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Soymet to distribute biofuels for engines - 0 views

bulktransporter.com/...n_soymet_distribute_biofuels_2 infastructure
shared by pettitmat99 on 22 Oct 12 - No Cached
  • All Soymet biofuel products have zero petroleum toxins and lower emissions. Primary byproducts are carbon dioxide and water vapor. These biodiesel fuels burn cleanly and produce the same amount of energy as conventional diesel fuels.
  • pettitmat99 on 22 Oct 12
     
    Supposedly cleaner but still gives off emissions
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Wind Energy - 0 views

biodiesel.environmentalactiongroup.org/wind.html wind cost infrastructure
shared by stewartlia99 on 22 Oct 12 - No Cached
  • Cons:
  • The purchase and set-up of wind turbines can be expensive
  • Wind turbines require certain constant speeds to be productive (13 mph for large turbines, 9 mph for small turbines)
  • ...1 more annotation...
  • Wind farms can't sustain constant power due to daily and seasonal variance in wind
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Research Report: Is there pollution from tidal energy - 0 views

ultimate-research-assistant.com/ResearchReport.asp tidal pollution cost
shared by ballardeth99 on 22 Oct 12 - No Cached
  • it offers almost unlimited potential at low costs and with no pollution.
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Alternative Fuels Data Center: Biodiesel Production and Distribution - 0 views

www.afdc.energy.gov/...biodiesel_production.html all
shared by pettitmat99 on 22 Oct 12 - No Cached
    • pettitmat99
      pettitmat99 on 22 Oct 12
       
      great photo on the production of biodeisels
  • he production process converts oils and fats into chemicals called long-chain mono alkyl esters, or biodiesel. These chemicals are also referred to as fatty acid methyl esters, and t
  • Biodiesel is produced from vegetable oils, yellow grease, and tallow.
  • ...3 more annotations...
  • Raw or refined plant oil, or recycled greases that have not been processed into biodiesel, are not biodiesel and should be avoided
  • Fats and oils (triglycerides) are much more viscous than biodiesel, and low-level vegetable oil blends can cause long-term engine deposits, ring sticking, lube-oil gelling, and other maintenance problems that can reduce engine life
  • Biodiesel is distributed from the point of production to retail fueling stations by truck, train, or barge.
  • pettitmat99 on 22 Oct 12
     
    good website to find most information on biofuels
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NREL: Learning - Biofuels Basics - 0 views

www.nrel.gov/...re_biofuels.html
shared by janosjus99 on 22 Oct 12 - Cached
  • Unlike other renewable energy sources, biomass can be converted directly into liquid fuels, called "biofuels," to help meet transportation fuel needs
  • Today, ethanol is made from starches and sugars, but NREL scientists are developing technology to allow it to be made from cellulose and hemicellulose,
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Research Report: does solor powers pollution than CO2 when compared to fossil fuels? - 0 views

ultimate-research-assistant.com/ResearchReport.asp pollution
shared by troisichr99 on 22 Oct 12 - No Cached
  • But as much as it poses a health risk, a group of researchers from the National Renewable Energy Laboratory point out that the relative risks are still light when compared to the use of fossil fuels
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Reducing the Cost of Fuel Cells - 0 views

oilprice.com/...ng-The-Cost-Of-Fuel-Cells.html cost hydrogem
shared by brockwaymck99 on 22 Oct 12 - No Cached
  • Most folks don’t realize the depth of the economic problem that fuels cells pose for mass adoption.  Often there are price quotes running in the tens or hundreds of thousands of dollars.  That’s because the catalysts of choice are the noble metals platinum or palladium.  These are very rare metals, more so than gold and have considerable market presence already in the automotive field.
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NREL: Hydrogen and Fuel Cells Research - Renewable Electrolysis - 0 views

www.nrel.gov/...renew_electrolysis.html use renewable sustainable hydrogen
shared by giumarraant99 on 24 Oct 12 - No Cached
  • Renewable electrolysis is a process that uses renewable electricity to produce hydrogen by passing an electrical current through water. Renewable energy sources such as photovoltaics, wind, biomass, hydropower, and geothermal can provide clean, sustainable electricity for our nation
  • Wind turbines can be used to produce hydrogen through a process called renewable electrolysis.
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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. "
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Hydrogen fuel - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Hydrogen_fuel hydrogen fuel form
shared by dpurdy on 24 Oct 12 - No Cached
  • Because pure hydrogen does not occur naturally, it takes energy to manufacture it. There are different ways to manufacture it, such as, electrolysis and steam-methane reforming process.
  • In electrolysis, electricity is run through water to separate the hydrogen and oxygen atoms. This method can be used by using wind, solar, geothermal, hydro, fossil fuels, biomass, and many other resources.
  • The more natural methods of making electricity (wind, solar, hydro, geothermal, biomass), rather than fossil fuels, would be better used as to continue the environment-friendly process of the fuel. Obtaining hydrogen from this process is being studied as a viable way to produce it domestically at a low cost. Steam-methane reforming process extracts the hydrogen from methane. However, this reaction causes a side production of carbon dioxide and carbon monoxide which are greenhouse gases and contribute to global warming.
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Geothermal Basics - Power Plant Costs - 1 views

geo-energy.org/geo_basics_plant_cost.aspx geothermal power plant cost solar wind
shared by haguedav98 on 26 Oct 12 - No Cached
  • According to studies, an economically competitive geothermal power plant can cost as low as $3400 per kilowatt installed.
  • While the cost of a new geothermal power plant is higher than that of a comparable natural gas facility,
  • in the long run the two are similar over time. This is because natural gas construction costs account for only one third of the total price of the facility, while the cost of the fuel at a natural gas facility represents two thirds of the cost
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http://www.nrel.gov/docs/fy06osti/39534.pdf - 0 views

www.nrel.gov/...39534.pdf
shared by smithree98 on 26 Oct 12 - No Cached
    • smithree98
      smithree98 on 26 Oct 12
       
      chart that says how much energy hydrogen produces
    • smithree98
      smithree98 on 26 Oct 12
       
      not just hydyogen
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The Energy of Light - Lesson - www.TeachEngineering.org - 0 views

www.teachengineering.org/view_lesson.php solar form
shared by phinneycha99 on 26 Oct 12 - No Cached
  • Visible light is only one type of EM wave. We use different kinds of electromagnetic waves for many different purposes.
  • phinneycha99 on 26 Oct 12
     
    light is electromagnetic radiation.
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The Basics of Light - 0 views

violet.pha.jhu.edu/...basics.html form solar
shared by phinneycha99 on 26 Oct 12 - No Cached
  • Simply stated, light is nature's way of transferring energy through space.
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HowStuffWorks "How Solar Cells Work" - 0 views

science.howstuffworks.com/...solar-cell.htm solar
shared by smithcol98 on 13 Mar 12 - Cached
  • ough light, they seem to work forever. Y
  • ong as there's
    • smithcol98
      smithcol98 on 13 Mar 12
       
      hi max
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A Basic Overview of Fuel Cell Technology - 0 views

americanhistory.si.edu/...basics.htm fuel cell convert
shared by labrumbra99 on 15 Mar 12 - Cached
  • they generate electricity with very little pollution—much of the hydrogen and oxygen used in generating electricity ultimately combine to form a harmless byproduct, namely water.
  • Scientists and inventors have designed many different types and sizes of fuel cells in the search for greater efficiency, and the technical details of each kind vary
  • in general terms, hydrogen atoms enter a fuel cell at the anode where a chemical reaction strips them of their electrons. The hydrogen atoms are now “ionized,” and carry a positive electrical charge. The negatively charged electrons provide the current through wires to do work. If alternating current (AC) is needed, the DC output of the fuel cell must be routed through a conversion device called an inverter.
  • ...6 more annotations...
  • But in general terms, hydrogen atoms enter a fuel cell at the anode where a chemical reaction strips them of their electrons. The hydrogen atoms are now �ionized,� and carry a positive electrical charge. The negatively charged electrons provide the current through wires to do work. If alternating current (AC) is needed, the DC output of the fuel cell must be routed through a conversion device called an inverter.
  • Every fuel cell also has an electrolyte, which carries electrically charged particles from one electrode to the other, and a catalyst, which speeds the reactions at the electrodes. Hydrogen is the basic fuel, but fuel cells also require oxygen. One great appeal of fuel cells is that they generate electricity with very little pollution–much of the hydrogen and oxygen used in generating electricity ultimately combine to form a harmless byproduct, namely water.
  • A fuel cell is a device that generates electricity by a chemical reaction. Every fuel cell has two electrodes, one positive and one negative, called, respectively, the anode and cathode. The reactions that produce electricity take place at the electrodes.
  • fuel cell is a device that generates electricity by a chemical reaction. Every fuel cell has two electrodes, one positive and one negative, called, respectively, the anode and cathode.
  • One detail of terminology:
  • Oxygen enters the fuel cell at the cathode and, in some cell types (like the one illustrated above), it there combines with electrons returning from the electrical circuit and hydrogen ions that have traveled through the electrolyte from the anode. In other cell types the oxygen picks up electrons and then travels through the electrolyte to the anode, where it combines with hydrogen ions. The electrolyte plays a key role. It must permit only the appropriate ions to pass between the anode and cathode. If free electrons or other substances could travel through the electrolyte, they would disrupt the chemical reaction. Whether they combine at anode or cathode, together hydrogen and oxygen form water, which drains from the cell. As long as a fuel cell is supplied with hydrogen and oxygen, it will generate electricity. Even better, since fuel cells create electricity chemically, rather than by combustion, they are not subject to the thermodynamic laws that limit a conventional power plant (see "Carnot Limit" in the glossary). Therefore, fuel cells are more efficient in extracting energy from a fuel. Waste heat from some cells can also be harnessed, boosting system efficiency still further
  • labrumbra99 on 08 Mar 13
     
    "A fuel cell is a device that generates electricity by a chemical reaction. Every fuel cell has two electrodes, one positive and one negative, called, respectively, the anode and cathode. The reactions that produce electricity take place at the electrodes."
  • ricciardellinick on 11 Mar 13
     
    "A fuel cell is a device that generates electricity by a chemical reaction. Every fuel cell has two electrodes, one positive and one negative, called, respectively, the anode and cathode."
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