solar energy presentation

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Solar Energy Solar Energy By: Abbas By: Abbas BH15500437 BH15500437 Bilal Bilal Osama Osama

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Page 1: Solar energy presentation

Solar EnergySolar Energy

By: Abbas By: Abbas BH15500437BH15500437BilalBilal

Osama Osama

Page 2: Solar energy presentation

Alternative Energy Sources Alternative Energy Sources - Wind- Wind

Advantages: Friendly to surrounding environments

No fossil fuels being burnt Takes up less space then the average power station

Only occupies a few square meters for the base Land around the turbine can be used for other purposes such as agriculture

Newer technology makes extracting energy from wind more efficient Turbines for wind can be modified in size for the needs of the surrounding

Also can be modified based on the population it is supporting Combined with solar power energy, can be a great steady source of incoming energy Renewable

Page 3: Solar energy presentation

Wind Energy’s Wind Energy’s DisadvantageDisadvantage

Unreliable wind comes and goes at its own rate Sometimes the wind can be too weak in certain regions

Produces a lot less electricity then fossil fuel Many turbines need to be constructed

Expensive construction Potentially damages environment while building the turbines

Amount of noise a turbine makes: similar to a small jet engine Some argue it mars the beauty of nature

Page 4: Solar energy presentation

Alternative Energy Sources Alternative Energy Sources - - Clean Coal TechnologyClean Coal Technology Advantages: Does not release carbon

dioxide into the atmosphere Easy to dig up and produce We can continue to use coal

as we always did for a couple hundred more years since we are putting all the carbon dioxide back into the ground

Not as expensive of a project as wind or water power

Coal miners can keep their jobs

Page 5: Solar energy presentation

Clean Coal TechnologyClean Coal Technology’s ’s DisadvantageDisadvantage Other forms of pollutions besides carbon dioxide will still be emitted

Selenium and arsenic for example Governments will be reluctant to spend money on research into renewable technologies like solar, wind or water power Many scientists are still a little skeptical that clean coal is truly cleaner then regular coal, since there is a chance carbon dioxide can escape the ground and get back into the atmosphere

Page 6: Solar energy presentation

Alternative Energy Sources Alternative Energy Sources – Fossil Fuel– Fossil Fuel

Advantages: Good availability. Simple process to produce heat or electricity. Inexpensive. Easy to distribute around the world.

Disadvantages: Most likely source of global warming, burning fossil fuels is contributed to this. Prices fluctuate based on the politics of region where it is coming from. Acid rain can be produced because of fossil fuel. Nonrenewable source.

Page 7: Solar energy presentation

Alternative Energy Sources Alternative Energy Sources - - Geothermal energyGeothermal energy

Advantages: It is globally sustainable. Geothermal energy is safer then fossil fuels. It’s a “base-load” energy source. The power plants take up very little room.

Page 8: Solar energy presentation

Geothermal energyGeothermal energy’s ’s DisadvantagesDisadvantages Disadvantages:

Greenhouse gas emissions and toxic chemical emissions. Hot water from geothermal sources has traces of dangerous elements (mercury, boron, arsenic, antimony) Localized depletion (geothermal sites eventually will lose heat and water) Cause geological instability, causing seismic events to take place. Expensive, drilling to tap the resource alone accounts for over half of the costs to erect a geothermal energy site.

Page 9: Solar energy presentation

Alternative Energy Sources Alternative Energy Sources – Hydro Power– Hydro Power

Advantages: Electricity can be produced at a constant rate. If electricity is not needed, the sluice gates can be shut, stopping electricity generation. The water can be saved for use another time when electricity demand is high. Designed to last many decades. The lake that forms behind the dam can be used for water sports and leisure / pleasure activities. The lake's water can be used for irrigation purposes. When in use, electricity produced by dam systems do not produce green house gases.

Page 10: Solar energy presentation

Hydro Power’s Hydro Power’s DisadvantagesDisadvantages

Dams are extremely expensive to build and must be built to a very high standard. They must operate for many decades to become profitable. The flooding of large areas of land can destroy the natural environment People living in villages and towns that are in the valley to be flooded, must move out. The building of large dams can cause serious geological damage.

Hoover Dam in the USA triggered a number of earth quakes and has depressed the earth’s surface at its location. In the past old dams have been known to be breached (the dam gives under the weight of water in the lake)

Dams built blocking the progress of a river in one country usually means that the water supply from the same river in the following country is out of their control. This can lead to serious problems between neighboring countries.

Building a large dam alters the natural water table level. Aswan Dam in Egypt has altered the level of the water table. This is slowly leading to damage of many of its ancient monuments as salts and destructive minerals are deposited in the stone work from ‘rising damp’ caused by the changing water table level.

Page 11: Solar energy presentation

Alternative Energy Sources Alternative Energy Sources – Nuclear Energy– Nuclear Energy

Advantages: Does not require a lot of space. Nuclear is the most concentrated form of energy by far. Clean, does not pollute in same ways fossil fuel does (read more about this in disadvantages.)

Disadvantages: Fission meltdowns, very very deadly, See Chernobyl for example. Produces radiation which is harmful to human health.

Potentially can kill people. These nuclear reactors will only last for 40 to 50 years. Contrary to popular belief, nuclear energy is NOT a renewable energy source.

Page 12: Solar energy presentation

Solar EnergySolar Energy Definition: radiant light and heat from the sun that is used and transformed into different types of energy. Most abundant source of renewable energy on the planet Production of solar energy uses heat engines and photovoltaic The most common way of collecting solar energy is by use of solar panels energy storage methods:

paraffin wax glaubers salt

salts are good low cost high specific heat levels and can deliver the right temperature heat to conventional heating systems

Page 13: Solar energy presentation

Advantages/ DisadvantagesAdvantages/ Disadvantages Advantages

Long lasting Can be used anywhere Silent and non polluting Solar cells can be added when there is demand for more energy Sunlight that reaches the earth everyday is 200,000 times the total electrical energy generated everyday Solar power production is growing rapidly It is a secure type of energy

Disadvantages High initial cost Takes a lot of solar panels to be efficient initially Can only generate during the day Cost about twice of what fossil fuels do

Page 14: Solar energy presentation

Facts about Solar PowerFacts about Solar Power

passive or active solar: Active; photovoltaic panels and solar thermal collectors Passive; buildings pointed to the sun, spaces within buildings

with rooms that circulate air, and building with materials that have a favorable thermal mass

Solar wind and biomass are the top consumed type of energies from humans

Biomass could lead solar in terms of consumption, but it is a cause of global warming and is bad for agriculture

http://www.youtube.com/watch?v=AmWrGPKcMNM

Page 15: Solar energy presentation

ApplicationsApplications Houses: solar lighting, heating and ventilation systems pumps fans and windows

Use natural solar lighting when building Hybrid solar lighting: faces mirrors track the sun throughout the day and use optical fibers to distribute it Water heating: china and Cyprus have the most amount of solar thermal water heaters Farming:

greenhouses turn solar energy to hear Photovoltaic cells: collect photons and release electrons as energy Made of silicon

as small as a calculator and as large as pods in desert parabolic discs

Page 16: Solar energy presentation

Solar Energy in Daily LifeSolar Energy in Daily Life Water heating system

(Schematic diagram ) Basic Theory: Collect the

solar radiation, transfer it to heat energy and apply in our daily life.

As the solar panel collect the heat from the solar and transfer it to the water inside the pipe, the water is heated and outflow from the other pipe.

Then, we may use the hot water in the showers, warming machine.

Page 17: Solar energy presentation

Solar Energy for Industrial Solar Energy for Industrial ApplicationsApplications

Basic Theory of Solar power plant (1). Sunlight → Heat →

Electricity: transfer the heat from the solar thermal collector to working medium steam, then the steam gas turbine engine drive the electric generator to generate electricity.

(2) Sunlight → Electricity: Due to the photovoltaic effect, we may trans the light to electric energy directly.

The Electricity may be used for microwave, TV, radio, telemetry, radio telephones and industrial production.

Page 18: Solar energy presentation

BibliographyBibliography Wind Energy: http://www.clean-energy-ideas.com/articles/advantages_and_disadvantages_of_wind_energy.html Fossil Fuels: http://library.thinkquest.org/20331/types/fossil/advant.html Clean Coal Technology: http://wiki.answers.com/Q/What_are_the_advantages_and_the_disadvantages_of_using_clean_coal_technology Geothermal: http://wiki.answers.com/Q/What_are_the_advantages_and_disadvantages_of_using_geothermal_energy Hydropower: http://www.technologystudent.com/energy1/hydr2.htm Nuclear Energy: http://gvctemp18.virtualclassroom.org/Nenergy/adva.htm http://science.nasa.gov/headlines/y2002/solarcells.htm http://zhidao.baidu.com/question/24339788.html?si=5 Movie: http://www.youtube.com/watch?v=AmWrGPKcMNM

Page 19: Solar energy presentation

Bibliography - PicturesBibliography - Pictures Reach for sun: http://toolguy.com/solar-powered.jp wind energy: http://i.treehugger.com/images/2007-2-15/wind_turbine.jpg cleancoal: http://saferenvironment.files.wordpress.com/2008/11/cleancoal.jpg clean-coal: http://www.inkcinct.com.au/web/cartoons/2007/2007-119-clean-coal.jpg Schematic diagram: http://saferenvironment.wordpress.com/2009/02/02/solar-power-

%E2%80%93-sustainable-green-energy-to-protect-our-economy-and-environment/ Geothermal Energy: http://academic.evergreen.edu/g/grossmaz/geowells.jpeg Fossil Fuels:

http://www.globalwarmingimages.net/gallery/category_images/fossil_fuel.jpg wind energy2: http://cdn.content.compendiumblog.com/uploads/user/d741c03c-09e5-

48e2-8b62-05ae85ffc63d/5359811a-5863-4e70-a91a-37d3f2c3b2dd/Image/31d231be57781b93a6cb4a9f760b0773.jpg

geothermal-power-plant: http://www.treehugger.com/geothermal-power-plant-i01.jpg hydro power plant: http://www.emt-india.net/process/power_plants/img/hydro2.gif HydropowerLiujiaxiaGorge:

http://ahoy.tk-jk.net/RiverImages/HydropowerLiujiaxiaGorge.jpg nuclear power: http://www.oncor.com/images/knowledgecollege/h20.jpg nuclear energy: http://nl.toonpool.com/user/1223/files/nuclear_energy_149645.jpg Dish_Stirling_Systems_of_SBP_in_Spain:

http://upload.wikimedia.org/wikipedia/commons/6/64/Dish_Stirling_Systems_of_SBP_in_Spain.JPG

Page 20: Solar energy presentation

Bibliography – Pictures2Bibliography – Pictures2

Solar_two: http://upload.wikimedia.org/wikipedia/commons/b/b6/Solar_two.jpg

Solar_Evaporation_Ponds%2C_Atacama_Desert: http://upload.wikimedia.org/wikipedia/commons/d/df/Solar_Evaporation_Ponds%2C_Atacama_Desert.jpg

Array1: http://www.southernviewenergy.com/blog/wp-content/uploads/2009/10/Array1.jpg

solar_power_molten_salt: http://greenernews.files.wordpress.com/2009/07/solar_power_molten_salt.jpg