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filionmar99

Biofuel - Wikipedia, the free encyclopedia - 1 views

en.wikipedia.org/Biofuel

biofuel current

shared by filionmar99 on 13 Mar 12 - Cached
  • Biodiesel is made from vegetable oils and animal fats. Biodiesel can be used as a fuel for vehicles in its pure form
  • Most transportation fuels are liquids, because vehicles usually require high energy density, as occurs in liquids and solids.
  • First generation biofuels 'First-generation' or conventional biofuels are biofuels made from sugar, starch, and vegetable oil.
  • ...4 more annotations...
  • In 2010 worldwide biofuel production reached 105 billion liters (28 billion gallons US), up 17% from 2009, and biofuels provided 2.7% of the world's fuels for road transport, a contribution largely made up of ethanol and biodiesel.[2] Global ethanol fuel production reached 86 billion liters (23 billion gallons US) in 2010, with the United States and Brazil as the world's top producers, accounting together for 90% of global production. The world's largest biodiesel producer is the European Union, accounting for 53% of all biodiesel production in 2010.[2] As of 2011, mandates for blending biofuels exist in 31 countries at the national level and in 29 states/provinces.[3] According to the International Energy Agency, biofuels have the potential to meet more than a quarter of world demand for transportation fuels by 2050.[4]
  • Examples include wood, sawdust, grass trimmings, domestic refuse, charcoal, agricultural waste, non-food energy crops, and dried manure.
  • In 2010 worldwide biofuel production reached 105 billion liters (28 billion gallons US), up 17% from 2009,[3] and biofuels provided 2.7% of the world's fuels for road transpor
  • Global ethanol fuel production reached 86 billion liters (23 billion gallons US) in 2010, with the United States and Brazil as the world's top producers, accounting together for 90% of global production.
  • nelsonbri98 on 15 Mar 12
     
    Bioethano
handste99

Revolution Green: A True Story of Biodiesel in America - 0 views

www.revolutiongreen.com/biodiesel.html

infrastructure

shared by handste99 on 22 Oct 12 - No Cached
  • There are over 180,000 fueling stations nationwide. About 40% of those service petroleum diesel fuel, and less than 1% service biodiesel.
  • Biodiesel is simple to use and requires no costly engine conversions or infrastructure changes to the current delivery system of diesel fuel.
dpurdy

Succeeding in the 21st Century -- Skills and Abilities for the Future TCA paper - 0 views

www.coedu.usf.edu/...tca_paper.htm

all

shared by dpurdy on 24 Oct 12 - No Cached
  • The exchange of thoughts and ideas by speech or writing
  • Cooperative effort within a group in order to achieve a desired goal
  • To give rise to imaginative or artistic abilities as well as the ability to find novel solutions to problems
  • ...5 more annotations...
  • Training or control over one's conduct for personal improvement as well as the ability to forgo immediate pleasure for long term goals
  • The ability to discern factual from opinionated information
  • The effective use of grammatical rules and guidelines in order to express one's ideas in correct form
  • bility to use computer technology effectively, including word-processing and spreadsheets
  • The ability to use the defined principles of logic and effectively engage in abstract thinking to achieve mastery or understanding
smithree98

EIA Energy Kids - Hydrogen - 2 views

www.eia.gov/...energy.cfm

hydrogen fuel benifits

shared by smithree98 on 03 Nov 11 - No Cached
  • Like electricity, hydrogen is a secondary source of energy. It stores and carries energy produced from other resources (fossil fuels, water, and biomass).
  • ydrogen is the simplest element. Each atom of hydrogen has only one proton. It is also the most plentiful gas in the universe. Stars like the sun are made primarily of hydrogen. The sun is basically a giant ball of hydrogen and helium gases. In the sun's core, hydrogen atoms combine to form helium atoms. This process — called fusion — gives off radiant energy.
  • Hydrogen gas is so much lighter than air that it rises fast and is quickly ejected from the atmosphere. This is why hydrogen as a gas (H2) is not found by itself on Earth. It is found only in compound form with other elements. Hydrogen combined with oxygen, is water (H2O). Hydrogen combined with carbon forms different compounds, including methane (CH4), coal, and petroleum.
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  • Hydrogen has the highest energy content of any common fuel by weight
  • Like electricity, hydrogen is an energy carrier and must be produced from another substance. Hydrogen is not currently widely used, but it has potential as an energy carrier in the future. Hydrogen can be produced from a variety of resources (water, fossil fuels, or biomass) and is a byproduct of other chemical processes.
  • Steam reforming is currently the least expensive method of producing hydrogen and accounts for about 95% of the hydrogen produced in the United States. This method is used in industries to separate hydrogen atoms from carbon atoms in methane (CH4). But the steam reforming process results in greenhouse gas emissions that are linked with global warming.1
  • Electrolysis Creates No Emissions but Is Costly Electrolysis is a process that splits hydrogen from water. It results in no emissions, but it is currently an expensive process. New technologies are currently being developed.
  • Hydrogen fuel cells make electricity. They are very efficient, but expensive to build. Small fuel cells can power electric cars. Large fuel cells can provide electricity in remote places with no power lines.
  • Portable fuel cells are being sold to provide longer power for laptop computers, cell phones, and military applications.
  • smithree98 on 23 Oct 12
     
    tells all about hydrogen
hughesacam99

Pros & Cons of Wave Energy | eHow.com - 0 views

www.ehow.com/045_pros-cons-wave-energy.html

pollution pros wave energy

shared by hughesacam99 on 23 Oct 12 - No Cached
  • Unlike fossil fuels, wave power doesn't cause air pollution.
hughesacam99

Wave Energy Pros and Cons - Tidal and Ocean Wave Power Still Niche Technologies | Green... - 2 views

www.greenworldinvestor.com/...power-still-niche-technologies

pros wave energy

shared by hughesacam99 on 22 Oct 12 - No Cached
  • Wave Power is quite immature,costly and unproven in large scale. While some companies have made good progress, the technology remains largely unproven and has only been put to actual test in pilot cases.
  • While Wave Energy has been known since the 1700s the progress has been extremely slow.
  • One of the biggest problems of Renewable Power is that it is intermittent in nature as it generates energy only when there are waves. This problem can be solved with energy storage however this leads to additional costs.
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  • Severe Weather like Storms and Typhoons can be quite devastating on the Wave Power Equipment especially those place on the Sea Floor.
  • This is a disadvantage which is common to all  the 3 types of Water based Energy that is Tidal, Hydro and Waver Energy. Some forms of Energy are just better suited to some places.
  • Wave Power generate power quite far away from the consumption of electricity. Transportation of Wave Energy can be quite cumbersome and expensive. Some Wave Energy Generators are converting power at the bottom of the ocean or far away from the shoreline. Moving that power towards where it is used can be difficult.
  • The sight of wave generators around the shoreline can look quite ugly and cause loss of tourism potential around shorelines. Also local residents can have problems even with wave power equipment which is not far offshore. The Cape Wind Energy project off the shore of Massachusetts has been delayed by over 10 years as it has drawn serious objections from the owners of coastal homes about loss in their property values.
  • A Wave Power Plant can cost around$6-10 million million to be spent in building 1 Megawatt.
  • Waver Energy does not require any fuel like most other sources of energy
  • Wave Energy is powered by the waves of the ocean which are totally free just like Wind and Sunlight.
  • Wave Energy Generators can be installed in various sizes with as little as 1 MW. This is not possible for other energy forms which require a minimum large size such as Coal, Nuclear etc.
ackleysam99

Why We Need Solar Power - 0 views

www.getmysolartoday.com/why-we-need-solar-power

infrastructure

shared by ackleysam99 on 23 Oct 12 - No Cached
  • When we look at what is available today in solar equipment it has come a long way  but still needs a long way to go.
  • ater they installed a solar hot air collector; this unit worked awesome during the winter months. It would raise the temperature of the home to the mid 80’s during the winter if you continued to let it run.
  • Yet each year we are becoming more energy efficient. The growing problem that really disturbs me is that while I consume less energy then I did in previous years my energy bills continue to climb at a record pace.
hughesacam99

Wave Energy Pros and Cons - Energy Informative - 0 views

energyinformative.org/wave-energy-pros-and-cons

pros wave energy informative

shared by hughesacam99 on 23 Oct 12 - No Cached
  • Harnessing wave energy comes without the emission of harmful green house gases. This is the main motivation factor behind further development of this way of power generation.
  • Like with most green energy sources, wave power is also renewable. Since this energy source ultimately comes from the heat energy that is emitted from the sun, it will not disappear for some time – in fact, several billion years or as long time it takes for the sun to burn out.
  • The energy density is typically around 30-40 kW for every meter (2.2 feet) of wave along the shore. As we go further into the ocean 100kW for every meter is not uncommon.
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  • Waves are hardly interrupted and almost always in motion.
  • This makes generating electricity from wave energy a reasonable reliable energy source
  • It should be mentioned that the amount of energy that is being transported through waves does vary every year and from season to season. On the northern hemisphere, the average value of November and May could be different with a factor of two or more.
hughesacam99

Wave Energy: Pros and Cons - 0 views

www.smartenergyshow.com/wave-energy-pros-and-cons.html

pros wave energy informative

shared by hughesacam99 on 23 Oct 12 - No Cached
  • wave power is one of the most researched areas of renewable energy.
  • Wave power results from the transport of energy by ocean surface waves and its capture into systems that can be therefore used for useful applications
  • Some of these applications include electricity generation, the pumping of water, or water desalination.
filionmar99

Uses of Biofuel | National Geographic - 1 views

greenliving.nationalgeographic.com/uses-biofuel-2775.html

biofuel current

shared by filionmar99 on 13 Mar 12 - No Cached
  • Even normal
  • gasoline vehicles can operate on a 10 percent ethanol blend with no problems. Diesel cars and trucks can run on biodiesel, though older models may need to have their fuel lines and gaskets replaced with modern synthetic materials, since biodiesel is a solvent
  • and use of biofuels to power aircraft is expected to increase substantially in the next decade. Because current biofuel production relies heavily on crops that also function as food or livestock feed, emphasis is on developing new sources that don't cause deforestation and compete with food production
  • ...1 more annotation...
  • Small engines, like those found in lawn mowers and chainsaws, can use ethanol blends up to 10 percent without problems. The barrier to using higher blends, up to 20 percent, has more to do with manufacturers' warranties than limitations of the technology
  • filionmar99 on 23 Oct 12
     
    this gives good info about the current energy being generated in the us today
chadwickall99

Basics of Wind Energy - 1 views

zebu.uoregon.edu/...l14.html

wind what

shared by chadwickall99 on 23 Oct 12 - No Cached
  • Kinetic Energy of wind
chadwickall99

How the Air Moves Forming Winds - 0 views

www.technologystudent.com/...wind1.htm

shared by chadwickall99 on 23 Oct 12 - No Cached
  • Wind power is generated by moving air. As the sun heats the land, the air above also warms and rises. Cold air then replaces the rising air. This creates the winds that we feel most days of the year.
  • If you visit the seaside or coastal area you will probably find that the weather is more breezy or windy than inland. This is because the warm air rises over the land and cold air over the sea replaces it.
  • chadwickall99 on 23 Oct 12
     
    "As the sun heats the land, the air above also warms and rises. Cold air then replaces the rising air. This creates the winds that we feel most days of the year. "
carrowluk99

Group items matching "fuel cells potential" in title, tags, annotations or url - qmstec... - 0 views

groups.diigo.com/...search

fuel cells location

shared by carrowluk99 on 23 Oct 12 - No Cached
  • carrowluk99 on 23 Oct 12
     
    because there is no source, hydrogen is not limited by its location
dpurdy

Tidal Energy - 1 views

www.tech-faq.com/tidal-energy.html

tidal form sustainable how what

shared by dpurdy on 22 Oct 12 - No Cached
  • Tidal energy is energy that can be obtained from the changing sea levels. In other words, tidal energy is a direct result of tide shifting from low to high.
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