[TRNSYS-users] parameters of type 52b cooling coil

[David BRADLEY]

Nomikos,
   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).
Best,
  David


On 10/13/2011 08:25, NOM KARAS wrote:
> Dear trnsys users,
> sorry fot the other incomplete messages, I had problems with my browser.
>
>  Im a bit confused about which of *parameters 14* and *15* of *type 
> 52b cooling coil* is which.
>
> *Parameter 14* says "The center to center distance between*rows of 
> tubes* (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 _duct width (parameter5) 1m_ and _4 tubes feed 
> (parameter 3)_ , the _parameter 14 will be 1/5=0.2m_ if we assume that 
> 4 tubes form 5 equal intervals.
>
> *Parameter 15 *says "The distance between center lines of *tube rows* 
> (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 
> _7 rows (parameter 2)_ and _depth of 1m_, the _parameter 15 will be 
> _likewise the previous example _1/8=0.125 m_ , that is  8 equal intervals.
>
> what confuses me in first place is the word "rows" in both explanations,
>
> Is this speculation right?
>
> Thank you in advance for your time,
> with regard Nomikos
>
>
>
>
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-- 
***************************
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
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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