[TRNSYS-users] Type 539 solar collector useful energy gain

[Jeff Thornton]

Richard, 

I just dragged out Type 539, connected it to a TMY-3
weather file and ran it for a month. The results from the model exactly
match the results from the Qu=Mdot*Cp*(Tout-Tin) equation to the 12th
decimal. Check to make sure you have the same specific heat in both,
have the correct connections etc. If you are still running into issues
then send the project to your distributor for a closer look. 

Jeff


---

Jeff Thornton 

_President - TESS LLC_ 

_22 N. Carroll Street,
Madison WI USA 53703_ 

_Office: (608) 274-2577 Fax: (608) 278-1475_


_www.tess-inc.com_ 

_E-Mail: thornton at tess-inc.com_ 

On 07/31/2012
8:33 am, Richard Thygesen wrote: 

> I have a question about type 539
solar collector. 
> 
> When I compare the output useful energy gain with
my own calculation it doesen't match. 
> 
> Why is that and shouldn't
the useful energy gain be the same as my calculation? 
> 
> I have used
the following q=massflow*Cp*(Tout-Tin) to calculate the useful energy.

> 
> Best regards 
> 
> RICHARD THYGESEN
 
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