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Join Date: Jan 2008
Posts: 17

Efficiency in Lighting

04/14/2008 6:32 AM

Is there any saving in fluorescent light aside change the conventional ballast to electronic ballast.

Do we have a kind of lighting(with same function) that can replace mercury light and decrease the energy consumption.

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Guru
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#1

Re: Efficiency in lighting

04/14/2008 9:27 AM

Using electronic ballast in place of conventional ballast will save energy.

For a 40 Watts Tube light the power consumption is approximately 44 watts at rated voltage with conventional choke, where as for the same tube light with same voltage and same candle power the consumption will be approximately 36 watts. around 15 % energy saving. Now with development of CFL which has an energy saving of 70 % compared with incandescent lamp and 50% saving compared to fluorescent lamps, the use of electronic ballast for energy saving has become insignificant

For replacement of energy saving MV lamps see the link below

http://www.powersavingsolution.com/hid-lamps.htm

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Power-User
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#2

Re: Efficiency in Lighting

04/15/2008 3:56 AM

Yes, there is a detailed explanation but would require a lot of typing. Let me know if interested.

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#3
In reply to #2

Re: Efficiency in Lighting

04/15/2008 4:00 AM

If you don mind , I really like to know

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Power-User
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#4
In reply to #3

Re: Efficiency in Lighting

04/15/2008 5:11 AM

I may be shot down in mid flight but here goes...A conventional incandescent lamp converts about 95% of the power it consumes into heat the other 5% is light. One the other scale a CFLi lamp has about 90% light with only 10% going as heat generated. I am basing the afore mentioned on a 100 watt incandescent and a 23w CFLi (compact fluorescent lamp integrated). Apart from the almost equal lumen intencity it is quite clear to c the wattage difference between the two. This lower power relates to approx 800Kwh saving in the 10000 hour lifespan of the lamp (which is 12 times longer than a Incandescent). It relates to 200kg burning coal or 160l fuel oil. The lamp is 75% recyclable and the manufacturing process has being improved to further lower power requirements during manufacture as this is part and parcel of the overall power savings. The cadmium and arsenic have being largely removed there is still however mercury involved in the manufacturing process.

How it works? well it converts the ac voltage into DC smooths it using a capacitor, a self resonating oscillator creates a high frequency which powers the lamp (nutshell version)

Hope this helps...i'm off for a cup of tea

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#5
In reply to #4

Re: Efficiency in Lighting

04/15/2008 5:23 AM

Thanks a lot for explanation. it's very clear

I wish I can discuss another topic again with you, of course with a cup of hot coffe /tea.

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Associate

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#6

Re: Efficiency in Lighting

04/15/2008 11:09 AM

Also, it is important to note that the heat load will be reduced thus affecting the a/c load on the building. And as technology keeps progressing, there are some great advancements to LED lights that very well could replace the CF lights.

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Power-User
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#7

Re: Efficiency in Lighting

04/17/2008 8:22 PM

H.P.Sodium offers more light per watt than Mercury Vapor,

sometimes with minimal changes in the installation.

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