HARNESSING ELECTRICAL ENERGY FROM LIGHT ENERGY

HARNESSING ELECTRICAL ENERGY FROM LIGHT ENERGYOut Line Of The PresentationIntroductionWhat is lightning and how it occurs?How much of energy it release & lightning factsMechanism of Harvesting lightening energyBuilding a lighting harnessing power plantAdvantages & Disadvantagesconclusion

Introduction:This presentation describes about the method for harvesting the new source of renewable energy from lightning stroke in a small-scale system. It is known that lightning can produce huge scale of electricity. So, the main obstacle is to collect the huge amount of energy correctly.Lightning is a massive electrostatic discharge between electrically charged regions within clouds, or between a cloud and the Earths surface

The charged regions within the atmosphere temporarily equalize themselves through a lightning flash, commonly referred to as a strike if it hits an object on the ground.Lightning primarily occurs when warm air is mixed with colder air masses resulting in atmospheric disturbances necessary for polarizing the atmosphere.Lightning occurs approximately 4050 times a second worldwide, resulting in nearly 1.4 billion flashes per year.How Much Energy It Gives??One lightning strike typically packs eleven giga watts.A mega strike, which shows up rarely in winter storms, for example, can pack as much as 300gigawatts. The Discovery Channel in Canada put this in layman's terms, explaining that one lightning strike has enough energy to light 150,000,000 light bulbs. An Atlanta Journal article states that one storm can discharge enough energy to supply the entire U.S. with electricity for 20 minutes. Lightning facts:

Radio and Radio Equipment(1.2%)Golf and Trees(1.7%)Telephone(4.0%)Farm andHeavy Equipment(5.0%)Golf(6.5%)Open Fields(45.0%)Under Trees(23.0%)Water(13.6%)MechanismA technology capable of harvesting lightning energy would need to be able to rapidly capture the high power involved in a lightning bolt. Several schemes have been proposed, but the ever-changing energy involved in each lightning bolt render lightning power harvesting from ground based rods impractical too high, it will damage the storage, too low and it may not work.What is a lightning rod?Lightning rods were originally developed by Benjamin Franklin. A lightning rod is very simple -- it's a pointed metal rod attached to the roof of a building. The rod might be an inch (2 cm) in diameter. It connects to a huge piece of copper or alluminium wire that's also an inch or so in diameter. The wire is connected to a conductive grid buried in the ground near by.

How it works????

Building a lighting harnessing power plant :By using a nitro laser causes ionization in the air.

This creates a pathway of lower resistance for a lightning bolt to travel along, thus directing it to the receiving end of his capturing apparatus.

The strike is then sent through an 'electronic breakwater' to make the strike more manageable when the electricity comes out the other end.

It can then be electrolyzed into hydrogen and oxygen or stored in a high-voltage capacitor array."

Non exhaustible.Huge energy available at a time.Non pollutable.Advantages:Being at the right place ,at the right time.Being able to collect a large amount of energy in a short period of time without being killedStoring that energy Releasing that energy in a manageable way.Disadvantages:Harnessing electrical energy from lightning may seem like a distant dream as of now but the days are fast approaching when lightning can provide a solution for all our power crisis issues. Lightning rods have proved themselves to be the source in command in realizing the solution for this issueConclusion:Any Queries ?????Thank You Sheet: Chart1Sheet: Sheet1Sheet: Sheet2Sheet: Sheet3Open FieldsUnder TreesWaterGolfHeavy EquipmentTelephoneGolf and TreesRadio Equipment0.450.230.1360.0650.050.040.0170.012Lightning Casualties In U.S. (1959-1994)Adapted from Curran, et. al. (1997)Open FieldsUnder TreesWaterGolfHeavy EquipmentTelephoneGolf and TreesRadio Equipment0.1360.0170.012