[TRNSYS-users] another question on type 536 linear parabolic concentrator

[Dani Pons]

Thank you. I believe that is the way to calculate the surface.

I have another question. i am working with the verison created in 1/1/97 and last modified in oct.2004 of type 536.
I have the concentrator connected to a weather data from a southern country and there is something I cant understand. I not only get lower temperatures than the ambience at night, but temperatures way below -273.15ºC, absolut cero. I checked out the "more" and it says that the range is (minus infinite,plus infinite). What is this supossed to mean? Am i doing something wrong? I tied to read the fortran code but I cant seem to fnid an explanation.

Here are my connections:

Type 109-TMY2 is connected to --> type 536 in the following matter:

Ambient temperature --> Ambient temperature
Beam radiation on tilted surface --> incident beam radiation

Best Regards, 
Daniel




________________________________
De: Jeff Thornton <thornton at tess-inc.com>
Para: Dani Pons <dani_pons_s at yahoo.es>; trnsys-users at cae.wisc.edu
Enviado: martes, 17 de marzo, 2009 18:53:19
Asunto: Re: [TRNSYS-users] type 536 linear parabolic concentrator

<I am using type 536 (linear parabolic concentrator) and I have a simple
question: How do I calculate the total surface of solar field? Is it
simply: "Number of collectors in series"x"Number of collectors in
parallel"x"Aperture area"? I ask because it always seems like I need an
awfully large surface if this is the equation I need.>

The Type 536 model has changed over the last year so I'm not sure which
version you are using.  However, the Studio proforma for the Type 536
model wil answer your question.  Using the "more" button next to the
aperture area parameter will state whether the model is expecting the
total array area or the area for one of the modules.  If indeed the model
you are using is looking for the area of one of the modules then the total
area needed is indeed the area * #Series * #Parallel.

Jeff



Jeff Thornton
President - TESS, LLC

2916 Marketplace Drive - Suite 104
Madison WI 53719 USA

Phone: 608-274-2577
Fax: 608-278-1475
E-mail: thornton at tess-inc.com
Web: www.tess-inc.com


      
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