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In the newly built Yoohu scientific island, next to the city of Nancheng, China advances discreetly in its plans to materialize a project that the United States explored and abandoned decades ago: the hybrid fusion-fission reactor.
Xinghou-1. His name means “spark”, and is inspired by an appointment by Mao Zedong: “A single spark can set the entire meadow.” But it’s no small thing: it has behind An investment of more than 200,000 million yuanthe equivalent of 28,000 million dollars.
The objective: build a hybrid central with 100 megawatts of electrical power, 300 megawatts of thermal power and, most importantly, a plasma energy gain factor (Q) greater than 30. An unprecedented achievement that could redefine the future of nuclear fusion nuclear energy.
What all this means. To understand the magnitude of this objective, you have to put it in context. The nuclear fusion, the same process that feeds the stars, promises clean energy without the radioactive waste of current nuclear fission. The great challenge is get a fusion reaction to generate more energy of which consumes.
The National Ignition Facility of the United States achieved in 2022 a historical milestone with a value q of 1.5demonstrating for the first time a net energy gain. The International Experimental Thermonuclear Reactor (Iter), a gigantic multinational project that is being built in France, aspires to achieve a Q> 10 to demonstrate the viability of large -scale fusion.
Xinghuo, however, points to a Q> 30, the threshold that experts consider necessary for a merger plant to be commercially profitable. How does China plan to make this giant leap? The answer is in your hybrid approach.
A fusion-fission reactor. That is, a reactor that uses the high energy neutrons generated by a fusion reaction (the “spark”) to bombard a mantle of fistible material such as uranium. This triggers a fission reaction that greatly multiplies energy production. In essence, use the fusion as a catalyst to make the fission much more efficient.
The Xinghuo-1 project has already entered into the initial phase, which includes the tender and evaluation of its environmental impact. Its development is in charge of the state company Nuclear China Industry 23 Construction Corporation (CNI-23) and the private company Lianovation Superconductor.
The road that the United States abandoned. The concept is not new. During the 1970s and 1980s, the United States Department of Energy investigated hybrid reactors before political priorities changed. Concerns about nuclear proliferation (hybrids can be used to produce plutonium) and a strategic commitment to “pure fusion” such as the definitive and cleaner solution led to the abandonment of this line of research.
United States, and with it much of the West, They put all their chips on projects like the iter. China, on the other hand, has seen a shortcut in the hybrid model. While pure fusion follows decades away from its commercialization, a hybrid reactor like Xinghuo could connect a merger plant to the electricity grid much earlier. As soon as in 2030, According to SCMP.
A coordinated national commitment. Xinghuo is part of a well -financed fusion ecosystem. China also maintains the East project, a Tokamak fusion reactor that has been able to maintain a 100 million degrees plasma for more than 17 minutes. The Huanliu-3 project, a newer and more powerful tokamak in experimentation phase. And the CFETR project, A large -scale pure fusion reactorconsidered the Chinese equivalent of Iter.
The success of Xinghuo not only depends on its own advances, but also on the development of a complex industrial supply chain for key components such as superconductor magnets and the thermal vacuum chamber.
If China makes Xinghuo work, either in 2030 or 2035, the implications would be seismic. They would demonstrate the viability of a route to commercial fusion energy that the rest of the world abandoned long ago. He could put Beijing years, if not decades, ahead in the energy race.
Image | Xinhua
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