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Презентация была опубликована 10 лет назад пользователемАлиса Бабина
1 About myself
2 References: 1. Agrafiotis, C.; Roeb, M.; Konstandopoulos, A.G.; Nalbandian, L.; Zaspalis, V.T.; Sattler, C.; Stobbe, P.; Steele, A.M. (2005). "Solar water splitting for hydrogen production with monolithic reactors". Solar Energy 79 (4): 409–421. doi: /j.solener Anderson, Lorraine; Palkovic, Rick (1994). Cooking with Sunshine (The Complete Guide to Solar Cuisine with 150 Easy Sun-Cooked Recipes). Marlowe & Company. ISBN X. 3. Balcomb, J. Douglas (1992). Passive Solar Buildings. Massachusetts Institute of Technology. ISBN Bénard, C.; Gobin, D.; Gutierrez, M. (1981). "Experimental Results of a Latent-Heat Solar-Roof, Used for Breeding Chickens". Solar Energy 26 (4): 347–359. doi: / X(81)90181-X. 5. Bolton, James (1977). Solar Power and Fuels. Academic Press, Inc.. ISBN Bradford, Travis (2006). Solar Revolution: The Economic Transformation of the Global Energy Industry. MIT Press. ISBN X. 7. Butti, Ken; Perlin, John (1981). A Golden Thread (2500 Years of Solar Architecture and Technology). Van Nostrand Reinhold. ISBN Carr, Donald E. (1976). Energy & the Earth Machine. W. W. Norton & Company. ISBN Daniels, Farrington (1964). Direct Use of the Sun's Energy. Ballantine Books. ISBN Halacy, Daniel (1973). The Coming Age of Solar Energy. Harper and Row. ISBN Hunt, V. Daniel (1979). Energy Dictionary. Van Nostrand Reinhold Company. ISBN
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4 23. Schittich, Christian (2003). Solar Architecture (Strategies Visions Concepts). Architektur-Dokumentation GmbH & Co. KG. ISBN Smil, Vaclav (1991). General Energetics: Energy in the Biosphere and Civilization. Wiley. pp ISBN Smil, Vaclav (2003). Energy at the Crossroads: Global Perspectives and Uncertainties. MIT Press. pp ISBN Smil, Vaclav ( ) (PDF). Energy at the Crossroads. Organisation for Economic Co-operation and Development. ISBN Retrieved on Tabor, H. Z.; Doron, B. (1990). "The Beith Ha'Arava 5 MW(e) Solar Pond Power Plant (SPPP)--Progress Report". Solar Energy 45 (4): 247– doi: /0038X(90)90093-R. 28. Tiwari, G. N.; Singh, H. N.; Tripathi, R. (2003). "Present status of solar distillation". Solar Energy 75 (5): 367–373. doi: /j.solener Tritt, T.; Böttner, H.; Chen, L. (2008). "Thermoelectrics: Direct Solar Thermal Energy Conversion". MRS Bulletin 33 (4): 355– Tzempelikos, Athanassios; Athienitis, Andreas K. (2007). "The impact of shading design and control on building cooling and lighting demand". Solar Energy 81 (3): 369–382. doi: /j.solener Vecchia, A.; Formisano, W.; Rosselli, V; Ruggi, D. (1981). "Possibilities for the Application of Solar Energy in the European Community Agriculture". Solar Energy 26 (6): 479–489. doi: / X(81) Yergin, Daniel (1991). The Prize: The Epic Quest for Oil, Money, and Power. Simon & Schuster. pp ISBN Zedtwitz, P.v.; Petrasch, J.; Trommer, D.; Steinfeld, A. (2006). "Hydrogen production via the solar thermal decarbonization of fossil fuels". Solar Energy 80 (10): 1333–1337. doi: /j.solener
5 Solar energy
6 A parabolic dish and Stirling engine system, which concentrates solar energy to produce useful solar power.
7 Solar energy is the radiant light and heat from the Sun. Solar radiation along with secondary solar resources such as wind and wave power, hydroelectricity and biomass account for most of the available renewable energy on Earth. Only a minuscule fraction of the available solar energy is used.radiant availablerenewableminuscule
8 Solar power technologies provide electrical generation by means of heat engines.
9 Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute sunlight.capture
10 Active solar techniques include the use of photovoltaic panels, solar thermal collectors, with electrical or mechanical equipment, to convert sunlight into useful outputs.thermal
12 Passive solar techniques include orienting a building to the Sun, selecting materials with favorable thermal mass or light dispersing properties, and designing spaces that naturally circulate air. dispersing circulate
13 Energy from the Sun
14 About half the incoming solar energy reaches the Earth's surface. incoming surface
15 The Earth receives 174 petawatts (PW) of incoming solar radiation (insolation) at the upper atmosphere.
16 Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses.reflected
17 The spectrum of solar light at the Earth's surface is mostly spread across the visible and near-infrared ranges with a small part in the near- ultraviolet. spread
19 Earth's land surface, oceans and atmosphere absorb solar radiation, and this raises their temperature. Warm air containing evaporated water from the oceans rises, causing atmospheric circulation or convection. When the air reaches a high altitude, where the temperature is low, water vapor condenses into clouds, which rain onto the Earth's surface, completing the water cycle.evaporated circulation altitude
20 The latent heat of water condensation amplifies convection, producing atmospheric phenomena such as wind, cyclones and anti-cycloneslatentamplifies
21 Sunlight absorbed by the oceans and land masses keeps the surface at an average temperature of 14 °C. By photosynthesis green plants convert solar energy into chemical energy, which produces food, wood and the biomass from which fossil fuels are derived.fossil
22 The total solar energy absorbed by Earth's atmosphere, oceans and land masses is approximately 3,850,000 exajo ules (EJ) per year.
23 From the table of resources it would appear that solar, wind or biomass would be sufficient to supply all of our energy needs, however, the increased use of biomass has had a negative effect on global warming and dramatically increased food prices by diverting forests and crops into biofuel production. As intermittent resources, solar and wind raise other issues.dramaticallyintermittentissues
25 Energy storage methods
26 Solar energy is not available at night, and energy storage is an important issue because modern energy systems usually assume continuous availability of energy.assume
27 Thermal mass systems can store solar energy in the form of heat at domestically useful temperatures for daily or seasonal durations. Thermal storage systems generally use readily available materials with high specific heat capacities such as water, earth and stone. Well- designed systems can lower peak demand, shift time-of-use to off-peak hours and reduce overall heating and cooling requirements.durationsoverall
28 Phase change materials such as paraffin wax and Glauber's salt are another thermal storage media. These materials are inexpensive, readily available, and can deliver domestically useful temperatures (approximately 64 °C). The "Dover House" (in Dover, Massachusetts) was the first to use a Glauber's salt heating system, in 1948.salt inexpensive
29 Solar energy can be stored at high temperatures using molten salts. Salts are an effective storage medium because they are low-cost, have a high specific heat capacity and can deliver heat at temperatures compatible with conventional power systems.
31 Off-grid PV systems have traditionally used rechargeable batteries to store excess electricity. With grid-tied systems, excess electricity can be sent to the transmission grid. Net metering programs give these systems a credit for the electricity they deliver to the grid. This credit offsets electricity provided from the grid when the system cannot meet demand, effectively using the grid as a storage mechanism. rechargeable excess
32 Pumped-storage hydroelectricity stores energy in the form of water pumped when energy is available from a lower elevation reservoir to a higher elevation one. The energy is recovered when demand is high by releasing the water to run through a hydroelectric power generator. reservoir
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