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ITER

Presented by:

Pardeep Dixit

UE94047

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History

In Nov 1985,France,UK & Soviet Union proposed a

project to US president to develop fusion energy

Conceptual design began in 1988

US, European union, Soviet Union & Japan werethe initial signatories

Final design was approved in 2001

China,Korea joined in 2003 & India jioned in 2005

On June 28,2005 site was finalised at Cadarachein south of france

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ITER Agreement

On 21st Nov,2006

European Union contributes 45% of thetotal cost

Remaining six nations contribute

9%each

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Objectives

To meet future energy demands

Q>=10

Ignite burning plasma

Develop technologies & processes for afusion plant

Verify tritium breeding concepts

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CONSTRUCTION

ITER Machine Assambly(TOKAMAK)

Assembjed in bottom

up fashion

Contains 1 million

components

30 m in diameter

Installed in a concrete

shield To be maintained at

constant temp

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Blanket

Covers interior surfaces of

vaccum vessel

Beryllium covers the first

wall

Made of copper & steel Provide shielding to

vessel & superconducting

magnets

Neutrons are slowed

down in blanket

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CRYOSTAT

Large stainless steel structure

Provides supercool,vaccum

environment 29.3 m tall,28.6 m wide Has many openings for cooling

system,diagnostics etc

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DIAGNOSTIC SYSTEM

Provide measurements to control & evaluate plasma performance

Include measurement of temp,density,impurity content etc

Comprise of 50 individual measuring systems

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DIVERTER

Made of 54 remotely-removable cassettes CFC or tungsten used as surface material

Bear temp of upto 3000* c

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MAGNETIC SYSTEM

Consists 18 toroidal,6 poloidal field coils & a central solenoid

Coils lie b/w cryostat & vaccum vessel

High M.F of 13 T is produced

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Toroidal system

Poloidal system

Central solenoid

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EXTERNAL COMPONENTS

COOLING WATER

POWER SUPPLY

REMOTE HANDLING

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WORKING

FUSION??

FUSION PROCESS IN GALAXY

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REACHING 150 MILLION DEGREE CELCIUS

Ohmic heating

Neutral beam injection heating

Radio freq heating

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TRITIUM BREEDING & FUEL CYCLE

0n1 + 3Li

6 = 1T3 + 2He

4

0n1 + 3Li7 = 1T3 + 2He4 + 0n1

FUEL CYCLE

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WHY ITER???

Extremely reliable

Fusion fuels are abundantly available on earth

Very small amount of deuterium & tritium arerequired to initiate the reaction

Q>=10

Environmental friendly

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THANKS