Induction (high temperature heating)
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Technology Description
During induction, an electromagnetic field is generated when AC current flows through an inductor: this induces a current flow in a conductive material appositely placed nearby. The higher the current flow, the more the heat generated inside the object itself. If the field is raised enough to overcome the melting point, the material changes phase: this technology is used commonly for the melting of metals. While already commercial for some applications, research and development could expand the range of applications, further improve efficiency and reduce costs.
Relevance for Net Zero
High- to medium-temperature heat (greater than 100 °C) in industry is currently supplied mostly by fossil fuels. This technology can replace fuel-fired ovens in several processes, reducing on-site emissions. The use of renewable electricity can enable a CO2-free heating process. Since induction furnaces are already commercial in some applications, they could provide good potential for further development for other applications.
Key Countries
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