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cvenkatesan
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Join Date: Feb 2008
Posts: 2

lux calculation

02/10/2008 5:44 AM

how to calculate the lux for a specific room dimension?
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Electroman
Guru
United Kingdom - Member - Olde Member!! Engineering Fields - Instrumentation Engineering - New Member

Join Date: Jul 2006
Location: Dunstable, England
Posts: 2821
Good Answers: 45
#1

Re: lux calculation

02/10/2008 7:53 AM

A lot more information is required to provide any sort of answer...

what type lighting is being used, what type of work is done in that room.... You don't even say what you need the answer for???

John.

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CSM Engineer
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Join Date: Sep 2007
Location: Reno, NV (USA)
Posts: 608
Good Answers: 66
#2

Re: lux calculation

02/10/2008 9:52 AM

Take a look at this thread:

http://cr4.globalspec.com/thread/13434/proper-wattage

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superman27532003
Member

Join Date: Jan 2008
Posts: 5
#3

Re: lux calculation

02/11/2008 2:20 AM

By ZONAL CAVITY or AVERAGE LUMEN METHOD

E = (Ø x N x CU x DF)/A

Where :

E = Ave. or maintained Illumination

N = Number of Lamps

CU = Coefficient of Utilization

DF = Depreciation or Maintenance Factor

Ø = Lumen output per lamp (given by Lamp suppliers)

A = Area being Illuminated
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Anonymous Poster
#4
In reply to #3

Re: lux calculation

05/17/2008 6:00 AM

How can i get value of Co efficient of utilization and Depreciation or maintenance factor?
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Anonymous Poster
#5

Re: lux calculation

08/05/2008 9:22 AM

value of avg illumintion was how much? thanks a lot
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Anonymous Poster
#6

Re: lux calculation

12/07/2010 5:24 AM

i want know about fromwhere i can get coefficent of utrilisation
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