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Sat07122014

North Caucasus hydropower to increase with three new projects from RusHydro

North Caucasus hydropower to increase with three new projects from RusHydro

Three small hydropower plants developed by RusHydroare set to begin construction...

Discrediting advertisements on carbon pollution standards outrages organizations

Discrediting advertisements on carbon pollution standards outrages organizations

The Natural Resources Defense Council, and more than two dozen organizations, is...

Supercritical steam for super productive solar thermal plants

Supercritical steam for super productive solar thermal plants

By using supercritical steam, solar thermal power plants could produce enough en...

Nepal gets first wind-solar hybrid system

Nepal gets first wind-solar hybrid system

The Asian Development Bank has handed over the country’s very first wind-solar h...

Unsustainable urban life: What's next?

Unsustainable urban life: What's next?

Nutrition plays a critical role in everyone’s chance at a better future. Hunger...

Chile’s largest solar power project officially open

Chile’s largest solar power project officially open

The 100 megawatt Amanercer Solar CAP Power plant in Chile has been officially op...

Five gigantic things happening in sustainability

Five gigantic things happening in sustainability

Understanding this mainly becoming typical ‘S’ word has always been part of the ...

Business

The Bioplastics industry in Korea – Where to next?

The Bioplastics industry in Korea – Where to next?

Thursday, 10 July 2014

The global bioplastics market is booming – total production capacity is set to grow 400% by 2017, and the European Commission has designatedbioplastic...

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Technology

Politics

Living Green

Elemooni: Eco-friendliness for kids

Elemooni: Eco-friendliness for kids

Thursday, 10 July 2014

A new group of nano explorers could change the way children learn about positive values, the environment, and believe it or not, the periodic table of...

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Renewables

Siemens welcomes Crown Estate’s new seabed rights for wave and tidal power

Siemens welcomes Crown Estate’s new seabed rights for wave and tidal power

Thursday, 10 July 2014

Siemens welcomes The Crown Estate’s announcement of agreed seabed rights for new demonstration zones and project sites around the United Kingdom’s coa...

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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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