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filionmar99

Group items matching "change future" in title, tags, annotations or url - qmstech2 | Diigo Groups - 0 views

groups.diigo.com/...search

biofuel future change

shared by filionmar99 on 24 Oct 12 - No Cached
  • We are working to produce biofuels that are low cost, low carbon, sustainable and able to fulfil the world’s transportation fuel needs on a large scale without compromising food production
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.
Connor Wiggins

HowStuffWorks "How Fuel Cells Work" - 0 views

auto.howstuffworks.com/...fuel-cell.htm

fuel cell sustainable

shared by Connor Wiggins on 15 Mar 12 - Cached
  • This initiative, supported by legislation in the Energy Policy Act of 2005 (EPACT 2005) and the Advanced Energy Initiative of 2006, aims to develop hydrogen, fuel cell and infrastructure technologies to make fuel-cell vehicles practical and cost-effective by 2020
  • Why are governments, private businesses and academic institutions collaborating to develop and produce them? Fuel cells generate electrical power quietly and efficiently, without pollution. Unlike power
  • that use fossil fuels, the by-products from an operating fuel cell are heat and water
  • ...5 more annotations...
  • With a fuel cell, chemicals constantly flow into the cell so it never goes dead -- as long as there is a flow of chemicals into the cell, the electricity flows out of the cell. Most fuel cells in use today use hydrogen and oxygen as the chemicals.
  • If you want to be technical about it, a fuel cell is an electrochemical energy conversion device. A fuel cell converts the chemicals hydrogen and oxygen into water, and in the process it produces electricity.
  • polymer electrolyte membrane fuel cells (PEMFC)
  • United States has dedicated more than one billion dollars to fuel cell research and development so far.So what exactly is a fuel cell,
  • With a fuel cell, chemicals constantly flow into the cell so it never goes dead -- as long as there is a flow of chemicals into the cell, the electricity flows out of the cell. Most fuel cells in use today use hydrogen and oxygen as the chemicals.
  • ricciardellinick on 08 Mar 13
     
    "In 2003, President Bush announced a program called the Hydrogen Fuel Initiative (HFI) during his State of the Union Address."
  • Connor Wiggins on 11 Mar 13
     
    It shows how its sustainable 
dpurdy

Fuel Cells 2000 : Fuel Cell Basics : Applications - 0 views

www.fuelcells.org/...apps.html

hydrogen current use

shared by dpurdy on 15 Mar 12 - Cached
  • There are many uses for fuel cells — right now, all of the major automakers are working to commercialize a fuel cell car. Fuel cells are powering buses, boats, trains, planes, scooters, forklifts, even bicycles. There are fuel cell-powered vending machines, vacuum cleaners and highway road signs. Miniature fuel cells for cellular phones, laptop computers and portable electronics are on their way to market. Hospitals, credit card centers, police stations, and banks are all using fuel cells to provide power to their facilities. Wastewater treatment plants and landfills are using fuel cells to convert the methane gas they produce into electricity. Telecommunications companies are installing fuel cells at cell phone, radio and 911 towers. The possibilities are endless.
  • Stationary
  • More than 2500 fuel cell systems have been installed all over the world
  • ...2 more annotations...
  • Telecommunications
  • Landfills/Wastewater Treatment Plants/Breweries/Wineries-
  • dpurdy on 15 Mar 12
     
    Current Applications for fuel Cells
dpurdy

Top 15 Unexpected Uses For Biodiesel - 0 views

gas2.org/...-unexpected-uses-for-biodiesel

biofuel use

shared by dpurdy on 15 Mar 12 - Cached
  • Producing Hydrogen for Fuel-Cell Vehicles
  • Cleaning Up Oil Spills
  • Generating Electricity
  • ...5 more annotations...
  • Heating Your Home
  • Camping: Cooking and Illumination
  • Cleaning Up Tools and Grease
  • Adding Lubricity to Diesel Fuel
  • 8. Removing Paint and Adhesives Biodiesel can replace the exceedingly toxic products designed for paint removal. It’s probably best used for smaller-scale and non-critical applications (ie not on your car’s custom paint job). Biodiesel can also be used to remove adhesive residues, like those left by duct tape. The last 7 uses I’ve heard about but wasn’t able to substantiate. If you know something about these, or have a resource to contribute, feel free to add it here: 9. Asphalt Cleanup Agent 10. Hand Cleaner 11. Crop Adjuvant 12. Screen Printing Ink Remover 13. Auto Wax Remover 14. Corrosion Preventative 15. Metal Working Lubricant
  • dpurdy on 21 Mar 12
     
    Uses for biofuel
plattjak98

How Hydrogen Fuels Cells Work - 0 views

inventors.about.com/...Physics_Illustr_2.htm

hydrogen how

shared by plattjak98 on 13 Mar 12 - No Cached
  • The hydrogen fuel cell operates similar to a battery. It has two electrodes, an anode and a cathode, separated by a membrane. Oxygen passes over one electrode and hydrogen over the other. The hydrogen reacts to a catalyst on the electrode anode that converts the hydrogen gas into negatively charged electrons (e-) and positively charged ions (H+).
  • plattjak98 on 13 Mar 12
     
    The hydrogen fuel cell operates similar to a battery. It has two electrodes, an anode and a cathode, separated by a membrane. Oxygen passes over one electrode and hydrogen over the other. The hydrogen reacts to a catalyst on the electrode anode that converts the hydrogen gas into negatively charged electrons (e-) and positively charged ions (H+).
dpurdy

How Fuel Cells Work - 0 views

www.fueleconomy.gov/...fcv_PEM.shtml

hydrogen how

shared by dpurdy on 19 Mar 12 - Cached
  • Most fuel cells designed for use in vehicles produce less than 1.16 volts of electricity—far from enough to power a vehicle. Therefore, multiple cells must be assembled into a fuel cell stack.
  • dpurdy on 19 Mar 12
     
    great pic on how fuel cells look. 
dpurdy

War of Currents - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...War_of_Currents

blah

shared by dpurdy on 03 Nov 11 - No Cached
    • dpurdy
      dpurdy on 03 Nov 11
       
      use this picture for how generators work.
  • The advantage of AC for distributing power over a distance is due to the ease of changing voltages using a transformer. Available power is the product of current × voltage at the load. For a given amount of powe
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HowStuffWorks "How Fuel Cells Work" - 0 views

auto.howstuffworks.com/...fuel-cell5.htm

Hydrogen cost infrastructure

shared by dpurdy on 03 Nov 11 - Cached
  • CostChief among the problems associated with fuel cells is how expensive they are. Many of the component pieces of a fuel cell are costly.
  • InfrastructureIn order for PEMFC vehicles to become a viable alternative for consumers, there must be a hydrogen generation and delivery infrastructure. This infrastructure might include pipelines, truck transport, fueling stations and hydrogen generation plants
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dpurdy

Fuel Cells 2000 : Hydrogen : Basics - 1 views

www.fuelcells.org/...basics.html

Hydrogen cost

shared by dpurdy on 03 Nov 11 - Cached
  • How much will Hydrogen fuel cost? The U.S. Department of Energy's Hydrogen, Fuel Cells & Infrastructure Technologies Program is working to achieve the following goals: By 2005, the technology will be available to produce hydrogen at the pump for $3.00 per gallon gasoline equivalent, and DOE wants to validate this technology by 2008.  By 2010, the price goal is $1.50 per gallon of gasoline equivalent (untaxed) at the station. Even $3 a gallon would save most of us money, since FCVs will be two to three times more efficient than internal combustion engine (ICE) vehicles.  If all the goals are met, FCVs offer the promise of energy at $1 a gallon - or less! 
dpurdy

HowStuffWorks "How the Hydrogen Economy Works" - 3 views

auto.howstuffworks.com/...hydrogen-economy4.htm

fuel cell form convert

shared by dpurdy on 03 Nov 11 - No Cached
  • In the hydrogen economy, there is no storehouse to tap into. We have to actually create the e­nergy in real-time.
  • There are two possible sources for the hydrogen: Electrolysis of water - Using electricity, it is easy to split water molecules to create pure hydrogen and oxygen. One big advantage of this process is that you can do it anywhere. For example, you could have a box in your garage producing hydrogen from tap water, and you could fuel your car with that hydrogen. Reforming fossil fuels - Oil and natural gas contain hydrocarbons -- molecules consisting of hydrogen and carbon. Using a device called a fuel processor or a reformer, you can split the hydrogen off the carbon in a hydrocarbon relatively easily and then use the hydrogen. You discard the leftover carbon to the atmosphere as carbon dioxide.
  • To have a pure hydrogen economy, the hydrogen must be derived from renewable sources rather than fossil fuels so that we stop releasing carbon into the atmosphere. Having enough electricity to separate hydrogen from water, and generating that electricity without using fossil fuels, will be the biggest change that we see in creating the hydrogen economy.
  • ...2 more annotations...
  • In the future, barring some technological breakthrough, it seems likely that one of two things will happen to create the hydrogen economy: Either nuclear-power or solar-power generating capacity will increase dramatically.
  • The electrical-generation problem is probably the biggest barrier to the hydrogen economy
dpurdy

Wave Energy Wave Power Clean Renewable Electricity Generation - Wavegen - 1 views

www.wavegen.co.uk/info_schools_wave_whistles.htm

wave what

shared by dpurdy on 03 Nov 11 - No Cached
  • Ocean waves are a tertiary form of solar energy, in that unequal heating of the Earth’s surface generates wind, and wind blowing over water generates waves. Despite the fact that nearly 75% of the Earth’s surface is covered with water, waves are a largely unexplored source of energy, compared with the progress that has been made in harnessing the sun and wind.
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OWECO By Others - 1 views

www.owec.com/byOTHERS.html

wave form

shared by dpurdy on 03 Nov 11 - No Cached
  • ocean waves is long considered substantive kinetic resource
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Wave power - Wikipedia, the free encyclopedia - 2 views

en.wikipedia.org/...Wave_power

wave sustainable history location what grid

shared by dpurdy on 03 Nov 11 - No Cached
  • Waves are generated by wind passing over the surface of the sea. As long as the waves propagate slower than the wind speed just above the waves, there is an energy transfer from the wind to the waves.
  • The first known patent to utilize energy from ocean waves dates back to 1799 and was filed in Paris by Girard and his son.[12] An early application of wave power was a device constructed around 1910 by Bochaux-Praceique to light and power his house at Royan, near Bordeaux in France
  • Once the wave energy is captured at a wave source, power must be carried to the point of use or to a connection to the electrical grid by transmission power cables.[2
  • ...2 more annotations...
  • The realistically usable worldwide resource has been estimated to be greater than 2 TW.[49][50] Locations with the most potential for wave power include the western seaboard of Europe, the northern coast of the UK, and the Pacific coastlines of North and South America, Southern Africa, Australia, and New Zealand. The north and south temperate zones have the best sites for capturing wave power. The prevailing westerlies in these zones blow strongest in winter. Waves are very predictable; waves that are caused by winds can be predicted five days in advance.[citation needed]
  • There is a potential impact on the marine environment. Noise pollution, for example, could have negative impact if not monitored, although the noise and visible impact of each design varies greatly.[5]. Other biophysical impacts (flora and fauna, sediment regimes and water column structure and flows) of scaling up the technology is being studied.[51] In terms of socio-economic challenges, wave farms can result in the displacement of commercial and recreational fishermen from productive fishing grounds, can change the pattern of beach sand nourishment, and may represent hazards to safe navigation.[52] Waves generate about 2,700 gigawatts of power
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EIA Energy Kids - Hydropower - 1 views

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

what how location

shared by dpurdy on 03 Nov 11 - No Cached
  • Tides are caused by the gravitational pull of the moon and sun, and the rotation of the Earth. Near shore, water levels can vary up to 40 feet due to tides. Dam of the Tidal Power Plant on the Estuary of the Rance River, Bretagne, France Source: Stock photography (copyrighted) Tidal power is more predictable than wind energy and solar power. A large enough tidal range — 10 feet — is needed to produce tidal energy economically.
  • The United States has no tidal plants and only a few sites where tidal energy could be produced economically. France, England, Canada, and Russia have much more potential to use this type of energy.
  • Tidal turbines are basically wind turbines in the water that can be located anywhere there is strong tidal flow. Because water is about 800 times denser than air, tidal turbines have to be much sturdier than wind turbines. Tidal turbines are heavier and more expensive to build but capture more energy.
  • ...2 more annotations...
  • Waves are caused by the wind blowing over the surface of the ocean. There is tremendous energy in the ocean waves. It's estimated that the total potential off the coasts of the United States is 252 billion kilowatthours a year, about 6% of the United States' electricity consumption in 2010. The west coasts of the United States and Europe and the coasts of Japan and New Zealand are good sites for harnessing wave energy.
  • Many more ways to capture wave energy are currently under development. Some of these devices being developed are placed underwater, anchored to the ocean floor, while others ride on top of the waves. The world's first commercial wave farm using one such technology opened in 2008 at the Aguçadora Wave Park in Portugal.
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dpurdy

Energy Resources: Geothermal power - 0 views

home.clara.net/...geothermal.htm

pollution location cost how what geothermal

shared by dpurdy on 03 Nov 11 - Cached
  • Geothermal energy has been used for thousands of years in some countries for cooking and heating.
  • How it works
  • Hot rocks underground heat water to produce steam. We drill holes down to the hot region, steam comes up, is purified and used to drive turbines, which drive electric generators.
  • ...5 more annotations...
  • Advantages   Geothermal energy does not produce any pollution, and does not contribute to the greenhouse effect.
  • Once you've built a geothermal power station, the energy is almost free. It may need a little energy to run a pump, but this can be taken from the energy being generated.
  • The big problem is that there are not many places where you can build a geothermal power station. You need hot rocks of a suitable type, at a depth where we can drill down to them. The type of rock above is also important, it must be of a type that we can easily drill through.
  • Hazardous gases and minerals may come up from underground, and can be difficult to safely dispose of.
  • Is it renewable? Geothermal energy is renewable. The energy keeps on coming, as long as we don't pump too much cold water down and cool the rocks too much
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Energy Resources: Biofuels - 2 views

home.clara.net/...biofuels.htm

pollution cost biofuels

shared by dpurdy on 03 Nov 11 - No Cached
  • By "biofuels" on this page, I mean fuels for vehicles, such as "biodiesel" and "bioethanol" - although you can also use the term "biofuel" to cover any kind of fuel made from living materials or their waste.
  • How it works Biofuels are made from two main sources: Growing crops such as corn, sugar cane, soya or rapeseed; or from palm oil Growing algae
  • Biofuels are made from two main sources: Growing crops such as corn, sugar cane, soya or rapeseed; or from palm oil Growing algae
  • ...9 more annotations...
  • iofuels are potentially carbon-neutral, because although carbon dioxide is released when we burn them, carbon dioxide is taken in by the plants as they grow. However, energy is needed to grow the crops, harvest them, and to process the results into usable products - and most of this energy will be from fossil fuels for farm machinery and power stations.
  • Biofuels are potentially carbon-neutral, because although carbon dioxide is released when we burn them, carbon dioxide is taken in by the plants as they grow. However, energy is needed to grow the crops, harvest them, and to process the results into usable products - and most of this energy will be from fossil fuels for farm machinery and power stations.
  • Producing biofuels from crops means using large amounts of land to grow those crops - that means less land for food production. We must be careful to strike a balance between crops ofr fuel and crops for food.
  • Producing biofuels from crops means using large amounts of land to grow those crops - that means less land for food production. We must be careful to strike a balance between crops ofr fuel and crops for food.
  • Algae - that's pond scum - are microscopic water plants. They reproduce and photosynthesise fast, and the algae are then filtered out of the water and the lipids (oils) are used to make biodiesel.
  • It is claimed that growing plants to make biofuels will take in that carbon dioxide again. But biologists tell us that forests are not 'the lungs of the planet' after all - they give out as much CO2 as they absorb as the plants respire. It seems that it's plant plankton in the oceans that takes in most CO2 and gives out most oxygen.
  • It takes huge areas of land in order to grow crops for biofuels, although making biofuels from algae does not have this problem
  • Biofuel production is closer to being carbon-neutral than using fossil fuels.
  • Is it renewable? Biofuels are renewable, we can plant more of the crops or grow more of the algae.
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EIA Energy Kids - Energy Basics - 0 views

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

current

shared by dpurdy on 03 Nov 11 - No Cached
  • Energy Is the Ability To Do Work Energy comes in different forms: Heat (thermal) Light (radiant) Motion (kinetic) Electrical Chemical Nuclear energy Gravitational
  • Renewable Energy Renewable energy sources include: Solar energy from the sun, which can be turned into electricity and heat Wind Geothermal energy from heat inside the Earth Biomass from plants, which includes firewood from trees, ethanol from corn, and biodiesel from vegetable oil Hydropower from hydroturbines at a dam
dpurdy

RenewableUK - Where Does Tidal Energy Come From? - 0 views

www.bwea.com/tides.html

what Tide

shared by dpurdy on 03 Nov 11 - No Cached
  • Where Does Tidal Energy Come From? The gravitational force of the Earth stops the ocean from floating off into space, just like everything else. The Moon also has a very weak gravitational effect on the Earth, which is not normally noticable as far as falling teacups are concerned, but the ocean, which can flow around the globe to even out differences, is noticably affected.
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Biomass Energy Home Page Biomass Energy: Cost of Production - 0 views

www.oregon.gov/...Cost.shtml

cost

shared by dpurdy on 03 Nov 11 - No Cached
  • The cost of producing ethanol varies with the cost of the feedstock used and the scale of production. Approximately 85 percent of ethanol production capacity in the United States relies on corn feedstock. The cost of producing ethanol from corn is estimated to be about $1.10 per gallon.
  • Because a gallon of ethanol contains less energy than a gallon of gasoline, the production cost of ethanol must be multiplied by a factor of 1.5 to make an energy-cost comparison with gasoline. This means that if ethanol costs $1.10 per gallon to produce, then the effective cost per gallon to equal the energy contained in a gallon of gasoline is $1.65. In contrast, the current wholesale price of gasoline is about 90 cents per gallon.
  • A major hurdle facing commercial biodiesel production is the cost of producing the fuel. Vegetable oil seed procurement, transport, storage and oil extraction accounts for at least 75 percent of the cost of producing biodiesel. The cost varies depending on the feedstock used. For example, based on the market price for industrial rapeseed grown in Washington and Idaho, the estimated cost of producing biodiesel is $2.56 per gallon of rapeseed methyl ester. Recent estimates put the cost of production in the range of $1.30 per gallon (using waste grease feedstock) to $2.00 or more per gallon using soybean oil.
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