[TRNSYS-users] Type68 shading

Stefan de Kool s.dekool at chri.nl
Fri Feb 17 07:37:56 PST 2006


Dear all,

 

I have 2 horizontal windows, shaded by the same object, but from different
angles, so I use two Type68 shading masks (one with 6 and one with 7 azimuth
angles). I don't trust the results however because when I set one of the
obstructions to zeros (all betas = 0), the beam radiation is ok (equal to
solar radiation) but the diffuse radiation is less than the diffuse
radiation output from type16. As trnsys does not now the relative position
of the windows (as far as I can see), I do not see why this would happen.
Has anyone any suggestions? Below are the obstruction files I use (for
debugging I set one to all-zeros and the other to all 100, these are not the
actual values of the obstructions) 

 

obstructionA.dat:

-------------------------

1

0

0

33 33 40 90 155 155

100

100 

100 

100 

100 

100

 

 

obstructionB.dat:

------------------------

1

0

0

18 18 15 25 70 88 88

0 

0 

0 

0 

0 

0 

0

 

 

Met vriendelijke groeten,

Stefan de Kool

 

Cauberg-Huygen Raadgevende Ingenieurs

Lokatie Rotterdam

 



 

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