Solar energy and its uses
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This document provides an overview of solar energy sources and technology. It defines solar energy as energy obtained from radiation emitted by the sun. Solar panels convert sunlight into electricity through photovoltaic cells made of silicon semiconductors. Passive solar uses sunlight without equipment to warm buildings, while active solar uses collectors and fluid/air transfer to store solar heat. Advantages include reducing global warming, energy reliability and independence, while disadvantages include high initial costs and needing batteries for nighttime use.
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Solar energy can be harnessed through three main technologies:
1) Solar photovoltaics use silicon cells to convert sunlight directly into electricity. This was first achieved in 1954 and solar cells now power satellites, calculators and more.
2) Solar heating and cooling technologies collect thermal energy from the sun to provide hot water, space heating, cooling and pool heating.
3) Concentrating solar power plants use mirrors to focus sunlight and power steam turbines or engines to generate electricity, including storing thermal energy for nighttime use.
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This document provides an overview of solar energy technology presented by Vanita Thakkar. It discusses the limitations of conventional energy sources and why solar energy is an important alternative. It then describes different types of solar energy utilization including direct conversion technologies like photovoltaics and solar thermal conversion systems. Photovoltaics convert sunlight directly into electricity using solar cells while solar thermal systems use collectors to convert sunlight into heat for applications such as water heating. Flat plate collectors and concentrating collectors are also discussed. The document provides details on various solar thermal power plants and technologies.
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- Solar energy refers to the energy from the sun, which has produced energy for billions of years and is a renewable source of energy unlike fossil fuels. It is one of the cleanest sources of energy since it does not produce pollutants.
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The document provides an introduction to solar energy, including:
- The sun produces enormous amounts of energy that can be harnessed using solar panels to generate electricity. On average, every square meter of the Earth's surface receives 164 watts of solar energy from the sun.
- Solar energy refers to the energy from the sun, which has produced energy for billions of years and is a renewable source of energy unlike fossil fuels. It is one of the cleanest sources of energy since it does not produce pollutants.
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major invention or works or discoveries in science,mathematics.this ppt contains information regarding aryabhattia,his knowledge on Place value system and zero Pi as irrational Mensuration and trigonometry Indeterminate equations Algebra
and in astronomy
Motions of the solar system Eclipses Sidereal periods Heliocentrism.
Advantages of sports (physical,mental,social,)
physical ,mental , social benefits of playing sports
or the advantages of sport practices in our physical ,mental , social health
More from fathimalinsha (6)
Solar energy and its uses
- 1. Solar energy and its uses #fathimalinsh
- 2. Solar energy is radiant light and heat from the sun harnessed using a range of ever-evolving technologies such as solar heating, photovoltaic etc. It comes as electromagnetic waves.
- 3. Use of solar energy
- 4. Solar energy is radiant light and heat from the sun harnessed using a range of ever-evolving technologies such as solar heating, photovoltaic etc.
- 7. Artificial satellites and space probes like Mars orbiters use solar cells as the main source of energy.
- 10. Solar furnace
- 12. seasonal thermal energy storage for year-round
- 13. Solar pond
- 18. 2 ways of generatin
- 19. Concentrated solar power using mirrors or lenses.
- 27. They have no moving parts, require little maintenance and work quite satisfactorily without the use of any focusing device
- 28. They can be set up in any area (eg:remote area)
- 29. Requires or no space on the ground .
- 31. Silicon, which is used for making solar cells, is abundant in nature but availability of the special grade silicon for making solar cells is limited.
- 32. The entire process of manufacture is still very expensive, silver used for interconnection of the cells in the panel further adds to the cost
- 39. Solar panel
- 40. For related videos (NOTE - it will be there in Description box :down below also) : Solar Cooker and how it works https://youtu.be/vzBQb2W3NyI DIY: solar cooker or oven from cardboard box https://youtu.be/kx5mOdkuFC4 working of photovolatic or Solar Energy Panels https://youtu.be/8esj5nZcWdE Thankyou