Lecture

Fusion Nuclear: Energy Source of Stars

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In course

HUM-123(b): Global issues: energy B

Le cours abordera les grandes problématiques technologiques et socio-économiques liées à la transition énergétique, ainsi que les perspectives et barrières à l'établissement d'un système énergétique durable. ...

Description

This lecture explores the concept of nuclear fusion as an energy source, focusing on its advantages such as being environmentally friendly, abundant, and sustainable. It delves into the operating principles of fusion, the role of plasma as the 4th state of matter, and the potential of fusion reactions usable on Earth. The presentation covers the economic competitiveness of fusion energy, its efficiency in electricity production, and the re-generation of tritium. It also discusses the safety aspects, advantages over traditional energy sources, and the scientific and technological challenges in achieving fusion on Earth, exemplified by projects like ITER and DEMO.

Instructors (2)

Tuong-Van Nguyen

Teaching & PhD Courses Energy conversion and renewable energy ME-409 This course presents an overview of (i) the current energy system and uses (ii) the main principles of conventional and renewable energy technologies and (iii) the most important parameters that define their efficiency, costs and environmental impacts. The Energy Transition : challenges and opportunities HUM-293 This course explores the energy transition from a system based on fossil fuels to a model based o

Selin Yilmaz

Teaching & PhD Past EPFL PhD Students as codirector Matteo Barsanti Courses The Energy Transition : challenges and opportunities HUM-293 This course explores the energy transition from a system based on fossil fuels to a model based on decarbonised energy sources, sobriety and efficiency, and highlights the main technological, socio-economic and geopolitical issues involved.

Official source

Related concepts (32)

Energy development

Energy development is the field of activities focused on obtaining sources of energy from natural resources. These activities include the production of renewable, nuclear, and fossil fuel derived sources of energy, and for the recovery and reuse of energy that would otherwise be wasted. Energy conservation and efficiency measures reduce the demand for energy development, and can have benefits to society with improvements to environmental issues.

Primary energy

Primary energy (PE) is the energy found in nature that has not been subjected to any human engineered conversion process. It encompasses energy contained in raw fuels and other forms of energy, including waste, received as input to a system. Primary energy can be non-renewable or renewable. Primary energy is used in energy statistics in the compilation of energy balances, as well as in the field of energetics. In energetics, a primary energy source (PES) refers to the energy forms required by the energy sector to generate the supply of energy carriers used by human society.

Nuclear fusion

Nuclear fusion is a reaction in which two or more atomic nuclei, usually deuterium and tritium (hydrogen variants), are combined to form one atomic nuclei and subatomic particles (neutrons or protons). The difference in mass between the reactants and products is manifested as either the release or absorption of energy. This difference in mass arises due to the difference in nuclear binding energy between the atomic nuclei before and after the reaction.

Sustainable energy

Energy is sustainable if it "meets the needs of the present without compromising the ability of future generations to meet their own needs." Most definitions of sustainable energy include considerations of environmental aspects such as greenhouse gas emissions and social and economic aspects such as energy poverty. Renewable energy sources such as wind, hydroelectric power, solar, and geothermal energy are generally far more sustainable than fossil fuel sources.

Electricity generation

Electricity generation is the process of generating electric power from sources of primary energy. For utilities in the electric power industry, it is the stage prior to its delivery (transmission, distribution, etc.) to end users or its storage (using, for example, the pumped-storage method). Usable electricity is not freely available in nature, so it must be "produced" (that is, transforming other forms of energy to electricity). Production is carried out in power stations (also called "power plants").

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