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SOLAR ENERGY PPT PDF

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Solar energy has been used since time immemorial to dry agricultural products, simple water pump driven by solar energy and in B.C. Archimedes of. The Ultimate Renewable Resource. Xiangfeng Duan. What is Solar Energy? Originates with the thermonuclear fusion reactions occurring in the sun. Represents. “I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait 'til oil and coal run out before we tackle that.” - Thomas.


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Solar EnergySolar Energy Shubhajit Basak(Roll no) Saumik Bhattyacharya( Roll no) Debraj Biswas(Roll no) E.C.E, 2nd YEAR. Solar Energy and tvnovellas.info - Download as Powerpoint Presentation .ppt / .pptx), PDF File .pdf), Text File .txt) or view presentation slides online. Water in direct system circulated in two ways: • Active system: pumps heated water from collector to solar storage tank. • Passive system: no pump -.

Long distance transmission allows remote renewable energy resources to displace fossil fuel consumption. Solar power plants use one of two technologies: Photovoltaic PV systems use solar panels , either on rooftops or in ground-mounted solar farms , converting sunlight directly into electric power. Concentrated solar power CSP, also known as "concentrated solar thermal" plants use solar thermal energy to make steam, that is thereafter converted into electricity by a turbine. Photovoltaics Schematics of a grid-connected residential PV power system [5] A solar cell , or photovoltaic cell PV , is a device that converts light into electric current using the photovoltaic effect. The first solar cell was constructed by Charles Fritts in the s. For practical use this usually requires conversion to certain desired voltages or alternating current AC , through the use of inverters. In certain applications such as satellites, lighthouses, or in developing countries, batteries or additional power generators are often added as back-ups.

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Concentrated solar power Main article: Concentrated solar power A parabolic collector concentrates sunlight onto a tube in its focal point. Concentrated solar power CSP , also called "concentrated solar thermal", uses lenses or mirrors and tracking systems to concentrate sunlight, then use the resulting heat to generate electricity from conventional steam-driven turbines.

A wide range of concentrating technologies exists: among the best known are the parabolic trough , the compact linear Fresnel reflector , the Stirling dish and the solar power tower. Various techniques are used to track the sun and focus light.

Solar Energy Seminar with Report

In all of these systems a working fluid is heated by the concentrated sunlight, and is then used for power generation or energy storage. The receiver is a tube positioned along the focal points of the linear parabolic mirror and is filled with a working fluid.

The reflector is made to follow the sun during daylight hours by tracking along a single axis. Parabolic trough systems provide the best land-use factor of any solar technology.

Pdf ppt solar energy

This has the advantage that flat mirrors can be used which are much cheaper than parabolic mirrors, and that more reflectors can be placed in the same amount of space, allowing more of the available sunlight to be used. Concentrating linear fresnel reflectors can be used in either large or more compact plants.

The advantages of Stirling solar over photovoltaic cells are higher efficiency of converting sunlight into electricity and longer lifetime. Parabolic dish systems give the highest efficiency among CSP technologies.

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What is Solar Energy? Energy from the sun. There are two types of solar energy: Thermal Energy is everywhere. It heats the earth, our bodies and our homes.

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It dries our clothes. All for free! Electric Energy uses the power of the sun to produce electricity through solar cells, otherwise known as Photovoltaics PV.

No Activity Amount deposited in the atmosphere 1.

Pdf ppt solar energy