1 / 14

ARC 344 ENVIRONMENT AND MAN: CAUSE AND EFFECT

RENEWABLE ENERGY SOURCES DIRECT USES,INDIRECT USES,NON-SOLAR. Middle East Technical University Northern Cyprus Campus. ARC 344 ENVIRONMENT AND MAN: CAUSE AND EFFECT. SERDAR GOKHAN YAZOGLU CIVIL ENGINEERING 1615392. INTRODUCTION RENEWABLE ENERGY SOURCES SOLAR ENERGY:DIRECT USES

nigelm
Download Presentation

ARC 344 ENVIRONMENT AND MAN: CAUSE AND EFFECT

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. RENEWABLE ENERGY SOURCES DIRECT USES,INDIRECT USES,NON-SOLAR Middle East Technical University Northern Cyprus Campus ARC 344 ENVIRONMENT AND MAN: CAUSE AND EFFECT SERDAR GOKHAN YAZOGLU CIVIL ENGINEERING 1615392

  2. INTRODUCTION • RENEWABLE ENERGY SOURCES • SOLAR ENERGY:DIRECT USES • Solar thermalenergy • Solar photovoltaics • SOLAR ENERGY:INDIRECT USES • Hydropower • Windpower • Wavepower • Biomassenergy • NON-SOLAR RENEWABLES • Tidalenergy • Geothermalenergy • CONCLUSION OUTLINE

  3. INTRODUCTION • Renewable resources are part of our natural environment and form our eco-system. • Renewable energy is energy which comes from natural resources such as sunlight,wind,rain,tides, and geothermal heat, which are renewable. • Use as much or as little of the renewable electricity you're able to generate without feeling guilty for any wastage. • A variety of renewable energy sources are readily available. • The sun, wind, tides, and geothermal activity are all renewable forms of energy. • Government grants may be available for some natural energy projects depending on your location.

  4. Solar thermal energy • Our sun produces 400,000,000,000 watts of energy every second. • The belief is that it will last for another 5 billion years. • Solar thermal energy, which is the oldest way of tapping powerfrom the sun, has been used for years in heating applications for households. http://www.zmescience.com/research/solar-thermal-energy • Advantages of Solar ThermalEnergy • It is allcleanenergy. • Solar power plant does not use any fuel. • Inexpensivewaterheating. • Inexpensivehomeheating. • Unlimitedsource of energy. • Zeroharmfulcarbondioxideemissions. • Solar thermal plants will be more economicalthan plants fueled by oil or natural gas. http://science.howstuffworks.com/

  5. Solar photovoltaic ENERGY • Photovoltaic(PV) is a method of generatingelectricalpower by converting solar radiationintoelectricity using semiconductors. • Solar cellsarenowuse in caculators, watches, radios, poweringstreetsignsandtrafficlights. http://www.our-energy.com/world_needs_stronger_renewable_energy_sector.html • Advantages of Solar PhotovoltaicEnergy • Generates free energy from the sun. • Has no moving parts to break down thus requiring minimal maintenance. • Photovoltaic (PV) cells are modular, you can start with a small system and expand as your needs increase. • Systems have a long life & durability. Cells last 25-30 years. • PV cells make no noise and give off no exhaust. http://www.theheatingbusiness.co.uk/renewable-energy/solar-photovoltaic-heating.php

  6. hydropower • Hydropower traces its roots to the water wheels used by ancients Greeks to grindwheatintoflour. • China’s Three Gorges Dam is the largest electricity-producing power plant in the world. • By harnessing the power of rivers and oceans, scientists have been able to create a sustainable energy source from water. • Advantages of Hydropower • Environment friendly. • Less expensive. • Maximum output achieved. • Jobs are created in hilly regions. • Low maintenance (minimum staff required). • Disadvantages of Hydropower • Dams are extremely expensive to build and must be built to a very high standard. • The flooding of large areas of land means that the natural environment is destroyed. • The building of large dams can cause serious geological damage. • Building a large dam alters the natural water table level. http://www.findingdulcinea.com/guides/Reference/Alternative-Energy/Hydropower.html

  7. WIND POWER • Wind power is the conversion of windpowerinto a useful form of energy ,such as usingwindturbinestomakeelectricity. • A large windfarm may consist of several hundred individual wind turbines which are connected to the electric power transmissionnetwork. • Worldwide there are now many thousands of wind turbines operating, with a total nameplate capacity of 194,400 MW. • Wind power can be an excellent complement to a solar power system. http://www.telegraph.co.uk/earth/earthnews/5445929/Wind-turbines-on-public-sector- • Advantages of WindPower • Wind power, as an alternative to fossil fuels. • Plentiful • Renewable • Widelydistributed. • Produces no greenhouse gas emissions during operation. • Useslittleland. • Disadvantages of Wind Power • Wind turbines Interfere with Television Reception. • Wind turbines kill birds. • Wind turbines are noisy. • Wind itself is not dependable.

  8. WaVepower • Wave power is the transport of energy by ocean surface waves, and the capture of that energy to conduct electricity. • Waves are caused by the wind blowing over the surface of the ocean. • In many areas of the world, the wind blows with enough consistency and force to provide continuous waves. • There is tremendous energy in the ocean waves. • There are three main categories that wave power can be split into, these are near shore, at shore and off shore. http://ocsenergy.anl.gov/includes/dsp_photozoom.cfm?imgname • Advantages of Wave Power • Does not generate pollution. • Does not generate solid waste. • Reliable source of energy as water current patterns are predictable. http://www.our-energy.com/ocean_energy.html

  9. BIOMASS ENERGY • Climate change is one of the most difficult challenges in world's history. • World is constantly looking at possible options to decrease our dependence on fossil fuels. • Fossil fuels when burned create harmful carbon emissions that end up in Earth's atmosphere, and contribute to global warming phenomenon. • Bioenergy is an excellent renewable energy source if regulated and used properly. • BIOFUELS • Bio-oil • Biodiesel • Bioethanol • Biogass http://prosandconsbiomassenergy.org/pros-and-cons-biomass-energy/

  10. BIOMASS ENERGY Disadvantages of Biofuels • More land must be set aside to make biofuels. Natural habitats (flora and fauna) may be lost as a result. • Burning corn may release high concentrations of nitrous oxide into the air, which is a greenhouse gas. • The production and transport of the biofuel to gas stations is very complex, which involves a lot of costs. • Advantages of Biofuels • Biofuels are cheaper than fossil fuels. Many governments are now offering tax incentives to buy greener cars that run on biofuels. • Biofuels are emit less particulate pollution than other fuels, especially diesel. • Biofuels are renewable sources of energy as you can just keep producing more. • Itcan help prevent engine knocking. • Doesn’t require any radical changes to switch to the use of biofuels- unlike the difficulties in switching to other renewable energy sources such as solar andwind power.

  11. TIDAL ENERGY • Tidal energy is one of the oldest forms of energy used by humans. • Tide mills consisted of a storage pond, filled by the incoming (flood) tide through a sluice. • Emptied during the outgoing tide through a water wheel. • The tides turned waterwheels, producing mechanical power to mill grain. •  Tidal power is non-polluting, reliable and predictable. • Tidal barrages, undersea tidal turbines - like wind turbines but driven by the sea - and a variety of machines harnessing undersea currents are under development. • Unlike wind and waves, tidal currents are entirely predictable. • Tidal energy is a renewable source of electricity which does not result in the emission of gases responsible for global warming. http://www.smartplanet.com/blog/intelligent-energy/animal-magnetism-how-wave-tidal-energy-devices

  12. GEOTHERMAL ENERGY • Geothermal energy is the heat from the Earth. • It's clean and sustainable. Resources of geothermal energy range from the shallow ground to hot water. • Hot rock found a few miles beneath the Earth's surface,and down even deeper to the extremely high temperatures of molten rock called magma. • People have made use of geothermal energy in the form of hot springs for centuries. • The first attempt to generate electricity from this energy source did not occur until the 20th century. http://news.discovery.com/earth/geothermal-hot-times-for-an-old-energy-source-111121.html • There are three types of geothermal energy • Dry Steam:Power plants using dry steam systems were the first type of geothermal power generation plants built. • Flash Steam:Flash steam plants are the most common type of geothermal power generation plants in operation today.  • Binary Cycle:Binary cycle geothermal power generation plants differ from dry steam and flash steam systems because the water or steam from the geothermal reservoir never comes in contact with the turbine/generator units.

  13. CONCLUSION • ADVANTAGES OF RENEWABLE ENERGY SOURCES • Renewable energy sustainable and so will never run out. • Renewable energy produces little or no waste products such as carbon dioxide or other chemical pollutants. • Renewable energy has minimal impact on the environment. • Renewable energy projects can also bring economic benefits. • DISADVANTAGES OF RENEWABLE ENERGY SOURCES • Renewable energy is that it is difficult to generate the quantities of electricity. •  Renewable energy often relies on the weather for its source of power.  • It is a new technology and as such has extremely large capital cost. http://www.bellona.org/imagearchive http://www.bellona.org/imagearchive

  14. References • Boyle,G. , Everett,B. ,andRamage,J. (2010) EnergySystemsandSustainability.John WileyHighEducationPub. • Boyle,G.(2004)RenewableEnergy.Oxford University Press in association with the Open University in Oxford, New York. • Kruger,P.(2006) AlternativeEnergyResources.John WileyandSonsIncPub. • Pimental,D., andPimental,M.H.(2007)Food, Energy, andSociety.3. Edition. • Quasching,V. (2010)RenewableEnergyandClimateChange.John WileyandSons, Ltd. • Sangster,A.J.(2010)Energyfor a WarmingWorld.SpringerPub.

More Related