A consortium including China, the European Union, India, Japan, Korea, Russia, and the United States is working on a project called ITER with the aim of providing each member with the know-how to produce its own fusion energy plant. What are the benefits and drawbacks of nuclear energy How does nuclear energy work Whats the difference between nuclear fission and nuclear fusion What do. A massive amount of energy releases in this process and is larger than the nuclear fission reaction. Answer 1: Nuclear Fusion refers to a reaction which happens when two atoms join together for forming one or more different atomic nuclei and subatomic particles like protons and neutrons. The three requirements for a successful thermonuclear reactor are high particle density, high temperature, and a container that can maintain the temperature and density long enough for the fuel to be fused (Source: Oracle ThinkQuest).Ĭurrently there are no deployed nuclear fusion reactors, but experiments continue around the world. Question 1: What is nuclear fusion and state the example. (This is how the sun works-hydrogen atoms combine to form helium, releasing light and heat.) To get the atoms to fuse, however, requires a great deal of energy because there is an electrical repulsion that works to keep the similarly charged nuclei apart. It takes less energy to hold the larger atom together, and the excess nuclear energy is released as light and heat. In nuclear fusion, two light nuclei combine to form a single larger nucleus. Fission is the technology currently used in nuclear power stations, but the process also produces waste that continues to give out radiation for a long time. There is an old adage that "fusion is always a decade away," which is a pithy way of saying that despite decades of attempts, humans have not been able to figure out how to make it work well enough to deploy. Nuclear fission is the splitting of a heavy nucleus into two lighter ones. Additional neutrons are also released that can initiate a chain reaction. Explain the byproducts of a fission event. Fusion Video courtesy of the Department of Energy Fission Fission occurs when a neutron slams into a larger atom, forcing it to excite and split into two smaller atomsalso known as fission products. All operating nuclear power plants get their energy from fission, but we actually use energy from fusion more (the sun uses fusion to generate radiant energy). Fusion is still in the laboratory phase, and there are no commercial fusion reactors. Control energy production in a nuclear reactor (Previously part of the Nuclear Physics simulation - now there are separate Alpha Decay and Nuclear Fission sims.) Sample Learning Goals Describe how a neutron can give energy to a nucleus and cause it to fission. Nuclear Fusion If two nuclei have sufficient kinetic energy to overcome the repulsive force, then they undergo the process of nuclear fusion. This energy can be released through fusion or fission. Nuclear energy is the energy that holds the protons and neutrons together in the nucleus of an atom.
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