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Nomikos,<br>
If you refer to the Type52 section of the mathematical description
manual (volume 05 in TRNSYS 16, volume 04 in TRNSYS 17), I believe
that the first figure (4.4.5.-1 in TRNSYS 17) will clarify. The "a"
dimension is the one perpendicular to the air flow path (parameter
14) while the "c" dimension is the one parallel (parameter 15).<br>
Best,<br>
David<br>
<br>
<br>
On 10/13/2011 08:25, NOM KARAS wrote:
<blockquote
cite="mid:CAHUc_o3UXNWZ_rQ7H8hyE2Z65uVB79MwyKuXECn6XJmHPm5xcg@mail.gmail.com"
type="cite">Dear trnsys users, <br>
sorry fot the other incomplete messages, I had problems with my
browser.<br>
<br>
Im a bit confused about which of <b>parameters 14</b> and <b>15</b>
of <b>type 52b cooling coil</b> is which. <br>
<br>
<b>Parameter 14</b> says "The center to center distance
between<b> rows of tubes</b> (perpendicular to air flow)", so what
I understand is that it refers to the dimension perpendicular to
air flow. For example if the cooling coil has <u>duct width
(parameter5) 1m</u> and <u>4 tubes feed (parameter 3)</u> , the
<u>parameter 14 will be 1/5=0.2m</u> if we assume that 4 tubes
form 5 equal intervals.<br>
<br>
<b>Parameter 15 </b>says "The distance between center
lines of <b>tube rows</b> (parallel to air flow)", so what I
understand is that likewise it refers to the dimesnion parallel to
flow. For example if the coil has <u>7 rows (parameter 2)</u> and
<u>depth of 1m</u>, the <u>parameter 15 will be </u>likewise the
previous example <u>1/8=0.125 m</u> , that is 8 equal intervals.<br>
<br>
what confuses me in first place is the word "rows" in both
explanations,<br>
<br>
Is this speculation right?<br>
<br>
Thank you in advance for your time,<br>
with regard Nomikos <br>
<br>
<br>
<br>
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<br>
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
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