The 'Burning' Challenge in Fusion Energy: Bridging Science and Engineering

During the recent 2026 Pujiang Innovation Forum, Zhong Wulv, chief engineer of China Fusion Energy, outlined a fundamental obstacle in current nuclear fusion research. While global efforts are accelerating toward achieving 'burning' plasma, a significant scientific gap remains between operating deuterium-tritium fusion plasma and achieving high-gain, sustained burning conditions.

The Scientific Hurdle of Self-Sustaining Burn

The core challenge lies in achieving a long-term, self-sustaining, and stable 'burning' state. This requires maintaining plasma at temperatures exceeding 100 million degrees using alpha particles generated by the fusion reaction itself. "Only by clarifying the scientific questions can we identify the engineering path forward," Zhong emphasized, highlighting the transitional phase from scientific validation to practical application in fusion energy development.

China's Experimental Platform: Seeking Answers

To address these critical scientific questions, China Fusion Energy is advancing the development of a groundbreaking experimental facility—the world's first high-temperature superconducting, high-field, steady-state burning platform, known as China Circulation-4. This facility is designed to provide unique experimental conditions for studying steady-state burning physics under high-temperature superconducting and strong magnetic fields.

  • Platform Positioning: The world's first experimental device dedicated to steady-state burning under high-temperature superconducting strong fields.
  • Primary Objective: To generate crucial experimental data and technical validation for overcoming fusion energy's scientific barriers.
  • Technical Features: Integrates high-temperature superconducting magnet technology with steady-state burning plasma research.

The development of this platform represents a significant exploration in fusion energy technology pathways and demonstrates China's commitment to frontier basic research in clean energy. Through this experimental facility, researchers aim to gain deeper insights into plasma behavior under extreme conditions, laying a solid scientific foundation for the future commercialization of fusion energy.