Sentences with phrase «heat by the fusion»

The Sun derives most of its heat by the fusion of deuterium into helium.8 The peak of the binding energy curve (above) is around 60 AMU (near iron), so fusion normally9 merges into nuclei lighter than 60 AMU.

The liquid coats the reactor, gets heated by the fusion going on inside, and then is fed through a high - efficiency Brayton cycle engine to generate electricity.

Not exact matches

What is more, heating caused by entry into the atmosphere is unlikely to heat anything more than a thin layer around the outside of rocks, forming what is known as a «fusion crust».

However, increasing the pressure by additional heating to bring the plasma closer to the fusion conditions causes turbulence to become more violent so that plasma confinement is degraded.

Fusion energy requires confining high energy particles, both those produced from fusion reactions and others injected by megawatt beams used to heat the plasma to fusion temperatures.

One of the most harmful phenomena these investigations have discovered is the drift instability, which leads to small - scale turbulence of the plasma that efficiently transports heat and particles by convection to the outer regions, where they are lost and unable to contribute to nuclear fusion.

Having a mass of only less than seven per cent of the mass of the Sun, they are unable to create sufficient pressure and heat in their interiors to ignite hydrogen - to - helium fusion, a fundamental physical mechanism by which stars generate radiation.

Fusion is the process of generating energy by melding together light atoms; it requires heating the fusion fuel (hydrogen isotopes) to tens or hundreds of millions of degrees.

The heat becomes so intense that helium, a fusion by - product, begins to burn both within the core and just outside it, along with hydrogen remaining outside the core.

ITER, which will be finished in 2019 or 2020, will attempt fusion by containing a plasma with enormous magnetic fields and heating it with particle beams and radio waves.

And some physicists speculate that the heat of bubbles targeted by sound waves is theoretically sufficient to trigger fusion, a Holy Grail of renewable energy.

The breakthrough is in magnetic confinement fusion, in which hydrogen is heated until it is a plasma 10 times hotter than the centre of the sun, and held in place by strong magnetic fields until fusion reactions occur.

nuclear power Energy derived from processes that produce heat by splitting apart the nuclei of atoms (fission) or forcing atomic nuclei to merge (fusion).

The results, demonstrated by scientists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) and collaborators on China's Experimental Advanced Superconducting Tokamak (EAST) found that lithium powder can eliminate instabilities known as edge - localized modes (ELMs) when used to coat a tungsten plasma - facing component called the «divertor» — the unit that exhausts waste heat and particles from plasma that fuels fusion reactions.

Betelgeuse can be likened to an enormous «boiling» ball of gas heated by the release of energy from nuclear fusion in its core.

A combination of PPPL modeling led by physicist Gerrit Kramer and DIII - D experiments has found that broadening the electric current in the center of plasma could reduce the loss of crucial elements called alpha particles that heat the plasma and sustain fusion reactions.

New findings led by C.S. Chang of PPPL show that ITER, the international fusion experiment under construction in France, should be able to withstand the enormous heat load that will strike the divertor plates that exhaust waste heat from the facility.

Although fusion of nuclei lighter than iron released large amounts of nuclear energy (heat), the fusion of nuclei heavier than iron absorbed most of that heat and the heat released by fission and decay.

However, as explained in Figure 201 on page 390, heat was absorbed by elements heavier than iron that were produced by fusion.

heat was absorbed by elements heavier than iron that were produced by fusion.

The resulting design, begun by scientists at Oak Ridge National Laboratory (ORNL) and completed by researchers at PPPL, ensures that the heat from fusion reactions will hit the scraper before reaching the divertor.

The concept uses a laser to heat fusion fuel contained in a small cylinder as it is compressed by the huge magnetic field of Sandia's massive Z accelerator.

The cause, according to a theory advanced by PPPL physicist David Gates and colleagues at the Laboratory, lies in the tendency of bubble - like islands that form in the plasma that fuels fusion reactions to shed heat and grow exponentially — a runaway growth that disrupts the crucial current that completes the magnetic field that holds the plasma together.

Originally proposed in a 2010 Sandia theoretical paper, the concept uses a laser to heat fusion fuel contained in a small cylinder (called a liner) as it is compressed by the huge magnetic field of Sandia's massive Z accelerator.

Plasma churns and pulls in different directions around the sun, and the enormous heat produced by the nuclear fusion at the core plays along these currents to create magnetic fields.

The core extends from the center of the Sun to about 0.2 solar radii, and is the only part of the Sun in which an appreciable amount of heat is produced by fusion; the rest of the star is heated by energy that is transferred outward.

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Here the cycle is ionize the gas to make the plasma, build up the current, heat the plasma with an external heater until the temperature for fusion is reached, turn off the heater, and then have the energy require to keep the temperature high generated by the fusion reaction itself.

The goal is to produce a «burning plasma» where the required heat is supplied by the fusion reaction itself.

Some 99.5 % of the hurricane force cause no harm and is naturally dissipated — every second, some 2 million metric tons of air are circulated in, up, and out of the hurricane — where heat energy is radiated to empty space — which every day equals, the energy released by the fusion of four hundred 20 mega-ton hydrogen bombs (See, Rice University's Hurricane Trivia at Houston TeacherTECH Archives).

Are we still supposed to pretend that the Sun is a giant ball of Hydrogen heated by Hydrogen fusion?

If the Sun were a massive ball of hydrogen, heated by a H - fusion reactor at its core, then changes at the solar core would be delayed by about 30 My (million years), the diffusion time for radiation from the core of the Sun to its surface [See William A. Fowler, «What cooks with solar neutrinos?»

BBM (Big Bang Model) of hydrogen creation at the birth of the universe, SSM (Standard Solar Model) of hydrogen - filled stars heated by H - fusion, AGW / AGC Models of Anthropologic Global Warming and / or Cooling, Models of neutron stars as dead nuclear embers of burned - out stars, and The BHM (Black Hole Model) for storing imaginary stellar end products.

The specific latent heat of fusion of ice at 0 ºC, for example, is 334 kJ.kg - 1 This means that to convert 1 kg of ice at 0 ºC to 1 kg of water at 0 ºC, 334 kJ of heat must be absorbed by the ice.

By this token, excimer lasers (like KrF, operating at very short, 0.248 um UV light) can not possibly heat targets to millions degrees in studies of confined fusion.