Solar Wind Power

Presented By,SUDHIN P.KROLL NO:58

The most exciting phrase to hear in science, the one that heralds new

discoveries, is not "Eureka" but "That's funny..."

-ISAAC ASIMOV

“If at first an idea does not sound absurd, then there is no hope for it. “

-Albert Einstein

What is Solar Wind Power? Need of Solar Wind Power? Important terms Working Advantages Disadvantages Future Scope Conclusion Reference

In Brief……

A method to produce Energy from the Solar

wind.

It uses a specially designed Satellite known as dyson-harrop satellite .

A larger model, with a kilometer-long copper wire, could generate upward of a billion billion giga watts.

What is Solar Wind Power?

Increase in global energy demand. Renewable resources are limited Decrease in fossil fuels. Increasing Environmental problems Harmful Effects of nuclear power. Low efficiency of solar panels. Unavailability of enough wind.

Need of Solar Wind Power?

The Challenge….

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a stream of charged particles ejected from the

upper atmosphere of the Sun.

mostly consists of electrons and protons .

Creates Geomagnetic Storms, northern and southern lights.

What is Solar Wind ?

Solar particles interact with Earth's magnetosphere.

Northern and southern lights

a hypothetical mega structure originally described

by Freeman Dyson in "Search for Artificial Stellar Sources of Infrared Radiation" in Science.

a system of orbiting solar power satellites meant to completely encompass a star and capture most or all of its energy output.

Many variants – Dyson Swarm, Dyson Bubble, Dyson Shell

Dyson Sphere

Freeman Dyson

Invented by Brooks Harrop based on Dyson Sphere

concept. Consist of a long metal wire loop pointed at the sun. 1-centimetre-wide copper wire 300 meters long, a

receiver 2 meters wide and a sail 10 meters in diameter, sitting at roughly the same distance from the sun as the Earth, could generate 1.7 megawatts of power

1-kilometre-long wire and a sail 8400 kilometers wide could generate roughly 1 billion billion gigawatts.

THE DYSON-HARROP SATELLITE (DHS)

DYSON-HARROP SATELITE

(A)sun

(l)-ve ions

(C)Magnetic field

(B)+ve

ions D

receiver(E)Pre-wire

Main wire(F)

GSail

inductor(H)

Laser(J)

(K)electrons

Excess electrons(m)

(m)

Micro Wave Power Transmission Magnetron : electric current

electromagnetic waves. Antennas and Rectennas . Two Types of Rectennas - Wire mesh reflector

and Magic carpet. Higher Efficiency

Transmission

MAGNETRON

Clean and Safe Energy source. Produce large amount of power. Unlimited Energy source. Relatively cheap – Major portion of the system

consist copper. Can provide power at a rate that increase

proportionally to the square of current through the main wire

ADVANTAGES

Complexity in construction Requires bigger satellites Will have losses during transmission. Size of antennas and rectennas. Launch cost is high.

Disadvantages

Conclusion

Since it produces large amount of power losses can be neglected.

Step towards large scale renewable energy generation.

Futuristic energy source.

“By 2050, even if we use every available energy resource we have: clean and dirty, conventional and alternative, solar, wind, geothermal, nuclear, coal, oil, and gas, the world will fall short of the energy we need. There is an answer: a power source that produces no carbon emissions … that can

reach to most distant villages of the world, and can turn both countries into net energy and technology exporters.”

“I am convinced that harvesting solar power in space can bring India and United States of America together in whole new ways. And I am certain that harvesting solar power in space can upgrade the living standard of

the human race.”

- A. P. J. Abdul Kalam

THANK YOU…

Brooks L. Harrop and Dirk Schulze-Makuch, "The Solar

Wind Power Satellite as an alternative to a traditional Dyson Sphere and its implications for remote detection," International Journal of Astrobiology (2010).

“Out-of-this-world proposal for solar wind power “

New Scientist September 2010 by Charles Choi

Reference

en.wikipedia.org/wiki/Dyson_sphere en.wikipedia.org/wiki/Solar_wind en.wikipedia.org/wiki/Dyson–Harrop_satellite

www.alternative-energy-news.info/solar-wind-power/

http://news.discovery.com/tech/solar-wind-energy-power.html

Reference (contd)