[TRNSYS-users] VCC

[David BRADLEY via TRNSYS-users]

Boualamallah Ahmed Amine

La troisième sortie « useful energy gain » du Type1 (ou bien des Types 
539 et 538) serait le rendement utile du capteur. Si vous voulez 
l’efficacité du capteur, il suffit d’ajouter une équation qui divise le 
rendement par le produit d’énergie solaire tombant sur la surface du 
capteur et l’aire du capteur.

Soyez prudent cependant ; l’efficacité instantanée d’un capteur n’est 
pas définie quand il n’y a pas d’énergie solaire. Normalement, il vaut 
mieux intégré l’énergie solaire et le rendement utile pour chaque jour 
de la simulation.

Cordialement,

David


English:

 > How can I get the instantaneous energy yield from a solar collector 
in TRNSYS?

The third output of Type1 (or of Types 538 and 539) is the useful energy 
gain from a solar collector. If you want to know the collector's 
efficiency you need to implement an equation that divides the useful 
energy gain by the product of the solar radiation incident on the 
collector surface and the area of the collector.

Be a bit careful with instantaneous efficiency. At night, when there is 
no solar radiation the efficiency is not defined. Usually it is better 
to integrate the useful energy gain and the incident solar over at least 
a day, then divide those results.

kind regards,
  David



On 06/08/2017 06:14, BOUALAMALLAH AHMED AMINE via TRNSYS-users wrote:
> comment peut-t-on tracer le rendement instantané  d'un capteur solaire 
> a travers trnsys.svp.
>
>
> Le Mercredi 7 juin 2017 23h12, Jeff Thornton via TRNSYS-users 
> <trnsys-users at lists.onebuilding.org> a écrit :
>
>
> Type 921 is similar to many other TRNSYS components.  Drag it on to 
> the screen.  Fill out the parameters, connect the inputs and watch 
> it's behavior to make sure it's working how you intend it to.  The 
> electrical input power is calculated from the load met and the 
> performance at the given input conditions (read from a performance map).
> Jeff
> ---
> Jeff Thornton
> President - TESS LLC
> 22 N. Carroll Street, Madison WI USA 53703
> Office: (608) 274-2577  Fax: (608) 278-1475
> www.tess-inc.com
> E-Mail: thornton at tess-inc.com
> On 06/07/2017 3:46 pm, Abdul samad via TRNSYS-users wrote:
>> Dear sir,
>> how to use the air conditoner type 921 and how to calculate its 
>> electrical input power
>>
>> Sent from Yahoo Mail on Android 
>> <https://overview.mail.yahoo.com/mobile/?.src=Android>
>>
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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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