Archive for the ‘nuclear energy’ category: Page 8

Feb 14, 2022

Why the Nuclear Option is a Necessity if Humans Are Ever Going to Get to Mars and Return Alive

Posted by in categories: chemistry, nuclear energy, space travel

The ISS is 1,000 times closer to us than the Moon, and 600,000 times closer than Mars. To get to the latter and back safely, we need faster rocket propulsion systems.

Using the conventional chemical rocket technology we have perfected at this time, a single mission to Mars will require the launch of a mass equal to 10 ISS to be put into space. It will involve at least 30 and as many as 40 of the largest rockets we have today to put the spacecraft, crew and fuel needed for the mission. That doesn’t include adding reserves of fuel placed strategically along the route should a problem arise going to Mars and coming back. Brown states that the total cost of a single mission using this approach would exceed $80 billion using the yet-to-be-launched SLS as the primary vehicle. With SpaceX and the Starship and Heavy booster, the cost could be cut by half. But even $40 billion for a single mission seems excessive.

Using nuclear-powered propulsion systems, however, would eliminate the need to put megatons of fuel into orbit. The only time chemical rockets would be used would be in launching the crew and spaceship components to Earth orbit. That could be done in as few as three launches with the final assembled ship going to Mars and back and then being parked in Earth orbit to be used again on future missions.

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Feb 14, 2022

The Morning After: European fusion reactor shatters energy production record

Posted by in categories: nuclear energy, particle physics

The Joint European Torus (JET) fusion reactor in the UK has generated the highest level of sustained energy ever from atom fusion. On December 21st, 2021, the “tokamak” reactor produced 59 megajoules of energy during a five-second fusion pulse. That’s double what it created back in 1997. (Yes, I know energy is not created or destroyed, but you get what I mean!)

The JET reactor is the flagship experimental device of the European Fusion Program, funded by the EU. It’s mainly designed to prove scientists’ modeling efforts, with an eye on future, bigger experiments with a much larger ITER reactor in France, set to start fusion testing in 2025.

JET hit a Q value of 0.33, meaning it produced about a third of the energy put in. The highest Q value achieved so far is 0.7 by the US Department of Energy’s National Ignition Facility, but it only hit that figure for 4 billionths of a second. The goal with ITER is to reach a Q factor of 10 or greater. Fun fact: ITER isn’t an acronym but means “the path” in Latin. And now you know.

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Feb 13, 2022

It’s time to rethink Nuclear Power! Limitless Green Thorium Energy is coming

Posted by in categories: nuclear energy, particle physics

Nuclear power may not be as bad as you think. If we used Thorium instead of Uranium, we could greatly decrease dangerous radioactive by-products. There is enough Thorium in the world to meet all our energy needs for over 1,000 years.

In this video I show you how nuclear power plants work, and how Thorium can change the game. I aim to shift your views on nuclear power.

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Feb 13, 2022

Explained: Breakthrough in nuclear fusion, and why it is significant

Posted by in categories: materials, nuclear energy

But the benefits of fusion reaction are immense. Apart from generating much more energy, fusion produces no carbon emissions, the raw materials are in sufficient supply, produces much less radioactive waste compared to fission, and is considered much safer.

Over the years, scientists have been able to draw up the plan for a fusion nuclear reactor. It is called ITER (International Thermonuclear Experimental Reactor) and is being built in southern France with the collaboration of 35 countries, including India which is one of the seven partners, alongside the European Union, the United States, Russia, Japan, South Korea and China.

Feb 10, 2022

Major breakthrough on nuclear fusion energy — BBC News

Posted by in categories: innovation, nuclear energy

European scientists say they have made a major breakthrough in their quest to develop practical nuclear fusion — the energy process that powers the stars.

The UK-based JET laboratory has smashed its own world record for the amount of energy it can extract by squeezing together two forms of hydrogen.

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Feb 9, 2022

Major breakthrough in fusion energy

Posted by in categories: innovation, nuclear energy

The biggest breakthrough in fusion energy since 1997 has been reported today at the Joint European Torus in Oxford, UK, with 59 megajoules produced over five seconds (11 megawatts of power), more than double the previous record.

Feb 9, 2022

European scientists in ‘landmark’ nuclear fusion breakthrough

Posted by in categories: business, nuclear energy

Experiment at UK’s JET facility boosts hope that clean power source could soon be harnessed commercially.

News, analysis and comment from the Financial Times, the worldʼs leading global business publication.

Feb 8, 2022

The Nuclear Industry Argues Regulators Don’t Understand New Small Reactors

Posted by in categories: climatology, nuclear energy

Advocates say the plants offer a climate fix, but opponents decry them as dangerous.

Feb 3, 2022

China inks $8 bln nuclear power plant deal in Argentina

Posted by in categories: engineering, nuclear energy

Feb 2 (Reuters) — State-owned China National Nuclear Corp (CNNC) has signed a contract in Argentina to build the $8 billion Atucha III nuclear power plant using China’s Hualong One technology, reviving a deal that had been stalled for years.

CNNC said on its WeChat account late on Tuesday that ithad signed an engineering, procurement and construction (EPC) contract, which comes ahead of Argentine President Alberto Fernandez’s trip to China later this week.

Progress on the nuclear deal between the two nations had stalled since it was first negotiated by the administration of former President Cristina Fernandez, a left-wing populist who left office in 2015. She is now Argentina’s vice president.

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Feb 1, 2022

Here’s Everything You Need to Know About the Life Cycle of Stars

Posted by in category: nuclear energy

Stars are giant balls of gas that emit light and heat. They are mostly made up of hydrogen and helium gases and can have huge masses. For instance, the heaviest star yet found in our universe, called R136a1, has a mass of around 315 times that of our Sun and is almost 9 million times more luminous.

Stars are so heavy that they should collapse due to the inward force of gravity exerted by their own weight but thanks to the nuclear fusion reactions taking place in their cores, the massive inward gravitational force is balanced by the strong heat and pressures found within a star. This balance between gravity and gas pressure from energy generation is called hydrostatic equilibrium, and it is both self-regulating and finely tuned. goes up must come down, as the saying goes, but what is gravity?

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