[TRNSYS-users] basic doubt in TYPE16+TYPE34+TYPE56

[Arie Kalkman]

Dear Raj,

 

Type 34 calculates the reduction in the amount of radiation based on your
definition of the overhang. 

Usually the window shading is the most important effect, so you define the
overhang/wingwall relative to the window.

 

If you now connect the Type 34 to your 3x4 m. wall including the 1x2.5 m.
window, you are right that also the wall receives the reduced amount of
radiation.

For thermally isolated walls, the effect on the building will be very small.

If you don't want this effect, or if you don't know whether it is a
significant effect in your case, you can do the following:

-          in Type 56, use 2 different label names for the orientation of
the window and the wall, e.g. south1 and south2

-          you now get to different sets of inputs to Type56. 

-          Connect the type 34 outputs to the Type56 window-related set of
inputs (incident radiation for south1, etc.)

-          Connect the original type 16 outputs to the wall-related set of
inputs (south2)

 

Kind regards,

 

Arie 

 

  _____  

Van: trnsys-users-bounces at engr.wisc.edu
[mailto:trnsys-users-bounces at engr.wisc.edu] Namens RAJ KUMAR
Verzonden: dinsdag 9 januari 2007 16:07
Aan: trnsys-users at engr.wisc.edu; Diego A. Arias
Onderwerp: [TRNSYS-users] basic doubt in TYPE16+TYPE34+TYPE56

 

Dear all,

    Basically my window size is 1 X 2.5m in south wall of my model room. I
have connected TYPE34 in between TYPE16 and TYPE 56a and defined the
parameters of overhang as follows

Receiver height -1m
Receiver width - 2.5m
overhang proj -  0.5m
overhang gap - 0.1m
OH left ext - 0.1m
OH right - 0.1m

south wall size is 3 x 4 m (height X width)

Now my question is , Does  TYPE56 take care of overhang for window specified
in TYPE56 by using program routines inside?. or how specifically does it
take for window?. or it assumes overhang for whole south wall?. I am getting
some variations in my simulation. esp. diffuse radiation.

  Otherwise how should I connect overhang?, if I want to do only for
specified window in TYPE56. This is actually extension of my earlier doubt. 

Kindly clarify my doubt, thanks in advance.

regards,
Rajkumar.S






S.Rajkumar,B.E.(Mech), M.Tech(Energy Engg.]

Research Scholar,

Centre for Energy Studies,

IIT, NewDelhi - 110016

Ph : 26586408 (lab),6907(Hostel)

MO: +919871100565

Homepage: http://www.geocities.com/srajk76

 

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