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Solar energy
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- 2. WHAT IS SOLARENERGY? • Solar energy is radiant light and heat from the Sun that is harnessed using a range of ever-evolving technologies such as solar heating, photovoltaics, solar thermal energy, solar architecture, molten salt power plants and artificial photosynthesis. • It is an important source of renewable energy and its technologies are broadly characterized as either passive solar or active solar depending on how they capture and distribute solar energy or convert it into solar power.
- 3. • Active solartechniques include the use of photovoltaic systems, concentrated solar power and solar water heating to harness the energy. • Passive solar techniques include orienting a building to the Sun, selecting materials with favourable thermal mass or light-dispersing properties, and designing spaces that naturally circulate air.
- 4. POTENTIAL • The potentialsolar energy that could be used by humans differs from the amount of solar energy present near the surface of the planet because factors such as geography, time variation, cloud cover, and the land available to humans limit the amount of solar energy that we can acquire. • Geography affects solar energy potential because areas that are closer to the equator have a greater amount of solar radiation. However, the use of photovoltaics that can follow the position of the sun can significantly increase the solar energy potential in areas that are farther from the equator. • Time variation effects the potential of solar energy because during the nighttime there is little solar radiation on the surface of the Earth for solar panels to absorb. This limits the amount of energy that solar panels can absorb in one day.
- 6. POTENTIAL • Cloud covercan affect the potential of solar panels because clouds block incoming light from the sun and reduce the light available for solar cells. • In addition, land availability has a large effect on the available solar energy because solar panels can only be set up on land that is otherwise unused and suitable for solar panels. Roofs have been found to be a suitable place for solar cells, as many people have discovered that they can collect energy directly from their homes this way. Other areas that are suitable for solar cells are lands that are not being used for businesses where solar plants can be established.
- 7. SOLAR WATER HEATING •Solar hot water systems use sunlight to heat water. In low geographical latitudes (below 40 degrees) from 60 to 70% of the domestic hot water use with temperatures up to 60 °C can be provided by solar heating systems. The most common types of solar water heaters are evacuated tube collectors (44%) and glazed flat plate collectors (34%) generally used for domestic hot water; and unglazed plastic collectors (21%) used mainly to heat swimming pools. • As of 2007, the total installed capacity of solar hot water systems was approximately 154 thermal gigawatt (GWth). China is the world leader in their deployment with 70 GWth installed as of 2006 and a long-term goal of 210 GWth by 2020. Israel and Cyprus are the per capita leaders in the use of solar hot water systems with over 90% of homes using them. In the United States, Canada, and Australia, heating swimming pools is the dominant application of solar hot water with an installed capacity of 18 GWth as of 2005.
- 8. UNGLAZED PLASTIC COLLECTOR GLAZED FLAT PLATECOLLEC- TOR EVACUATED TUBE COLLECTOR
- 9. CASE STUDY 1 ENERGYACADEMY EUROPE ON SITE
- 10. The new, ambitiousbuilding for the Energy Academy Europe promises to become the most sustainable education building of the Netherlands. It is a new top institute in which industry, education and academia are joining forces to work together on research and innovation in the field of energy. To achieve the extremely sustainable energy principles, the building has been given a particular design with a large solar roof. The construction of almost 15.000 m2with BREEAM-rating ‘Outstanding’ will be realized in 2015-2016 on the Zernike Energy Academy Europe https://www.youtube.com/watch?v=g1YcZ1J4oIc Video to watch
- 11. CASE STUDY 2 NRELResearch Support Facility ON SITE
- 12. NREL • The NationalRenewable Energy Laboratory (NREL), located in Golden, Colorado, specializes in renewable energy and energy efficiency research and development • It is a zero energy building with a Platinum LEED rating • Occupancy type: office , research facility
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- 15. WELSPUN SOLAR POWERPLANT OFF SITE CASE STUDY 3
- 16. • This isa solar power plant. • The solar energy is trapped from the solar panels on a whole large field. • Located in Neemuch, Madhya Pradesh. • It is currently the largest solar power plant in Asia fully functioning and delivering. • It is spread across 800 acres of barren and uncultivated land. • Produces a net power of 150MW. • Total cost of this power plant is 180 million USD.
- 17. • A powerof 150 MW is produced in the plant. • Avg energy produced in an year is 1.37*10*12KJ. • That is almost equivalent to 3.38*10*8KWH. • It is assumed that the plant is functioning for 7 hours on daily basis, throughout the year. https://www.youtube.com/watch?v=84UiGnQZE0c Video to watch
- 18. How to achievea net zero building ? • Site selection and orientation of the building. • Passive solar design. • Building envelope design : selecting walls, roofs, fenestrations based on long term insulation, air barrier performance, and durability. • Water reservoirs within the building. • Thermal IMSS • Tight building envelope • Balanced insulation • Balanced ventilation • Heating and cooling equipment • Hot water for domestic purpose • Efficient lighting • Source of alternative energy https://www.youtube.com/watch?v=pQFJr5E7_R0 Video to watch
- 19. THANK YOU BY: AZAM KHAN RAMYA RUTHVIK SAIKRISHNA SAKSHI A SINDGI SAKSHEE BANGA SHIVANI SHOBITHA C SHREYA P RAIKAR SNEHA REDDY THARUN YAMINI K RACHANA V BMSSA