Dear TRNSYS users, I have some questions for you :
1°) I try to use the type 67 with the type 56a (Multizone Building).
But, it seems to me that I *_must_* used the type 34 in
complement.
[Output 11 of type 34 (Fraction of solar shading) ---> Input
of type 56a (created by me to used in Input of External Shading Factor)]
because the type 67 gives me 2 outputs (among 11) :
[Output 7 of type 67 (Fraction of beam visible on horizontal
for mask) ---> ?
[Output 9 of type 67 (Fraction of diffuse visible on
horizontal for mask) ---> ?
that I don't know used with the type 56a directly.
2°) I have read the files of the forum and I try the solution
proposed by Diego (Wed Oct 26 2005) to Amelie Mariller
who recommend to use two type 68 (one horizontal and one
vertical) with each type 34.
So, I have created two files in ".dat" :
the first with a slope of 0°
and the second with a slope of 90°.
The two files dividing the same others informations.
But I have the message : Error "Unable to read mask file,
please check file syntax and format." when I launch the calculs.
3°) So, I use only one type 68 with one type 34 :
[Output 3 of type 67 Shaded beam radiation for surface --->
Input 5 of type 34 (Beam radiation on surface)]
[Output 10 of type 67 Shaded diffuse radiation on horizontal
for mask ---> Input 4 of type 34 (Horizontal diffuse radiation)]
[Output 11 of type 67 Shaded total radiation on horizontal for
mask ---> Input 3 of type 34 (Total horizontal radiation)]
Parameter 1 of type 34 Upstream component mode = 1 and not 0
In more, I use two Equations :
a) Equation 1 :
Sky diffuse radiation on titled surface i (Output of
type 109)
+
Groung reflected diffuse radiation on titled surface i
(Output of type 109)
=
Diffuse radiation for opening (Input 6 of type 67)
b) Equation 2 :
Sky diffuse radiation on horizontal
+
Groung reflected diffuse radiation on horizontal
=
Diffuse radiation on horizontal (Input 4 of type 69b
and Input 4 of type 67)
After simulation, I have controlled the five View factor
(Outputs 6,7,8,9,10 of type 34) by Online plotter (type 65d)
and I'm surprise because the sum is not equal to 1 !
But if I change :
Parameter 1 of type 34 Upstream component mode = 0 and not 1
the sum is correct.
* Anyone knows what I should do? Thanks.*
**
*Fabien Morice.*
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