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RE: [EnergyPlus_Support] EMS - Exterior lighting control





I'm quite sure you need to include logic to account for winter summer local time shifts if your country has them. Remind me in Jan, I'll send over a script.

Am 21.12.2017 3:57 vorm. schrieb "'Jones, Christopher' christopher.r.jones@xxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>:
 

Jim,

Thanks for your reply. Astronomical Clock works well. I was wanting to take into account sky conditions, setting the operation based on diffuse solar level. Iâ??ve been using IES VE and I create a formula profile and a time switch profile.. If diffuse solar is less than threshold ? on, else ? off. .

 

 

 

Christopher R. Jones, P.Eng.

Technical Specialist

Sustainability & Energy

 

T +1 416-644-0252

 

2300 Yonge Street, Suite 2300

Toronto, ON M4P 1E4 Canada

wsp.com

 

 

Please consider the environment before printing...

 

 

From: EnergyPlus_Support@yahoogroups.com [mailto:EnergyPlus_Support@yahoogroups.com]
Sent: Monday, November 27, 2017 8:52 AM
To: EnergyPlus_Support@yahoogroups.com
Subject: Re: [EnergyPlus_Support] EMS - Exterior lighting control

 

 

Dear Chris,

There is probably no need to use EMS. Consider:

  1. You may assign a schedule to the exterior lights in that object (e.g., OFF 0000 - 0600)
  2. You may also define the "Control option" (with or without a schedule) as "Astronomical Clock". This turns on the lights at sunset and off at sunrise - latitude and seasonally adjusted!

Inline image 1

 

On Tue, Nov 21, 2017 at 12:21 PM, 'Jones, Christopher' christopher.r.jones@xxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@yahoogroups.com> wrote:

 

I am completely unfamiliar with EMS but it seems like it would be a valid way to control exterior lighting.

 

A typical control for exterior lighting is using a photocell but disabled between midnight and 6:00 am. The EMS Sensor could be Output:Variable,*,Site Diffuse Solar Radiation Rate per Area,hourly; !- Zone Average [W/m2].

 

But I am not sure of how to combine this with a clock schedule to disable the lights between midnight and 6:00 am?

 

 

 

 

Christopher R. Jones, P.Eng.

Technical Specialist

Sustainability & Energy

 

T +1 416-644-0252

 

2300 Yonge Street, Suite 2300

Toronto, ON M4P 1E4 Canada

wsp.com

 

 

Please consider the environment before printing...

 

 

 




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