After Fukushima: “Resistant Nuclear Fuel” .. Preventing Accidents in Nuclear Power Plants


After Fukushima: “Resistant Nuclear Fuel” .. Preventing Accidents in Nuclear Power Plants

After Fukushima: "Resistant Nuclear Fuel" .. Preventing Accidents in Nuclear Power Plants
After Fukushima: "Resistant Nuclear Fuel" .. Preventing Accidents in Nuclear Power Plants

The safe, reliable and economical operation of nuclear power plants in the UAE has been at the heart of the country’s nuclear energy program since its inception in 2008, as evidenced by the publication of the document “UAE Policy on the Peaceful Use of Nuclear Energy”.

After the unexpected events in Fukushima, Japan, the idea of ​​accident-resistant nuclear fuel became the focus of researchers around the world, as this developed nuclear fuel system is expected to withstand the unusual operating conditions of nuclear reactors, such as the high temperatures associated with coolant losses in the reactor.

Although the current fuel system can withstand the high temperatures associated with such accidents, its lifespan is shorter than expected for the new system, therefore changing and modernizing the current nuclear fuel systems in light of the benefit of the accident will in Fukushima that period, which allows operators to respond to such incidents, and this leads to increased safety and reliability of the reactors for a much longer period of time, while maintaining or improving performance during normal operations.

By comparing the fuel system used in most current nuclear reactors — that is, uranium dioxide coated with a layer of zirconium to prevent the spread of radioactive materials to the coolant — and the accident-resistant nuclear fuel system, we find that the latter contains the same nuclear fuel, but the The fuel’s outer coating consists of materials. Others, such as ceramics or an alloy of iron, chromium and aluminum, can withstand higher temperatures for a longer period of time.

Developing the potential capacity of nuclear fuel is one of the main research and development priorities in improving the safety of current nuclear reactors, as research and studies have shown that it is possible to develop the fuel system in these reactors while maintaining the produced thermal energy, and the recommended materials in place of the current zirconium begin to melt at temperatures much higher, and zirconium begins to oxidize, and hydrogen is produced at lower temperatures, which can cause dangerous accidents such as the Fukushima disaster in Japan, and research has shown that these innovative materials increase the safety of nuclear reactors in the event of unexpected accidents.

Accident-resistant nuclear fuel plays a key role in delaying the various stages of unexpected hazardous accidents in nuclear power plants, as it yields new spent fuel packaging systems with better properties in terms of strength and ductility, compared to current packaging materials, requiring the fuel to be designed in suitable shapes that allow better localization. To hold the radioactive fission products, with the ability to contain molten fuel in extremely dangerous accidents.

Leave a Comment