[TRNSYS-users] collector slope output from Type15 when in tracking mode

[Jeff Thornton]

The outputs from the weather type will be the slope and azimuth of the
collector surface - not the axis. It makes sense that it reaches it's
minimum value around noon. In the morning it will be facing the horizon
(nearly vertical) and will track towards more flat as the sun rises in
the sky. A flat collector has a slope of zero. 

Jeff 

---
Jeff Thornton
President - TESS LLC
3 N. Pinckney Street, Suite 202, Madison WI USA 53703
Office: (608) 274-2577 Fax: (608) 278-1475
www.tess-inc.com
E-Mail: thornton at tess-inc.com

On 12/03/2019 8:58 am, -- Fed -- via TRNSYS-users wrote: 

> Hello everyone, 
> i was wondering if someone knows what the output for "slope of surface" refers to, in the weather type 15-6, when using tracking mode 3. 
> I have a collector array that rotates along a axis (the axis is horizontal (-> Parameter 8= slope of surface=0 ) and south oriented). 
> If the output "slope of surface" was the actual slope of the axis (as it is in input) it should always be 0, but this is not the case, as it varies during the way reaching a minimum around midday. 
> 
> Thanks in advance, 
> 
> Federico 
> 
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