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Remon,<br>
The second number is the flow coefficient and the third number is
the flow exponent in the equation that relates the flow through the
opening to the pressure difference across the opening. I am not sure
what the first value is or how it is computed.<br>
Kind regards,<br>
David<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/15/2014 01:06, Remon Lapisa
wrote:<br>
</div>
<blockquote
cite="mid:1413353196.26067.YahooMailNeo@web133203.mail.ir2.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:verdana, helvetica, sans-serif;font-size:13px">
<div id="yiv0679567538">
<div>
<div
style="color:#000;background-color:#fff;font-family:verdana,
helvetica, sans-serif;font-size:13px;"><span
id="yiv0679567538yui_3_16_0_1_1413320737542_20743"
style="" class="yiv0679567538">Hi everyone,</span>
<div style=""
id="yiv0679567538yui_3_16_0_1_1413353079342_7507"
class="yiv0679567538">
<div style=""
id="yiv0679567538yui_3_16_0_1_1413353079342_7577"
class="yiv0679567538">
<div style="" class="yiv0679567538" id="yiv0679567538">
<div style="" class="yiv0679567538"
id="yiv0679567538yui_3_16_0_1_1413353079342_7576">
<div class="yiv0679567538"
id="yiv0679567538yui_3_16_0_1_1413353079342_7575"
style="color:#000;background-color:#fff;font-family:verdana,
helvetica, sans-serif;font-size:13px;">
<div style="" class="yiv0679567538"
id="yiv0679567538">
<div style="" class="yiv0679567538"
id="yiv0679567538yui_3_16_0_1_1413353079342_7574">
<div class="yiv0679567538"
id="yiv0679567538yui_3_16_0_1_1413353079342_7573"
style="color:#000;background-color:#fff;font-family:verdana,
helvetica, sans-serif;font-size:13px;">
<div
id="yiv0679567538yui_3_16_0_1_1413320737542_20744"
class="yiv0679567538"
style="color:rgb(0, 0,
0);font-size:13px;font-family:verdana,
helvetica,
sans-serif;background-color:transparent;font-style:normal;"><span
id="yiv0679567538yui_3_16_0_1_1413320737542_20745" style=""
class="yiv0679567538"><br style="">
</span></div>
<div
id="yiv0679567538yui_3_16_0_1_1413320737542_20746"
style="" class="yiv0679567538">In the
TRNSYS input file of Contam (***.air) we
will find some '<span
class="yiv0679567538"
style="font-style:italic;"><span
class="yiv0679567538"
style="font-weight:bold;">flow
elements</span></span>' datas,
consisting of 3 values numbers on each
line, like the example below (for 5 flow
elements):<br style=""
class="yiv0679567538">
<br style="" class="yiv0679567538">
....<br style="" class="yiv0679567538">
-999 wind pressure profiles:<br style=""
class="yiv0679567538">
1 2 5<br style="" class="yiv0679567538">
0 -1 -0.00625 6.94444e-005 0<br
style="" class="yiv0679567538">
90 -1 0.00625 6.94444e-005
-5.14403e-007<br style=""
class="yiv0679567538">
180 -0.25 0.00625 -6.94444e-005 0<br
style="" class="yiv0679567538">
270 -0.25 -0.00625 -6.94444e-005
5.14403e-007<br style=""
class="yiv0679567538">
360 -1 0 0 0<br style=""
class="yiv0679567538">
...etc<br style="" class="yiv0679567538">
<span class="yiv0679567538"
id="yiv0679567538yui_3_16_0_1_1413320737542_20748"
style="font-style:italic;">-999 <span
class="yiv0679567538"
id="yiv0679567538yui_3_16_0_1_1413320737542_20747"
style="font-weight:bold;">flow
elements:</span></span><br style=""
class="yiv0679567538">
1 <span
id="yiv0679567538yui_3_16_0_1_1413320737542_20749"
style="" class="yiv0679567538">0.0321663
0.94 0.5</span><br style=""
class="yiv0679567538">
2 0.090255 1.87 0.5<br style=""
class="yiv0679567538">
3 0.25528 3.74 0.5<br style=""
class="yiv0679567538">
4 0.723488 7.49 0.5<br style=""
class="yiv0679567538">
5 <span
id="yiv0679567538yui_3_16_0_1_1413320737542_20750"
class="yiv0679567538"
style="font-weight:bold;">0.0176262
1.08102 0.5</span><br style=""
class="yiv0679567538">
.... etc<br style=""
class="yiv0679567538">
<br style="" class="yiv0679567538">
<br style="" class="yiv0679567538">
In the example above, what values are
represented by the 3 bold numbers (<span
class="yiv0679567538"
style="font-weight:bold;"><span
class="yiv0679567538"
style="font-weight:bold;">0.0176262,
1.08102, 0.5</span>) </span><span
style="" class="yiv0679567538">??</span><br
style="" class="yiv0679567538">
<br style="" class="yiv0679567538">
How to calculate the value of <span
id="yiv0679567538yui_3_16_0_1_1413320737542_20753"
class="yiv0679567538"
style="font-weight:bold;"><span
id="yiv0679567538yui_3_16_0_1_1413320737542_20752"
class="yiv0679567538"
style="font-weight:bold;">0.0176262</span></span>
<span class="yiv0679567538"
style="font-weight:bold;"><span
class="yiv0679567538"
style="font-weight:bold;">?</span></span>
<span class="yiv0679567538"
style="font-weight:bold;"><span
class="yiv0679567538"
style="font-weight:bold;"></span></span><br
style="" class="yiv0679567538">
<br style="" class="yiv0679567538">
Thank for the help<br style=""
class="yiv0679567538">
<br style="" class="yiv0679567538">
remon</div>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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