Group items tagged to - qmstech2

Sustainable - Definition and More from the Free Merriam-Webster Dictionary - 0 views

www.merriam-webster.com/...sustainable

sustainable

shared by sconzomic99 on 14 Mar 13 - No Cached

of, relating to, or being a method of harvesting or using a resource so that the resource is not depleted or permanently damaged
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FAQ | Fuel Cells 2000 - 0 views

www.fuelcells.org/...faq

fuel cell history

shared by shortsleevesky99 on 11 Mar 13 - No Cached

shortsleevesky99 on 11 Mar 13

"The first fuel cell was built in 1839 by Sir William Grove, a Welsh judge and gentleman scientist, who conducted dozens of experiments using his "gas battery." More than a century later, equipment manufacturer Allis Chalmers plowed a Wisconsin alfalfa field using fuel cell-powered tractor (1959). Serious interest in the fuel cell as a practical energy generator did not begin until the 1960′s, when the U.S. space program chose fuel cells over riskier nuclear power and more expensive solar energy, using fuel cells to furnish power for the Gemini and Apollo spacecraft and electricity and water for the space shuttle. Also in the 1960s, the first passenger vehicle, a prototype van, was built by GM (1966); major auto manufacturers began more concerted fuel cell development efforts in the 1990s."

<div class="cArrow"> </div><div class="cContentInner">"The first fuel cell was built in 1839 by Sir William Grove, a Welsh judge and gentleman scientist, who conducted dozens of experiments using his "gas battery." More than a century later, equipment manufacturer Allis Chalmers plowed a Wisconsin alfalfa field using fuel cell-powered tractor (1959). Serious interest in the fuel cell as a practical energy generator did not begin until the 1960′s, when the U.S. space program chose fuel cells over riskier nuclear power and more expensive solar energy, using fuel cells to furnish power for the Gemini and Apollo spacecraft and electricity and water for the space shuttle. Also in the 1960s, the first passenger vehicle, a prototype van, was built by GM (1966); major auto manufacturers began more concerted fuel cell development efforts in the 1990s."</div>

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Global Fossil-Fuel CO2 Emissions - 1 views

cdiac.ornl.gov/...tre_glob.html

co2

shared by sconzomic99 on 15 Mar 13 - No Cached

Since 1751 approximately 337 billion tons of carbon have been released to the atmosphere from the consumption of fossil fuels and cement production
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Half of these emissions have occurred since the mid 1970s
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HowStuffWorks "Obstacles to Wave Energy" - 0 views

fossil fuels picture cost

shared by fieldingbry99 on 15 Mar 13 - No Cached

Energy Resources: Geothermal power - 2 views

www.darvill.clara.net/...geothermal.htm

geothermal sustainable pollution

shared by gazdiknic99 on 12 Mar 13 - No Cached

Geothermal energy does not produce any pollution, and does not contribute to the greenhouse effect.
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No fuel is needed.
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The Most Frequently Asked Questions about Wind Energy - 0 views

www.culturechange.org/wind.htm

fossil fuels pollution

shared by wellsann99 on 12 Mar 13 - No Cached

In 1997, U.S. power plants emitted 70% of the sulfur dioxide, 34% of carbon dioxide, 33% of nitrogen oxides, 28% of particulate matter and 23% of toxic heavy metals released into our nation's environment, mostly the air. These figures are currently increasing in spite of efforts to roll back air pollution through the federal Clean Air Act.
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wellsann99 on 12 Mar 13

wind power technology

<div class="cArrow"> </div><div class="cContentInner">wind power technology</div>

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Tidal Energy | Renewable Energy Development - 0 views

renewableenergydev.com/tidal-energy

cost tide

shared by murphymat98 on 12 Mar 13 - No Cached

The cost of setting up a tidal power station can be very high, although once in place the operating costs are low. As an example of the cost of setting up, a proposed 8000 MW tidal power plant and barrage system on the Severn Estuary in the UK has been estimated to cost US$15 billion, while another in the San Bernadino strait which would produce 2,200 MW as a tidal fence in the Philippines will cost an estimated US$3 billion.
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wind-energy-industry - 0 views

www.noblepower.com/...wind-energy-industry1.html

wind history

shared by wellsann99 on 12 Mar 13 - No Cached

The U.S. has had modern, commercial-scale wind power for more than two decades. The first domestic wind farms were constructed in California in the early 1980s.  The U.S. wind industry reached its first 1,000 megawatts of installed capacity in 1985, but then took more than a decade to reach 2,000 megawatts in 1999.  Since 1999, however, the installed capacity has increased fivefold.  Today, wind energy is the nation's fastest growing source of commercial-scale power.  
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wellsann99 on 12 Mar 13

how long has wind industry existed in the united states

<div class="cArrow"> </div><div class="cContentInner">how long has wind industry existed in the united states</div>

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Lester Allan Pelton - Hydroelectric Power - 0 views

inventors.about.com/...bl_lester_pelton.htm

history

shared by adamsaub98 on 12 Mar 13 - No Cached

Lester Pelton invented a type of free-jet water turbine called the Pelton Wheel or Pelton turbine. Lester Pelton was born in 1829 in Vermillion, Ohio. In 1850, he immigrated to California
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Geothermal Energy: Pros and Cons - 0 views

www.triplepundit.com/...geothermal-energy-pros-cons

geothermal energy

shared by parkergar99 on 12 Mar 13 - No Cached

faglejoh98 on 12 Mar 13

"The core of the Earth, some 4,000 miles beneath its surface, is a fiery morass of superheated gas and molten rock which exists at roughly 7200 degrees Fahrenheit. That temperature is maintained by the decay of radioactive particles located within the Earth's core. Technically, one could say that geothermal power is a form of nuclear power, though with far different implications from nuclear power as we know it, since these reactions occur in a containment vessel with walls thousands of miles thick. Even so, we still get things like uranium and radon gas, seeping up to the surface."

<div class="cArrow"> </div><div class="cContentInner">"The core of the Earth, some 4,000 miles beneath its surface, is a fiery morass of superheated gas and molten rock which exists at roughly 7200 degrees Fahrenheit. That temperature is maintained by the decay of radioactive particles located within the Earth's core. Technically, one could say that geothermal power is a form of nuclear power, though with far different implications from nuclear power as we know it, since these reactions occur in a containment vessel with walls thousands of miles thick. Even so, we still get things like uranium and radon gas, seeping up to the surface."</div>

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Lock in low electricity rates with Sungevity - 0 views

www.sungevity.com/solar

solar energy low electricity rates

shared by dextereli99 on 12 Mar 13 - No Cached

Go solar and take a stand against rising energy prices You can count on electricity costs going up every year. But there’s a way to lock in low rates and take back the power from your utility company. Go solar with Sungevity. And while everyone else’s bills go up, you can actually save money. Plus, you’ll feel good about your energy choices too.
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dextereli99 on 12 Mar 13

it saves you money

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

www.encyclopedia.com/...fuel_cell.aspx

fuel cell

shared by Connor Wiggins on 12 Mar 13 - No Cached

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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Connor Wiggins on 12 Mar 13

What fuel cell is and how its made

<div class="cArrow"> </div><div class="cContentInner">What fuel cell is and how its made </div>

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The Cost of Biofuels in Guatemala - Photographs - NYTimes.com - 0 views

www.nytimes.com/...06guatemala-15.html

current biofuels

shared by rainwateremi99 on 12 Mar 13 - No Cached

Now that the United States is using 40 percent of its crop to make biofuel, it is not surprising that tortilla prices have doubled in Guatemala, which imports nearly half of its corn. 
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Mapping US Tidal Power Potential | Climate Central - 0 views

www.climatecentral.org/...pping-us-tidal-power-potential

tide energy current

shared by Xin Wang on 12 Mar 13 - No Cached

It’s estimated that tidal power in Alaska could generate as much as 16 TWh/yr of energy (about four times more than what Hoover Dam generates in an average year). In the Lower 48, the potential energy from tidal power is just a fraction of that (just 0.6 TWh/year from Puget Sound, for example). Considering that no tidal power plants in these areas have even been approved yet, it’s going to be several years, or even decades, before Americans can rely on tidal power for their electricity. But for some regions, DOE says the energy from tidal currents will help meet the goal of generating 80 percent of America's electricity from clean sources by 2035.
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Solar Energy Facts: Solar Energy, Solar Cells, Solar Panels | Resourses - 0 views

solarschoolpa.com/solar-energy-facts.html

solar solar power facts

shared by butlerlex99 on 12 Mar 13 - No Cached

For billions of years, the sun has poured out huge amounts of energy in several forms, including light, heat, radio waves, and even x-ray. The Earth, in orbit around the sun, intercepts a very small part of the sun’s immense output. On Earth, direct sunlight is available from sunrise until sunset, except during solar eclipses. Solar collectors and modules are designed to capture some of the sun’s energy and change it from radiation into more usable forms such as heat or electricity. In fact, sunlight is an excellent source of heat and electricity, the two most important forms of energy we consume.
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butlerlex99 on 12 Mar 13

solar energy facts

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Why is tidal power not used more widely - 0 views

wiki.answers.com/...dal_power_not_used_more_widely

tidal energy

shared by tavarreskat99 on 12 Mar 13 - No Cached

Tidal power is not used more widely because tidal barriers are expensive to build, often in remote locations, have high maintenance requirements, and generate relatively small amounts of power. This makes the cost of power very high, and correspondingly the return on investment capital quite low or even negative. In summary, it is promising but needs more development.
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Environmental impact of wind power - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...ronmental_impact_of_wind_power

cost pollution

shared by jack wells on 12 Mar 13 - No Cached

Compared to the environmental impact of traditional energy sources, the environmental impact of wind power is relatively minor, slightly higher than the environmental impact of hydro power on a life-cycle basis. Unlike electricity derived from fossil fuel-powered generating plants, wind power consumes no fuel and emits no air pollution in operation. As well, wind power consumes no fuel in operation, unlike nuclear power plants which do.
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Fuel Cells Save Money, Fuel and Mother Earth | ReTechnology Power and Water Engineering - 0 views

retechengineering.com/ve-money-fuel-and-mother-earth

fuel cell pollution

shared by carpenteraut98 on 12 Mar 13 - No Cached

Although fuel cells are more expensive than fossil fuels, it is predicted that in the near future, fuel cell power will be less expensive and more efficient. The cost is an enticing advantage for the future.
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The only emission is water vapor, a lot environment-friendly than the toxic elements released into the air by burning fossil fuels and gasoline burning cars.
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The only waste product is water vapor.
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carpenteraut98 on 12 Mar 13

"Although fuel cells are more expensive than fossil fuels, it is predicted that in the near future, fuel cell power will be less expensive and more efficient. The cost is an enticing advantage for the future."

<div class="cArrow"> </div><div class="cContentInner">"Although fuel cells are more expensive than fossil fuels, it is predicted that in the near future, fuel cell power will be less expensive and more efficient. The cost is an enticing advantage for the future."</div>

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Global Pollution and Prevention News: Tidal Power - 0 views

www.enn.com/...42118

tide pollution