On November 18th, the 2024 Greater Bay Area Science Forum gathered experts and scholars to exchange ideas on cutting-edge topics, including the low-altitude economy, ocean science, and energy storage technologies, aiming to explore new directions for technological innovation and industrial development.
"Low-altitude economy is a double-edged sword," noted Chen Zhijie, an academician of the Chinese Academy of Engineering, during the low-altitude economy subforum. He emphasized that developing the low-altitude economy hinges on establishing a robust safety system. "Cooperative low-altitude flight safety can be improved through mandatory standards that enhance automatic identification and proactive prevention capabilities. However, managing non-cooperative risks is more challenging and requires better monitoring and identification capabilities," he said. Chen proposed formulating safety standards for low-altitude aircraft from the perspectives of management, manufacturing, and operations while innovating management and intelligent control technologies for low-altitude scenarios.
Zhang Hong, Vice President of EHang Intelligent Equipment, noted, "The state has allocated dimensional land resources, and governments at all levels should construct new economic patterns based on these resources.The economic value brought by the low-altitude economy encompasses several aspects, including economic growth, industrial integration, and infrastructure development." He identified electric vertical takeoff and landing (eVTOL) aircraft as a core application of the low-altitude economy. He also noted that the global market is rapidly expanding and predicted that China would account for 50% of the future market share.
During the ocean science subforum, Li Jiabiao, an academician of the Chinese Academy of Engineering stated,"Land-based resources are becoming increasingly scarce, making the ocean an important alternative." Citing World Bank data, he noted that achieving global temperature control within a 2°C increase by 2050 would require over a 500% increase in the demand for strategic metals like nickel and lithium. He further emphasized,"Clean energy comes with no free lunch. Deep-sea ecosystems recover extremely slowly; once damaged, it takes five to ten years for recovery." He also introduced the "Digital Deep-sea Typical Habitats Programme", an international big science research plan, which leverages digital technologies to effectively predict and protect deep-sea ecosystems.
Hydrogen energy took center stage at the advanced energy technologies subforum. Fu Honggang, a professor at Heilongjiang University, observed,"While hydrogen energy accounted for less than 0.1% of global energy demand in 2020, it is projected to exceed 12% by 2050." He emphasized that with 99% of hydrogen currently derived from fossil fuel reforming, achieving green hydrogen production is critical. Li Haiwen, a professor at Sun Yat-sen University, added that safe and efficient hydrogen storage and transportation technologies are essential for scaling up the hydrogen industry and supporting carbon neutrality goals.
Source: Lingnan on the Cloud
话题上天入海 智献湾区未来
11月18日，2024大湾区科学论坛围绕低空经济、海洋科学与储能技术等前沿议题展开交流，专家学者齐聚一堂，共同探讨科技创新与产业发展的新方向。
“低空经济是把双刃剑。”在低空经济分论坛上，中国工程院院士陈志杰指出，发展低空经济的前提是建立安全保障体系。“合作性的低空飞行安全好说，可以通过强制性标准提升自动识别和主动防控能力；但非合作性的风险更难，需要提升非合作目标的监视和识别能力。”他建议从管理、制造和运行三方面入手制定低空飞行器安全标准，并创新低空场景运行管理和智能管控技术。
亿航智能副总裁张宏表示：“国家把立体国土资源拿出来，由各级政府在这个资源基础上去构建新的经济形态。低空经济带来的产业价值涵盖经济增长、产业融合和基础设施建设等多个方面。”他指出，电动垂直起降飞行器（eVTOL）是低空经济的核心应用载体，全球市场正在迅速扩展，预计中国未来将占据50%的市场份额。
在海洋科学分论坛上，中国工程院院士李家彪指出：“陆地资源日益紧缺，海洋成为重要的替代方向。”他引用世界银行的数据提到，到2050年，为实现全球温升控制在2℃以内，镍、锂等战略性金属的需求量将增长500%以上。他特别提到：“清洁能源没有‘免费的午餐’，深海生态系统恢复极其缓慢，一旦遭到破坏，需要5到10年才能恢复。” 李家彪还介绍了“数字化深海典型生境”国际大科学计划，通过数字化技术对深海生态系统进行科学预测和有效保护。
在先进能源技术分论坛上，氢能源成为讨论重点。黑龙江大学教授付宏刚提到：“2020年氢能在全球能源需求中占比不足0.1%，预计到2050年将达12%以上。”他表示，目前99%的氢气来自化石能源重整，如何实现绿色制氢是关键。中山大学教授李海文补充指出，安全高效的氢储运技术是氢能产业规模化发展的重要环节，未来有望为实现碳中和目标提供重要支持。
文、图｜羊城晚报记者 李钢 何昱 陈晓楠 实习生张小悦 李宇安（除署名外）
译｜邹晓华
英文审校｜林佳岱