Solector™ Sun Shading Estimator for Single Blade SunShades

OVERVIEW
Solector™ is a simple to use estimating tool which can compare shading performance of two scenarios using Versoleil™ SunShades on a facade. This tool also provides an estimate of cooling energy and cost savings on an annual basis, using some broad assumptions. Energy savings are calculated based on solar heat gain avoided due to exterior shading of the facade.

Note that this tool provides rough estimates for initial design consideration only, and makes several simplifying assumptions; including (1) shading is estimated assuming that all solar gain is direct gain, and (2) all avoided solar gain translates into cooling energy savings. Please keep in mind that for sake of simplification no estimation is made of the peak load demand reduction, HVAC cooling fan cost savings or savings from reduction in overall size of HVAC equipment. Diffused light scenarios were analyzed, but made negligible difference in the annual shading performance for the most commonly expected applications, hence have not been included.

The goal of this tool is to ensure that architects and designers are aware of how various design inputs impact the shading performance of the sunshades. As far as energy savings estimation is concerned, Kawneer understands that it is a complex calculation involving a lot of different variables which can only be modeled by creating a comprehensive building model using an advanced software simulation tool (e.g. COMFEN and Ecotect). Solector™ is a tool which should be used very early on during the conceptual design phase to assess best shading parameters and estimated savings in energy.

COMFEN: Copyrighted Regents of the University of California
Ecotect® Analysis is a registered trademark of Autodesk, Inc.


    User has read the above and understands the underlying assumptions and generalizations.

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INSTRUCTIONS
There are three sections of inputs. In the "Building" section, you'll input some basic information about the building, location, glazing area to be shaded, and cost of providing cooling energy. If you have questions about any of these inputs, you can click on the input name to display help. The Climate Data input's default setting is "Clear Sky Condition", but city-specific climate data is also available which takes into account average available sunshine for that particular location.

The next two input sections are for the two shading scenarios you wish to compare. You can choose horizontal or vertical blades, whether (if you choose horizontal blades) the blades cover the entire window area or just part of if, and then details of the blade geometry. Again, you may click on inputs names to display help.

After you've entered the input data, click the "Calculate" button (two are provided for convenience), and the output data will be displayed. The outputs include a table with the shading, energy, and economic performance of the two scenarios, relative to unshaded windows, plus a summary of the inputs. There are also two charts, one for each scenario, with hourly shading throughout the year. You may then adjust any of the inputs and click the "Calculate" button again to recalculate the outputs.

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DEBUGGING
Date & Time
date:      time:     
 
Sun Angles
Solar Gain
Shading
BUILDING
°
(0.0 to 1.0)
$/kwh (typically 0.05 to 0.30)
SCENARIO #1
Shading System Parameters
Window Parameters
Blade Parameters
blade angle
blade size
blade angle
blade size
SCENARIO #2      
Shading System Parameters
Window Parameters
Blade Parameters
blade angle
blade size
blade angle
blade size
SHADING ANALYSIS
No Shading Scenario #1 Scenario #2
shading - - -
annual heat gain - - -
annual cooling cost - - -
design specs - - -
 
HOURLY SHADING CHARTS
 
SCENARIO #1
  MORNING   AFTERNOON  
  4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00  
Jan                                   Jan
Feb                                   Feb
Mar                                   Mar
Apr                                   Apr
May                                   May
Jun                                   Jun
Jul                                   Jul
Aug                                   Aug
Sep                                   Sep
Oct                                   Oct
Nov                                   Nov
Dec                                   Dec
  4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00  
  MORNING   AFTERNOON  
SCENARIO #2
  MORNING   AFTERNOON  
  4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00  
Jan                                   Jan
Feb                                   Feb
Mar                                   Mar
Apr                                   Apr
May                                   May
Jun                                   Jun
Jul                                   Jul
Aug                                   Aug
Sep                                   Sep
Oct                                   Oct
Nov                                   Nov
Dec                                   Dec
  4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00  
  MORNING   AFTERNOON  

 
 
 
 
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