Download e-book for kindle: Advanced renewable energy sources. Part - I by S C Bhatia

By S C Bhatia

ISBN-10: 1782422692

ISBN-13: 9781782422693

ISBN-10: 1782422730

ISBN-13: 9781782422730

ISBN-10: 9380308434

ISBN-13: 9789380308432

ISBN-10: 9380308736

ISBN-13: 9789380308739

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To deliver the desired amount of energy, the fuel cells can be combined in series and parallel circuits, where series yields higher voltage, and parallel allows a higher current to be supplied. Such a design is called a fuel cell stack. The cell surface area can be increased, to allow stronger current from each cell. 15 Renewable sources Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished).

This is because water can be accumulated above the dam and released to coincide with peak demand. 2. Electricity can be generated constantly, so long as sufficient water is available. 24 Advanced renewable energy systems 3. Hydroelectric power produces no primary waste or pollution. 4. Hydropower is a renewable resource. 5. Hydroelectricity assists in securing a country’s access to energy supplies. 6. Much hydroelectric capacity is still undeveloped, such as in Africa. Cons 1. The construction of a dam can have a serious environmental impact on the surrounding areas.

G 6. Upward longwave radiation, L↑, is the quantity of longwave radiation emitted upwards by the earth’s surface and the shallow layer of atmosphere below the level of the measuring instrument, and passing through unit area in the horizontal in unit time. 36 Advanced renewable energy systems 7. Downward longwave radiation, L↓, is the longwave radiation emitted downwards by the earth’s atmosphere and passing through a unit horizontal area at the level of the instrument in unit time. 8. Net longwave radiation, L*, is the difference between the outgoing and incoming longwave radiation and is given by L* = L↑ – L↓.

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Advanced renewable energy sources. Part - I by S C Bhatia

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