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Re: [EnergyPlus_Support] Photosensors





Does this depict behavior of a real physical sensor installed at some distance from the window?


On Monday, February 1, 2016 3:40 PM, "'Edward G. Lyon' eglyon@xxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:


 
You have almost answered your own question.  If the photosensor is active, it must read a light level to know if it needs to turn on the lights.  It reads the calculated daylight at the sensor and calculates the electric lighting to add to reach a set lighting level?.
 
Ned Lyon, P.E. (MA, WV)
Staff Consultant
SIMPSON GUMPERTZ & HEGER
781.907.9000 main
781.907.9350 direct 
617.285.2162 mobile 
781.907.9009 fax
www.sgh.com
 
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
Sent: Monday, February 01, 2016 3:26 PM
To: yahoogroups
Subject: [EnergyPlus_Support] Photosensors
 
 
When photosensors are activated in EnergyPlus, the output daylight illuminance in each zone is available. How does EnergyPlus separate daylight illuminance from electric illuminance? In a zone both electric lights and daylight are available a photosensor can tell the combined illuminance not separately daylight illuminance.




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Posted by: Fakeha Sehar <fakeha_s@xxxxxxxxx>


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The primary EnergyPlus web site is found at:
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The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/

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