solar lantern
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sairam_m414
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Posts: 3
Joined: Apr 2010
#1
24-04-2010, 03:41 PM


hi sir,
i'm an NGO i want to know the project and implimentation detials for solar lantern.I request you to send the required details for me,it would be so helpful for me.I'm also an engineering student in ECE.So please kindly provide me the details for solar lantern.[/i]
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reports-crawler
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Posts: 291
Joined: Apr 2010
#2
26-04-2010, 02:00 PM

WHITE LED BASED SOLAR LANTERN SYSTEM
DEFINITION:
LED emits light when an electric
current passes through it. A Solar lantern consists of a
lamp, battery and electronics, all placed in a suitable housing. The battery is charged by electricity
generated through the PV module.

BROAD PERFORMANCE PARAMETERS :
The light source is White Light Emitting Diode (W-LED), dispersed, soothing to eyes. The battery used in this is Lead acid Sealed maintenance free or Ni MH or Lithium Ion. The electronics provides an efficiency Min 80% total efficiency . It can provide light for 4 hours a day .


PV MODULE:
The PV modules based on crystalline silicon solar cells or thin films may be used.

ELECTRONIC PROTECTIONS:
Adequate protection is to be incorporated under no load conditions,
e.g. when the lamps are removed and the system is switched ON. Fuses to protect against short circuit conditions should be provided. A blocking diode should be provided to prevent reverse
flow of current through the PV module.

OTHER FEATURES :
The indicator system including a green light to indicate
charging in progress and a red LED to indicate deep discharge condition of the battery.


for more details:

.pdf   solar_led_lantern.pdf (Size: 27.46 KB / Downloads: 57)
solarlantern.blogspot
ednarticle/CA404521.html
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
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