).</font></span></div>
<div dir="ltr" align="left"><span><font color="#0000ff" size="2" face="Arial"></font></span> </div>
<div dir="ltr" align="left"><span><font color="#0000ff" size="2" face="Arial">Thanks in advance.</font></span></div></div><br>_______________________________________________<br>Equest-users mailing list<br><span><a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a></span><br>
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<br><br clear="all"><br>-- <br>Carol Gardner PE<br>
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