What would you like to do?
If fusion could provide earth with clean energy for thousands of generations why don't we start using it now?
The problem is that, although there are a range of different techniques for fusion, most of them produce less energy than is required to sustain the reaction. The most promising systems are "hot" reactors. The reaction takes place under conditions of very high temperature and pressure and it is difficult to safely contain such reactions. There are plans to build a prototype reactor that will produce a net energy output for "many minutes" but, alas, we are several years (possibly many years) from commercial fusion power stations.
Was this answer useful?
Thanks for the feedback!
Which follwing energy types used in cleaning fusion isotonic chemcal nuclear heat physical plasma magnetic?
Pyscal, chemical and heat...
Name the energy source that starts heat travels as light and provides energy for all of earths food chains?
this source is sun
We do not currently have the technical knowledge to produce controlled fusion reactors on a scale large enough to produce power. Right now, the only two viable uses of fusion …are in the Sun, and in hydrogen bombs, but the latter is an uncontrolled reaction, not suited for use in a power plant. The problem is that, in order to produce a fusion reaction, you need extremely high temperatures and pressures. That's easy for the Sun to do, because of its enormous mass and gravity, but on Earth it is a problem. Once you have that fusion reaction going, then you need a way to contain it. Unfortunately, there is nothing that can hold the plasma needed for the fusion reaction, because it will burn through anything. Since plasma is a charged stream, we can use magnetic fields to bottle it, so to speak, but in order to produce a strong enough magnetic field, we often need to use super-conducting magnets, which means very, very cold temperatures. The conflict is that we need to maintain pressure and ultra high temperature in close proximity to super-cold temperatures. We just have not been able to accomplish that other than in very, very tiny experiments, with monstrously large machines. Work is ongoing in various labs to attempt this, but I am going to guess that, without the benefit of some stupendous discovery, we are at least 50 or 100 years away from being able to sustain a controlled fusion reaction in a size sufficient to generate commercial power.
"It would be very desirable to use nuclear fusion to produce power on Earth. The fuel source, the hydrogen in water, is highly abundant, and the process is very clean an…d environmentally friendly. The fuel supply for nuclear fission is not abundant, must be highly refined, and the process yields a great deal of dangerous byproducts. So definitely fusion would be a great way to produce power on Earth. Unfortunately, there are a couple of very big problems that may nuclear fusion completely impractical, at least for now. First, it takes very high pressures and very high temperatures to initiate a fusion process. Despite the aspirations of "cold" fusion proponents, temperatures in the order of billions of degrees are needed to start nuclear fusion. Although this can be achieved, it is difficult and certainly is not possible for any large scale commercial venture. The high temperature makes the whole thing exceedingly difficult to deal with, simply because there is no material that can be used to withstand such temperatures. And the process itself, once initiated, is likewise difficult to control. Minor examples of the fusion process have been achieved in laboratories, but nothing feasible for useful power. production." http://www.mhhe.com/physsci/astronomy/arny/student/webtutor/solar_energy/questions.htm#answer1
we are in fourth generation but the fifth generation is now proceeding
They do, but if you are asking why it is not done on a larger scale, it has to do with money. For the current energy companies to switch over to a new technology cost money up…front. This will cut into the business's short term profits, and in big business (which is who owns the energy sectors) the short term profits are valued higher than long term.
nuclear fussion process is not followed in most of the power plants because it is very difficult process to combine the atoms .rather than spliting the atoms.nuclear fission p…rocess is very easy that to split atom.
Wind ,solar ,nuclear , hydroclectric ,tidal, biomass,sun,GO thermal
When a fusion reactor for safely generating energy is developed the element that could meet Earths energy demands for millions of years is?
The most likely fusion reaction to be exploited for power production is between deuterium and tritium, both isotopes of hydrogen. Deuterium oxide is heavy water and can …be produced from any source of natural water, the technology for this is well known, and obviously there are countless tons of it in the earth's water. Tritium does not occur in nature because it has a short half life, the best way to produce it is to irradiate lithium in a nuclear reactor, so to get tritium you need a supply of lithium, but there is enough known to be sure of many years supply, if not millions of years. A reaction entirely between deuterium atoms is also possible but theoretically it is much less attractive, requiring more energy to start it and producing less energy output than the D-T one.
What natural event provides energy for the nuclear fusion reactions that create the heaviest elements?
Heavy elements would be formed in the later stages of a star's life, probably with a supernova type of explosion
At this time nuclear fusion is only practical in bombs and stars. Since the early 1950s various experimental apparatus have been tried to determine how to build a fusion react…or. None of these has yet reached breakeven (the point where the same amount of energy is released as needed to be applied to initiate fusion) and one needs to go far beyond breakeven to make a reactor to generate usable power. Every 10 years or so some fusion researchers will claim usable reactors are only another 10 years away... but we are still waiting.
So far no one has created a sustainable controlled reaction that produces more power than goes into making it happen in the first place. Progress has been made, but there's a …long way to go.
Only if you don't consider the cost to the future.
Hydroelectricity is a method of producing electricity from flowing water. A large area of water - typically held behind a dam - is forced (by it's own weight) through a turbin…e generator, which makes the generator spin. When the generator spins, magnets attached to the turbine portion move past magnets mounted on the generator walls just outside the turbine. This produces electrical current, which is harnessed as electricity.