ocean

Hydrogen Challenger: Sustainable Energy on the High Seas

- Adam Clare

The Hydrogen Challenger is a tanker ship that has gone from 20th century ideas to storing 21st century hydrogen energy.

Hydrogen Challenger

From Wikipedia:
Hydrogen Challenger is a 66 meter (216′ 6″) refitted coastal tanker for mobile hydrogen production, it is fitted with a vertical axis wind turbine that generates electricity for the electrolysis of water to fill the hydrogen storage tanks. The total storage and transportation capacity is 1,194 m³ (42,000 ft3), it is stationed in the German Bight or near Helgoland (where the most wind is) and docks in Bremerhaven where the produced hydrogen is delivered to the market.

Read some more at the Power Generation here.

Google Earth Includes Oceans

- Adam Clare

Google Earth is a neat program, but what people can use it for is far more interesting than the software itself. Google has gone ahead and modified their program to now include information about the Earth’s ocean to make people aware of how the oceans are connected to our lives.

“I’ve been struggling my whole life to figure out how to reach people and get them to understand they’re connected to the ocean,” Dr. Earle said.

“But I go to the supermarket and still see the United Nations of fish for sale,” she said. “Marine sanctuaries are still not really protected. Google Earth gets all this information now and puts it in one place for the littlest kid and the stuffiest grownup to see in a way that hasn’t been possible in all preceding history.”

By choosing among 20 buttons holding archives of information, called “layers” by Google, a visitor can read logs of oceanographic expeditions, see old film clips from the heyday of Jacques-Yves Cousteau and check daily Navy maps of sea temperatures.

Jelly Balls – Nature’s Carbon Sequestration

- Adam Clare

Some researchers off the coast of Australia think that jelly balls is Earth’s way to fight global warming – neat!

By eating the algae, the salps turn the algae and their carbon dioxide into faeces which drops to the ocean floor. They also take carbon to the floor with them when they die after a short two-week life cycle.

This is thought to be a natural form of carbon sequestration similar to what scientists are trying to do with carbon capture from emission sources such as power stations.

Dr Baird said Australian salps are biologically closer to vertebrates such as humans than to jellyfish because they have the rudiments of a primitive nervous system.

‘They are interesting because they are the fastest reproducing multi-celled animal on the planet and can double their numbers several times a day.’

More Wave Power

- Adam Clare

A new way to catch wave power is really neat: it’s wave power through vortexes.

A bane of Big Oil’s offshore rigs could become a boon for renewable energy.
By tapping the natural motion of slow-moving water, a new hydrokinetic generator could open vast new swaths of the ocean for energy production.
When ocean currents flow over any kind of cylinder, like the long cables that hold drilling platforms in place, small vortices are created. They eventually spin away, or shed, causing vibrations that over time can destroy an oil rig’s moorings.
Now, a University of Michigan engineer who long worked on suppressing this phenomenon, has developed a prototype energy-harvester that can capture the mechanical energy it creates.

Wave Energy for Desalination

- Adam Clare

CETO Wave Energy has designed a system that uses tidal power to both pump water and desalinate it! Desalination is a growing necessity in areas lacking fresh water that have access to sea water; however, it is energy and cost intensive. By using a renewable resource, it makes desalination a viable option.

Unlike other wave energy systems currently under development around the world, the CETO wave power converter is the first unit to be fully-submerged and to produce high pressure seawater from the power of waves.
By delivering high pressure seawater ashore, the technology allows either zero-emission electricity to be produced (similar to hydroelectricity) or zero-emission freshwater (utilising standard reverse osmosis desalination technology). It also means that there is no need for undersea grids or high voltage transmission nor costly marine qualified plants.

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