[esp-r] ESP CFC control sensor definition work around

[Bakker, L.G. (Leo)]

Dear All,

 

Try to pick up ESP where I left some decade ago..

 

We try to compute the effect of different control strategies for a
venetian blind system using the CFC module.

 

We like to compare the following cases 

-          no shading 

-          shading applied if the effective total solar radiation (diff
and dir) > 200W/m2 

-          shading applied if the effective total solar radiation (diff
and dir) > 350W/m2 

-          manual controlled

 

It seems I am able to select as sensor: horizontal diffuse or direct
radiation (normal or total).

 

I am just wondering:

1-  if there is a way to control based on the total solar radiation on
the vertical CFC surface (as would be received by a sensor)?

2- if it would be possible to use a temporal file to control the shading


 

If this is not possible I will manipulate the weather file and define a
wind direction of 0 degrees for the cases the shading should be applied
and use that as a sensor.

I will then try to calculate the radiation on the CFC surface using a
small 1 by 1 by 1 box with an window with 100 % transmittance and
calculate how much solar radiation entered the box.

I wonder 

3- if this box approach will work and give me the effective total solar
radiation on the surface and 

4- if there is a simpler alternative for my "weather workaround
approach"

 

Thanks in advance,
 

Leo Bakker 

 

 

TNO Building and Geosciences 

 

Visiting address: Van Mourik Broekmanweg 6

 

PoBox 49

NL2600AA  Delft

The Netherlands

 

P          +31 (0)15 276 3305

F          +31 (0)15 276 3023

M          +31 (0)6 456 309 44

E          Leo.Bakker at TNO.nl

 
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