Re: [TRNSYS-users] Type 539 IAM

[Jeff Thornton <thornton@tess-inc.com>]

Confirmed.  The formulation is IAM = 1 - b0 S - b1 S^2

The "more" button next to the parameter includes this information if you forget again.

Jeff

Sent from my iPad

On Mar 11, 2011, at 8:33 AM, Fred Betz <fbetz@aeieng.com> wrote:

All,

 

It’s been a little while since I have modeled a solar thermal array.

 

Parameters 10 and 11 of Type 539 Flat Plate collector correspond to the opposite values on the SRCC sheets.

 

For example the IAM on the Vitosol 100 panel is -0.100(S) and -0.215(S) for the IAM equation (S)=1/cos(theta)-1

 

Therefore the IAM inputs for parameters 10 and 11 are: 0.1 and 0.215.

 

Please confirm.

 

Fred

 

 

Fred Betz  PhD., LEED AP Sustainable Systems Analyst

AEI | AFFILIATED ENGINEERS, INC.   5802 Research Park Blvd. | Madison, WI  53719 P: 608.236.1175 | F: 608.238.2614   fbetz@aeieng.com  |  www.aeieng.com

 

 

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