Transcript NUCLEAR FUSION

Nuclear fusion
What is Nuclear Fusion
• 1 Nuclear fusion is multiple like charged
atomic nuclei joined together to form a
heavier nucleus.
• 2 Fusion reactions power the stars and
produce all but the lightest elemets in a
process called nucleosynthesis.
NUCLEAR FUSION(SUN1)
THE NUCLEAR FUSION SHOWEN IN THIS PICTURE IS COMING FROM THE
SUN.
NUCLEAR FUSION(SUN2)
IN THIS PICTURE THERE SHOWN THE SUN BEING ZOOMED UP BY A
TELASCOPE AND THE NUCLEAR FUSION AND REACTIONS AT ONE TIME
Fusion on Earth
• Fusion is a process by witch two or more
molecular structures are focused togather on
atomic level.
• The amount of energy nessacry to create
molecular fusion is astronimal as a result it
has become suggested that nuclear fusion is
rear.
Places fusion take place
• There is only one place known to mankind
where fusion can take place that is at the very
core of a star this happens by one of two
process depends on the size of the star.
• In our own sun there is a temputure
10,000,000 degrees kelvin hydrogen fuses
with more hydrogen to form kelivn in Wat is
known as a proton chain reaction
Places fusion could not take place
• Fusion cannot take place on earth for two
simple reasons, we don’t have the sheer mass
or temputure requred for fusion even jupiter
whitch makes up 99 percent of the mass of all
planets. Earth gravatial pull does not have a
suffient size pressure to reach critical needs to
take place
Tokamak
• A tokamak is a machine producing a toridal
magnetic field for confining a plasma whitch is
charactized and the use of the plasma borne
to generate the helical componet of the
magnetic field it is one of several types of
magnectic confinement devices and is one of
the most researched canidates
Reactors
• There are two types of reactors just as there
are different approches to desinging a
building airplanes and automobiles engineers
have devolped different types of nuclear
power plants two types are called Boiling
reactors and pressurized water reactors as
shown in the pictures below.
Why is nuclear fusion widely
used???
• Nuclear fusion is used as the principle of
operation for a total of 104 nuclear power
reactors in the U.S producing 806.5 billion
KWH of eletricity in 2007 world wide figures in
2006 were 2659.7 billion KWH nuclear fusion
has no use at present except in H-bombs witch
hopefully will never be used in anger
Why will fusion be important in
future.
• By the middle of next century the worlds
population will double and energy demand
will triple this will be due in large part to the
industrialization and economic growth of
developing nations.
Differents between nuclear fusion
and fission
• Nuclear fission allows nuclear things to be
spilt apart when this is done a tremendous
amount of energy is released the energy is
both heat and light energy this energy when it
is let out all at once it can make a tremendous
explosion.
Nuclear fission
• Nuclear fission is a nucler reaction in witch the
nucleus of a atom spilts into smaller parts
often producing free nutrons and a lighter
nuclei witch eventually produce photons.
Nuclear fuel
• The fuel most widely used by nuclear plants
for nuclear fission is uranium. Uranium is a
nonrenewable though it is a common metal
found in rocks all over the world nuclear
plants use a certain kind of uranium is used
because its atoms are usaully split apart.
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