RE: [EnergyPlus_Support] Query on Output of Daylight/ Glare

[YuanLu Li <yli006@xxxxxxxxxxx>]

Hi, Poh Kai
 
I do not know why you need a daily averaged pattern.  The patern changes due to the earth's orbit around the sun.  The intensity also depends on the cloud condition.
 
The idea of doing the day lighting simulation is to get the correct lighting at each desk position.
 
If you replace the daylight with electrical lighting to keep the illumination level constant, the reduction in electrical power is the saving.  There may be a daily averaged, monthly averaged and an anual averaged value in the report.
 
The need for day lighting simulation is because the sun is moving during the day, and has a seasonal variation as well. 
 
The map provides the distribution of the light in the room.  You can then move the table, the window position, or the shade to get the maximum benefit of the sun light.

The total sun light into the room is given by the beam intensity through each window.

 Dr. Li  

 

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To: energyplus_support@xxxxxxxxxxxxxxx
From: ng_khai@xxxxxxxxxxx
Date: Wed, 7 Jul 2010 11:03:13 +0800
Subject: RE: [EnergyPlus_Support] Query on Output of Daylight/ Glare

 

Hello All,
 
I am still unable to generate a 'typical day' profile even after reading the output:table documentation.  Is there anyone who knows how to do it?  I have tried for several weeks and would sincerely appreciate any help on this.
 
Thank you.
 
Best Regards,
Poh Khai
 

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To: EnergyPlus_Support@yahoogroups.com
From: RRaustad@FSEC.UCF.EDU
Date: Wed, 16 Jun 2010 08:17:44 -0400
Subject: Re: [EnergyPlus_Support] Query on Output of Daylight/ Glare

 

Review the Output:Table documentation.

Ng Poh Khai wrote:
>
> Dear All,
>
> I am currently able to generate hourly output of daylight illumance
> and glare of a reference point in a CSV file under the Output:Variable
> option. Is there a way in E+ for me to generate a summary of the
> hourly values so that I can obtain an average daily pattern or
> something like a 'typical' day pattern?
>
> The only way I can think of now is the average all the 365 values for
> a certain hour and den do it for the entire day which is very tedious.
>
> Hope some expert out day can help me with this. Thank you
>
> Cheers,
> Poh Khai
>

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