Re: [TRNSYS-users] type 567 problem

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

<I would like to use type 567 (glazed building-integrated photovoltaic
system) to simulate a BIPV installation. In the mathematical
description, I found that some equations of energy balance (ex, the
energy balance on the cover surface and on the upper air channel
surface) are incorrect which could induce directly the wrong calculation
of the collector useful gain. Please find attached the detailed explication.>

As the author of that model I was concerned with what you found.  I went
back, found the original derivations and am happy to report that only the
documentation is incorrect.  The governing equations 567.1 and 567.15 are
indeed as you have noted.  We'll go back in and fix the documentation
immediately.  Thanks for your help in noting this issue.

Jeff


Jeff Thornton
President - TESS, LLC

22 North Carroll Street - Suite 370
Madison WI 53703 USA

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