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Alternate of Source of Energy. Mehwish Nomani Faryal Tariq Sumaiya Hassan Iman Saeed. Solar Energy. Energy from the Sun Light and radiant heat from the sun also called Solar Power Secondary solar resources Wind Wave Power Hydroelectricity Biomass
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Alternate of Source of Energy Mehwish Nomani Faryal Tariq Sumaiya Hassan Iman Saeed
Energy from the Sun • Light and radiant heat from the sun also called Solar Power • Secondary solar resources Wind Wave Power Hydroelectricity Biomass • The Earth receives 174 petawatts (PW) of external solar radiation at the upper atmosphere. • Approx 30% reflects back to the space the rest is absorbed by: Clouds Oceans Land Masses
Applications of Solar Energy • Architecture and urban planning Solar energy influences the designs of the building. Solar designs uses computers to put together Solar lighting, heating and ventilation systems • Agriculture and Horticulture Use of solar energy in order to help grow more plants
Solar Lighting Day lighting system collects and distributes sunlight to provide interior illumination • Solar Thermal Low, high and medium temperature collectors • Low = flat plates generally used to heat swimming pools • Medium = also usually flat plates but are used for creating hot water for residential and commercial use • High = concentrate sunlight using mirrors or lenses and are generally used for electric power production - used for water heating, space heating, space cooling
Fixed flat plate PV Single axis tracking PV
What is Natural gas? • Colorless, shapeless, and odorless type of gas • Flammable mixture of hydrocarbon gases which is mainly of methane • Consists of oxygen, nitrogen, ethane, propane, butane and pentane. • Used for heating homes, cooking and running appliances • Measured by the volume it takes up at normal temperatures and pressures
History • 1626- natural gas was discovered and identified in America • Britain- the first country to market the use of natural gas • Around 1785- natural gas produced from coal 1859- Colonel Edwin Drake dug the first well hitting oil and natural gas at 69 feet below the surface of the earth • 19th century- natural gas was used as a source of light
Where is natural gas found? Found underneath the surface of the Earth It will rise towards the surface of through loose, shale type rock and other material
How Much Natural Gas is there? • World’s Natural Gas. December 2006
What is Hydroelectric power? • Use of flowing water to create electricity is called hydroelectric energy. • Comes from the natural flow of water • Renewable energy source dependent upon the hydrologic cycle of water
How does it work? The energy is produced by the fall of water turning the blades of a turbine. • Example: Dams Video Clip
Hydroelectric Power in Canada • Advantages: • Clean • Domestic • Renewable source of energy • Provides inexpensive • electricity • Produces no pollution • Does not destroy water during the production of electricity
Biofuels are fuels derived from: - Living Organisms - Organic or food waste products • Must consist of more than 80% of reusable materials. • They are a source of solar energy (photosynthesis process)
Pros of Biofuels • Positives: Modern Diesel Engines = less noise, less pollution, more fuel efficiency and greater acceleration in vehicles. • Waste vegetable oils = free source of bio-waste = cheaper fuel and better environment
Cons of Biofuels • Negatives: The Food and Agriculture Organization of UN shows that the quick increase in the liquid biofuels might be threatening to the lives of rural women (farmers)
Types of Biofuels • Biodiesel was the first alternative source of energy. Can be used in existing vehicles (Bio ethanol) • Biogas is an alternative for natural gas. Produced from either plant of animal waste. • Biomass is wood residue or excess straw being burnt to provide heat Biofuel Videos
CAREERS! • Solar Energy: • Agricultural Advisor • Architectural Engineer • Natural Gas: • Petroleum Engineers • Rotary Drillers • Biofuels: • Biofuel Chemist • Biofuels Bioprocess Engineer • Hydroelectricity: • Hydroelectric Engineering Manager • Hydroelectric project Electrician Courses: Math English Calculus Biology Chemistry Bio-Chemistry Technology Physics
Bibliography: • http://en.wikipedia.org/wiki/Solar_energyhttp://www.eia.doe.gov/kids/energyfacts/sources/renewable/solar.htmlhttp://www.engineeringk12.org/students/What_Is_Engineering/Engineering_Alphabet/Architectural_Engineering/default.php • http://www.pge.com/microsite/safety_esw_ngsw/ngsw/more/careers.html • http://www.naturalgas.org/index.asp • http://www.careercruising.com/CASchool/SchoolProfile.aspx?LoginID=2da6ada9-2403-4af8-9464-98237c000bb8-&SchoolCode=ABC12&Language • www.canren.gc.ca/tech_appl/index.asp?CaId=4 - 50k • en.wikipedia.org/wiki/Hydroelectricity - 116k • www.darvill.clara.net/altenerg/hydro.htm - 24k • http://www.alternative-energy-news.info/technology/biofuels/