NUCLEAR FUSION

What is Nuclear Fusion?

•A reaction involving certain elements fusing•Partial mass of the product is converted to energy•Use of heat and pressure

Can you control a fusion reaction?

•Yes•Usage of a reactor called a Tokomak•All the technology needed is completed

Magnetic field Suspension of the fusion material in mid-air Fuel injection of deuterium Protective layers

•But........ Starting is a larger problem

Key design challenges

•Need more protective coating on the reactors•Withstand extreme conditions•Machinery to work near 100 million degree substances•Need enough heat and pressure

Will fusion energy be safe?

•Yes•Chances of a ‘runaway’ nuclear reaction is extremely low•Can be stopped instantly in case of unexpected issues•Fuel needed comes from sea water•Not radioactive

ADVANTAGES

•No pollution is produced•Cheap to maintain – fuel is cheap and common•Sustainable source of energy•Power generated is high compared to existing power sources•(Approximately 300 times more energy with same fuel- lithium)

DISADVANTAGES

•Will take time – Unsuccessful since 1965•Will require more technological development•Once completed, takes time and money to replace existing power stations

IMPLICATIONS FOR THE FUTURE

•Need to further develop the technology required to start fusion•Possible working fusion reactor will be operational by 2018•Fusion is expected to be an energy source by 2025