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Is Fusion Power Closer to Becoming Reality

Is Fusion Power Closer to Becoming Reality

It has been called the holy grail of energy technology; a perfectly clean source with an unlimited supply. Nuclear fusion has been demonstrated to be possible, but converting it to a viable energy source remains technically elusive. However, research on making fusion energy reality is in progress, and there are some who are convinced that the day will come when this free and abundant source will arrive.

Our current nuclear technology, fission, is the breaking of the atomic nucleus, which releases massive amounts of energy. For a fusion reaction, the nuclei of two atoms fuse together to form a heavier nucleus. The resulting release of energy is incredibly large. To put it in perspective, fusion is the power of the sun, a force strong enough to heat a planet that is 93 million miles away.

The fuels for a fusion reaction are the hydrogen isotopes, deuterium and tritium, which are abundantly found in seawater. Experts estimate that there is enough deuterium in seawater to last practically forever. Riccardo Betti, professor at the University of Rochester's Laboratory for Laser Energetics and a leading expert on nuclear fusion, believes that the deuterium found in one cubic kilometer of seawater is equivalent in terms of energy to the entire world’s oil supply.

Another great advantage of fusion is that it does not produce any harmful byproducts. For example, spent fuel from standard fission plants is highly radioactive, and what to do with it has become a major problem. For fusion, two hydrogen atoms combine to form helium, a harmless noble gas.

A myriad of technical problems keep nuclear fusion just beyond our reach at the moment. Material science has not progressed far enough yet to provide a material that can withstand the rigors of the fusion chamber. Also lasers, which are used to fire at the deuterium, have to fire accurately at a small deuterium pellet ten times per second, which has proved challenging. Plus, recent experiments at fusion reaction have not produced enough energy to make up for the energy that gets put in.

Scientists like Professor Betti are working on new designs for fusion reactions, hoping that they can come across a viable model for large-scale deployment. For example, inertial confinement fusion is being developed at the Lawrence Livermore National Laboratory in California and aided by the University of Rochester. The process solidifies the isotopes into pellets, shoots lasers at the pellets, and then pressurizes them to about 500 billion atmospheres (one atmosphere equals standard air pressure at sea level). This ignites the pellet into a fusion reaction.

If fusion becomes a reality, we can all say goodbye to fossil fuels for providing electricity. We can also say goodbye to other renewables like solar and wind. Fusion offers the promise of unlimited energy without any of the harmful side effects. It would revolutionize our attitudes towards electricity use, and no doubt spawn new innovative uses of electricity. It would no doubt, launch humanity into a new era.

By. David Gabel

Source: Environmental News Network




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  • Anonymous on October 24 2010 said:
    The harmful effect of fusion is the creation of waste heat. For every gigawatt of power fusion would produce there would be 2 gigawatts worth of waste heat, most of which would end up back in an already overheating ocean.We are already abundantly supplied with fusion energy by the largest reactor in the solar system, which is heating the largest body of water on the planet sufficiently to supply all of the power we will ever need. Ocean Thermal Energy Conversion is the way to harness and regulate that heat.
  • Anonymous on September 17 2011 said:
    anytime you hear the word "limitless" within the confines of this planet,you should reach for your revolver.somebody is bullshitting you.The suns awesome power(from our tiny perspective)is not unlimited.anybody who says commercial fusion will be unlimited is lying.It hasnt been done and it never will be on a finite planet
  • Anonymous on September 18 2011 said:
    Fusion is not going anywhere soon - PERIOD. What is the point in making something out of it that it is not.About the crank belief of Professor Betti.What's the point. Everybody who has a brain knows that his deuterium/energy claim is...scientifically irrelevant.

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