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RE: shape factors

Adriana,

View factors are calculated in a simplified way in Type 56. All internal surfaces are assumed to behave like black bodies for long-wave radiation, so view factors are computed using simple area ratios. These values are not outputted but you can recompute them easily.

If you need to include detailed view factors in your simulations, you can use the mono-zone Type 19.

Cheers,

Michaël Kummert

_________________________________________________________

Michaël Kummert

Solar Energy Laboratory - University of Wisconsin-Madison
1303 Engr Res Bldg, 1500 Engineering Drive
Madison, WI 53706

Tel: +1 (608) 263-1589
Fax: +1 (608) 262-8464
E-mail: kummert@sel.me.wisc.edu

SEL Web Site: http://sel.me.wisc.edu
TRNSYS Web Site: http://sel.me.wisc.edu/trnsys



> -----Original Message-----
> From: owner-trnsys@relay.doit.wisc.edu
> [mailto:owner-trnsys@relay.doit.wisc.edu] On Behalf Of
> Adriana Angelotti
> Sent: Monday, October 07, 2002 07:05
> To: trnsys@relay.doit.wisc.edu
> Subject: shape factors
>
>
> Hello,
>
> does anybody know if in the radiation exchange between
> internal surfaces in
> a zone Trnsys (Type 56) calculates shape factors?
> If yes, are shape factors available as output?
>
> Thank you
>
> Adriana Angelotti
>
>
> Adriana Angelotti
> PhD student
> eErg end-use Efficiency Research Group
> Politecnico di Milano, Dipartimento di Energetica
> Piazza Leonardo da Vinci 32
> 20133 Milano
> Italy
> ph +39.02.2399.3859
> fax +39.02.2399.3940
> 
>