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Climate Summit sees intiatives and commitments

Climate Summit sees intiatives and commitments

Various bodies and entities on the Climate Summit in New York have announced the...

Climate Rally reaches 310,000 participants

Climate Rally reaches 310,000 participants

The number of people who joined the People’s Climate March this September 21 rea...

China takes big step in reducing ozone depleting gases

China takes big step in reducing ozone depleting gases

China has taken a big step towards reducing its hydrochlorfluorocarbons by closi...

Ozone layer on road to recovery – U.N.E.P., W.M.O.

Ozone layer on road to recovery – U.N.E.P., W.M.O.

The ozone layer is on the road to recovery, but unified action is still needed t...

Green vacation: Go on an eco-friendly safari

Green vacation: Go on an eco-friendly safari

The primary goal of modern-day eco-friendly African safaris is to lessen the ove...

Nepal, the Maldives, and Bhutan could lose around 2 percent G.D.P. due to climate change – A.D.B. report

Nepal, the Maldives, and Bhutan could lose around 2 percent G.D.P. due to climate change – A.D.B. report

Nepal, the Maldives, and Bhutan could be looking at economic losses of around 2 ...

South Asian countries face economic losses due to climate change – A.D.B. report

South Asian countries face economic losses due to climate change – A.D.B. report

Various countries in the South Asian region are looking at significant losses du...

Business

Technology

More ethanol-tolerant yeast for more biofuel production

More ethanol-tolerant yeast for more biofuel production

Thursday, 09 October 2014

Yeast is an important component in the ethanol production process; however, high concentrations of ethanol are toxic to yeast. In order to improve the...

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Politics

New Yorkers support renewables, opposes fracking – N.R.D.C. poll

New Yorkers support renewables, opposes fracking – N.R.D.C. poll

Sunday, 12 October 2014

A state-wide poll commissioned for the Natural Resources Defense Council reveals that New Yorkers oppose fracking and support clean, renewable energy....

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Living Green

How to make your house more eco-friendly and energy efficient

How to make your house more eco-friendly and energy efficient

Tuesday, 14 October 2014

When you are in need of powering your home, but also making sure you have it done in an eco-friendly way that helps keep the power you use more manage...

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Renewables

Low-Carbon

Opinion

Unsustainable urban life: What's next?

Unsustainable urban life: What's next?

Wednesday, 11 June 2014

Nutrition plays a critical role in everyone’s chance at a better future. Hunger, said Benjamin Franklin once, is the best pickle. Some say “pickle”...

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Agency promotes use of nuclear plants in hydrogen production

There is an existing structure for the large-scale production of hydrogen which remains largely untapped according to the International Atomic Energy Agency – nuclear power plants.

According to Ibrahim Khamis, Ph.D., a scientist from the International Atomic Energy Agency, heat from existing nuclear plants could be ideal sites for hydrogen production because of a product which they produce in abundance – steam.

On small scales, hydrogen power comes from a process called electrolysis, where an electric current flowing through water splits the H2O molecules into hydrogen and oxygen.

This process is more efficient and less expensive if water is first heated to form steam, with the electric current passed through the steam.

Mr. Khamis said nuclear power plants are ideal for hydrogen production because they already produce the heat for changing water into steam and the electricity for breaking the steam down into hydrogen and oxygen.

"Hydrogen production using nuclear energy could reduce dependence on oil for fueling motor vehicles and the use of coal for generating electricity. In doing so, hydrogen could have a beneficial impact on global warming, since burning hydrogen releases only water vapor and no carbon dioxide, the main greenhouse gas. There is a dramatic reduction in pollution," Mr. Khamis said.

Together with other scientists and economists at the agency, Mr. Khamis is trying to determine how current nuclear power reactors – 435 are operational worldwide – and future nuclear power reactors could be enlisted in hydrogen production.

One possibility seen by experts is a system of generating hydrogen using low-temperature electrolysis while taking advantage of low electricity prices during the nuclear power plant's off-peak hours.

Future plants, now designed specifically for hydrogen production, would use a more efficient high-temperature electrolysis process or would be coupled to thermochemical processes currently being studied.

"Nuclear hydrogen from electrolysis of water or steam is a reality now, yet the economics needs to be improved," said Mr. Khamis.

He noted that some countries are considering construction of new nuclear plants with high-temperature steam electrolysis stations that would allow them to generate hydrogen gas on a large scale in anticipation of growing economic opportunities. – EcoSeed Staff



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