solar power satellite full report

[seminar class]

presented by:
PRANEETH DHANRAJ

---

[attachment=10832]
INTRODUCTION
 The concept of SATELLITE POWER SYSTEM was proposed by P.E.GLASER in 1968 to meet both space based and earth based power needs.
 This power station a satellite for transmission of its generated power called SOLAR POWER SATELLITE(SPS).
SOLAR POWER SATELLITE
 The concept of the Solar Power Satellite (SPS) is very simple.
 It is a gigantic satellite designed as an electric power plant orbiting in the Geostationary Earth Orbit (GEO).
RECTEENA
(RECTifying anTENNA rectifies received microwaves into DC current)
 A rectenna comprises of a mesh of dipoles and diodes for absorbing microwave energy from a transmitter and converting it into electric power.
 Its elements are usually arranged in a mesh pattern, giving it a distinct appearance from most antennae.
 A simple rectenna can be constructed from a schottky diode placed between antenna dipoles
SPACE SETTELEMENT
 Space settlement is a unique concept for colonization beyond the Earth
 It can be utilized as a reaction engine, which can use literally anything for fuel
 The mass-driver has been assembled from components lifted by several shuttle flights, and soon will be ready to begin hauling cargo for a small moon base to lunar orbit
 There, a lunar shuttle soft-lands cargo for the moon base onto the surface.
 The cargo includes small habitats, solar arrays, mining equipment, and components for the assembly of another mass-driver on the surface.
 This mass-driver will be used as a catapult to launch lunar ores to a point in space where they can be collected.
A Solar Power Satellite (SPS) with a thoroughly energized Earth in the background
 One of the first things we will begin doing once we are using space resources is constructing a SPS, a vast solar array which gathers the constant solar power in orbit and beams energy to Earth in the form of a safe, low-density microwave beam.
 On Earth, the beam is intercepted by a rectenna several miles across, where it is converted back into electricity.
 The electricity is then rectified to AC, and fed into the power grid.
 The goal is to undersell power generated by fossil fuels or nuclear energy.
 The rectennas will be huge, but the land underneath need not go to waste.
 Since the array absorbs the microwaves, but allows sunlight and rainfall through, the land could be used for farming or ranching.
 Or, as in this case, the rectenna could be built as a vast set of greenhouses, feeding millions.