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Five to ten times? Check your occupancy carefully. It sounds like
outside air to me. You either have no occupants on the second floor
or ten times the occupants on the first floor.<br>
<br>
<br>
<pre class="moz-signature" cols="72">Robert Wichert P.Eng. LEED AP
+1 916 966 9060
FAX +1 916 966 9068
===============================================
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<br>
On 2/26/2012 4:42 AM, James Hansen wrote:
<blockquote
cite="mid:CBDB673B-608B-4E70-8775-4920271A8F3D@ghtltd.com"
type="cite">
<div>It's almost surely your first floor slab. The default
configuration and U-value for these constructions are usually
very poor.<br>
<br>
-James</div>
<div><br>
On Feb 26, 2012, at 7:31 AM, "韩星" <<a moz-do-not-send="true"
href="mailto:foolishstar@163.com">foolishstar@163.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<div
style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">
<div
style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">Hi,
every body,
<div><br>
</div>
<div>I now have a difficult problem. I found that the
autosized design air flow in the first floor is much
larger than the second floor, about 5-10 times of the
second floor. I cannot figure out the reason, because
the indoor lighting, equipment power and the occupant
density are all the same for the two floors.</div>
<div>In my opinion, the second floor should have a higher
air-conditioning load than the first floor because it is
the building's top floor. But the result is just the
opposite.</div>
<div>I really want to know the reason and how I should
deal with it.</div>
<div>Thanks</div>
<div>Xing</div>
</div>
</div>
<br>
<br>
<span title="neteasefooter"><span id="netease_mail_footer"></span></span></div>
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<blockquote type="cite">
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