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  1. Bangladesh University of Business and Technology Presentation Course Title: Arechitectural, Engineering and planning apprecitation Course Code: CE 140 Department of Civil engineering
  2. • Name : Khadiza Akter Prianka Name : Imran Hossain Name : Md.Ekbal ID : 21225109043 ID : 21225109031 ID : 21225109047 Intake : 04 Intake : 04 Intake : 04 Submitted By
  3. Name : JhumurAkter Name : Md.YellowAno Name : ToiwmoonAktana ID : 21225109036 ID : 21225109033 ID : 2122510908 Intake : 04 Intake :04 Intake :04
  4. Submitted To Md. Sanaullah Shamim Assistant professor Department of Civil Engineering
  6. History of solar • The photovoltaic effect was first experimentally demonstrated by French physicist Edmond Becquerel ,In 1839. • Albert Einstein explained the underlying mechanism of light instigatedcarrier excitation- the photoelectric effect- in 1905
  7. History of solar • The first practical photovoltaic cell was publicly demonstrated on April 25,1954 at Bell Laboratories • From 2002 we can see the modern solar cell
  8. What is solar panel? A solar panel is a flat construction resembling a window, Solar panels are those devices which are used to absorb the sun's rays and convert them into electricity or heat. A solar panel is actually a collection of solar (or photovoltaic) cells, which can be used to generate electricity through photovoltaic effect.
  9. Forms of solar energy • 1) Solar Thermal-Using sun energy to heat thing like your house ,water ,food, etc. • 2)Solar Electric- Turning light from the sun directly into electricity,using solar panels.
  10. What types of solar panel? 1.Monocrstalline solar panel 2.Polycrstalline solar panel 3.Thin Film 4.Concentrated PV cell
  11. Comparison among the four types of solar cells and efficiency Material Efficiency(%) Monocrystalline 20% Polycrystalline 15% Thin Film 7-10% ConcentratedPV cells 41%
  12. What are the Main Components of a Solar Panel?
  13. How Do Solar Panels Work On A House? • First, sunlight hits a solar panel on the roof. The panels convert the energy to DC current, which flows to an inverter. The inverter converts the electricity from DC to AC, which you can then use to power your home. It's beautifully simple and clean, and it's getting more efficient and affordable all the time.
  14. Basic StepsIn Solar EnergyGeneration And Transmission Sunlight hits the solar panels, and creates an electric field. The electricity generated flows to the edge of the panel, and into a conductive wire. The conductive wire brings the electricity to the inverter, where it is transformed from DC electricity to AC, which is used to power buildings. Another wire transports the AC electricity from the inverter to the electric panel on the property , which distributes the electricity throughout the building as needed.
  15. Solarpanel advantages 1.Solar reduces electric bills 2.Solar panels improve the value of your home 3.Going solar reduces your carbon emissions 4.A solar installation protects against rising energy costs 5.You can earn money back on your solar investment 6.Solar is a versatile energy source 7.Solar electricity can be sold back to the grid 8.Solar panels require very little maintenance
  16. Solar panel disadvantages 1.Location & Sunlight Availability 2.Solar Panels Use a Lot of Space 3.Sunshine is Unreliable 4.Solar Panels are Inefficient 5.Solar Panels Create EnvironmentalDegradation 6.Solar Panel Production Uses Fossil Fuels 7.Solar Panels Create Toxic Waste 8.Expensive Energy Storage 9.High Initial Cost 10.Solar Panels Could DamageYour Roof
  17. BUBT Building–1 solarpanel figure-1
  18. BUBT Building –1 solar panel figure -2
  19. Application of solar Energy • Water heating • Air heating for agricultural and industrial applications • Heating and cooling of building • Cold storage for preservation of food • Cooking of food • Green houses • Distillation of water • Water pumping • Solar furnaces • Power generation • Solar Photovoltaic
  20. Solar panel impact on environment • Since there are 1,000 solar panels in the array, each saves around 3.3 metric tons of CO2-eq during the 25-year service life. In addition to Solar panels fight global warming by producing electricity that keeps us from burning greenhouse gas-producing fossil fuels.
  21. Space Based solar panel vs conventional solar panel efficiency • These panels can reach up to around 34% efficiency vs. the 15- 20% that mostcommercial solar panels can reach. Satellites in space are also equipped with solar panels that can follow the direction of the sun to maximize their absorption of sunlight
  22. Solarpowerin China • As the most populous country in the world, China also produces the most solar energy internationally. While only accounting for roughly 3.5%of the country’s total power generation in 2020, solar power in China has grown tremendously year over year since 2011, when government incentives were first introduced.
  23. Contribution of solar Energy to power generation in China
  24. Contributionof solarEnergyto powergenerationin Germany
  25. Contribution of solar Energy to power generation in USA
  26. Contribution of solar Energy to power generation in Bangladesh
  27. SOLAR HOME SYSTEM POTENTIAL IN BANGLADESH • Bangladesh is situated between20.30-20.38 degrees north latitude and 88.04-92.44degrees east which is an ideal area for solar energy. Utilization of solar energy potential is very significant for the impact analysis of SHS in our country. Daily average solar radiation varies between 4-6.5 KWh per square meter. We can get maximum amount of radiation on March-April and minimum from December-January. According to recent studies, yearly average insulation availability in Dhaka is 1.73MWhper square meter on a horizontal surface and 1.86MWhper square meter on a tilted surface. Againthe annual amount of radiation is varies from 1840-1575KWh/m2 which is 50- 100%more than Europe.
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