Hammer of Thor: A Safer Nuclear Energy Technology

By Admin
Before you read this, check out the upper-right hand corner of this page to view this article in our digital reader. Trust us, it's way cooler! Wri...

Before you read this, check out the upper-right hand corner of this page to view this article in our digital reader. Trust us, it's way cooler!

Written by John Shimkus

The hammer-wielding comic book superhero and Norse God “Thor” may have had a hit movie at the box office this summer, but a real-life superhero bearing the same name also holds the promise of saving the world.  The nuclear reactor meltdowns resulting from the earthquake and tsunami that struck Japan in March overshadowed a revolutionary technological advancement announced in China just a few weeks prior.  China plans to pursue thorium—named after the Norse God—as an alternative element to uranium to fuel future nuclear reactors.  

CHINA PURSUES THORIUM NUCLEAR REACTOR TECHNOLOGY

Thorium is a silvery metal that is abundant here on Earth.  In fact, while the Earth’s crust holds only about another 80 years worth of uranium, thorium is as common as lead.  America actually holds great wealth in thorium, as it has been discovered and often reburied as a byproduct of rare earth metals mining.  It is estimated that there is enough accessible thorium in the Earth’s crust to power humanity for thousands of years.  Not to mention, thorium reactors cost about half of what a standard uranium reactor does. 

China’s Academy of Sciences is actively pursuing a thorium-based molten salt reactor system that will create thousands of times less hazardous waste than a uranium reactor.  The waste has a far shorter lifespan of only about 300 years compared to uranium waste lasting thousands.  The system is also far less prone to disasters as witnessed in Japan’s Fukushima reactor meltdown. 

“The reactor has an amazing safety feature,” says thorium expert and former NASA engineer Kirk Sorensen.  “If it begins to overheat, a little plug melts and the salts drain into a pan.  There is no need for computers, or the sort of electrical pumps that were crippled by the tsunami.  The reactor saves itself. They operate at atmospheric pressure so you don’t have the sort of hydrogen explosions we’ve seen in Japan. One of these reactors would have come through the tsunami just fine. There would have been no radiation release.”

Thorium is activated by being bombarded with neutrons, which enables the nuclear fission process.  But as Sorensen explains, unlike uranium, “There is no chain reaction. Fission dies the moment you switch off the photon beam. There are not enough neutrons for it to continue of its own accord.”

China’s pursuit of thorium nuclear technology may well help the country meet its exponentially increasing energy demand.  With large reserves of thorium deposits located in the United States, the tables could turn, and it may be the Chinese looking to the U.S. for aid in the future.

Share

Featured Articles

Data Centre Demand Putting Pressure on Energy Capabilities

Utilities in the US are predicting a tidal wave of demand for data centres thanks to the boom of AI, which, in turn, will dial up the need for electricity

Q&A with Hitachi Energy’s EVP & Head of North America

Anthony Allard, who heads up Hitachi Energy as Executive Vice President and Head of North America, shares why the grid is holding us back from clean energy

OMV Takes Strides in Energy Efficiency & Emissions Reduction

Austrian multinational integrated oil, gas & petrochemical company OMV continues its sustainability mission, and reports Scope 1 & 2 emissions are down 25%

Q&A with RAIN Alliance President and CEO Aileen Ryan

Technology & AI

Who is Greg Joiner, the new Head of Shell Energy?

Oil & Gas

Watershed Workshop at Sustainability LIVE: Net Zero

Sustainability