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olearydev99

What Is Hydrogen? (with picture) - 1 views

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    "Hydrogen is a highly flammable chemical element that occurs in great abundance throughout the universe. In fact, this element makes up approximately 75% of the universe, by volume, and it appears in a very large number of compounds, especially those which make up various organic materials."
tushabeper99

What are the advantages and disadvantages of solar energy - 0 views

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    "Advantages: Solar power gives you a return on your investment, while paying your utility for electricity gives you 0% return. Solar energy is renewable unlike the conventional resources (coal, oil) which will inevitably run out. Non-polluting, no carbon dioxide like fossil fuels Free except for capital expenses. Longevity - solar panels can last over twenty years Low maintenance - solar panels require very little upkeep Independence - an off-grid system allows you to break free from the electrical grid Environmentally friendly because the conversion of energy doesn't produce any carbon dioxide. It comes from the sun, which, unless you are in The South or North pole, comes out almost everyday Solar power is better for the environment, compared to burning fossil fuels and other electrical power. sun is renewable You get clean energy without harming the environment [in term of carbon emissions] , in certain countries, excessive power generated can be sold back to local electricity provider reduces pollution helps create jobs - shores up economy - to build -> you hire - innovate-maintain - basically economic activities reduced dependence on fossil fuels Once installed, the power is free It is environmentally friendly and no pollution is associated with solar power You can sell your excess power back to the power companies It can be installed anywhere You can use batteries to store power for use at night Energy from the sun is renewable, that is, it keeps on coming It is free It does no damage to the earth or its atmosphere It produces no carbon dioxide It doesn't have to be dug up from the ground like coal, oil, natural gas, or uranium It doesn't have to be cut down, like wood from forests. It produces clean, green power in the form of electricity and can be used to power just about everything we need. There is more solar energy landing on the earth every day than it would take to supply the world for a year. Solar energy can heat swimming pools, power calcul
Connor Wiggins

fuel cell Facts, information, pictures | Encyclopedia.com articles about fuel cell - 0 views

  • Fuel cells convert chemical energy to electrical energy by combining hydrogen from fuel with oxygen from the air. hydrogen fuel can be supplied in two ways—either directly as pure hydrogen gas or through a "fuel reformer" that converts hydrocarbon fuels such as methanol, natural gas, or gasoline into hydrogen-rich gas. A fuel cell's only emission is water.
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    What fuel cell is and how its made 
carpenteraut98

How Are Hydrogen Fuel Cells Affecting the Environment? | eHow.com - 0 views

  • por and a small amou
  • Unlike internal combustion and the burning of fossil fuels, hydrogen fuel cells do not produce particulates or emissions other than water vapor and a small amount of carbon dioxide.
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    "hydrogen fuel cells do not produce particulates or emissions other than water vapor and a small amount of carbon dioxide."
dpurdy

MIT's artificial leaf is ten times more efficient than the real thing (Wired UK) - 0 views

  • The device is an advanced solar cell, no bigger than a typical playing card, which is left floating in a pool of water. Then, much like a natural leaf, it uses sunlight to split the water into its two core components, oxygen and hydrogen, which are stored in a fuel cell to be used when producing electricity.
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    This is an amazing breakthrough in developing hydrogen.
giumarraant99

Hydrogen Fuel Cell | Yale Office of Sustainability - 1 views

  • At 250 kilowatts, the fuel cell produces 40-50% of the electricity for the Environmental Science Center. Its electricity production alone is 47% effective, and the addition of heat recovery allows for up to 60% efficiency
  • While designed to run on pure hydrogen, Yale’s fuel cell is actually powered by natural gas, 80% of which is usable hydrogen. The fuel cell takes in natural gas and water and produces water, electricity, and hot air.
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    Explains what this energy source is best suited for and how this energy source reduces other forms of pollution
carrowluk99

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

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    if we fix our problems with price and how we make it hydrogen, we have the potential to generate all of our electrical need using fuel cells 
efana1

http://www.hydrogen.energy.gov/pdfs/doe_h2_fuelcell_factsheet.pdf - 3 views

    • efana1
       
      Good overview of the potential uses
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    Facts about Hydrogen Fuel Cells
stamperdyl98

http://ec.europa.eu/research/energy/pdf/hydrogen-report_en.pdf - 0 views

    • stamperdyl98
       
      page 19 talks about switching to hydrogen
bartontri97

Hydrogen Fuel - Energy from reacting Hydrogen (H2) with oxygen - 1 views

    • bartontri97
       
      use this pic 
dpurdy

Hydrogen cars ready to roll - for a price - US news - Environment - Green Machines - msnbc.com - 0 views

  • The cost varies too, from $1 to $20 a kilo. A gallon of gasoline has the same energy content as a kilo of hydrogen, but vehicles using the latter get two to three times higher mileage.
dpurdy

A hydrogen fueling station powered by the wind | The Car Tech blog - CNET Reviews - 0 views

  • Figuring out an inexpensive and carbon-neutral way to produce an abundant amount of hydrogen will be key to the success of fuel cell vehicles
gaworeckilog99

Fuel cell - Simple English Wikipedia, the free encyclopedia - 0 views

  • t has to be produced first, and if this is done by burning fossil fuels, it does not help against climate change. But, the hydrogen fuel cell will help against climate change in future, because scientists are trying to find new ways to make hydrogen without using fossil fuels.
gaworeckilog99

First production hydrogen fuel cell cars hit the market, from Hyundai | ExtremeTech - 0 views

  • rather than burning hydrogen in place of gasoline as BMW has done with its internal combustion hydrogen cars. Either way, the only emission is water vapor.
boothreb99

Hydrogen's Dirty Secret | Mother Jones - 0 views

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    "Such a system, experts say, would effectively eliminate most of the benefits offered by hydrogen. Although the fuel-cell cars themselves may emit nothing but water vapor, the process of producing the fuel cells from hydrocarbons will continue America's dependence on fossil fuels and leave behind carbon dioxide, the primary cause of global warming."
conboyeri98

Fuel Cells | Energy Sources | Chevron - 0 views

  • Fuel cells are self-contained power generation devices that are able to produce reliable electricity for residential, commercial, industrial and transportation applications. A fuel cell can convert hydrogen directly into electricity that can be used to power an electric car, for example, or a home.
  • In fuel cells, the use of hydrogen produces fewer greenhouse gases than does burning fossil fuels
  • . Fuel cells convert energy efficiently, which helps conserve energy resources. And a byproduct of this electro-chemical process is pure water—a clear benefit for the environment
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  • However, hydrogen—a tasteless, odorless, colorless gas—is not found freely in nature. It must be extracted from other substances.
freedenjoh99

Fuel Cell Vehicles - 0 views

  • Currently, most hydrogen is made from natural gas through a process known as reforming. Reforming separates hydrogen from hydrocarbons by adding heat. hydrogen can also be produced from a variety of sources including water and biomass.
dpurdy

Why a hydrogen economy doesn't make sense - 0 views

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    How inefficient it is to make hydrogen from electricity
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