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As a key approach for the large-scale and efficient storage and transportation of hydrogen energy, liquid hydrogen will play an irreplaceable role in achieving carbon neutrality goals and establishing a large-scale clean energy system. Recently, at a seminar on the new energy industry held by Hangyang Group Co., Ltd. in Hangzhou, Zhejiang, experts present drafted strategies related to the \"dual carbon\" goals, working together to outline a blueprint for a future where green technology drives the development of green energy. Hydrogen energy becomes a key force in achieving deep decarbonization. Zhang Cunman, deputy director of the New Energy Vehicle Engineering Center at Tongji University, pointed out that under the backdrop of the \"dual carbon\" goals, the development of hydrogen energy is of great significance for the transformation of energy strategies. Currently, the energy consumption side is moving toward zero carbon, with clean electricity and green hydrogen power set to become the main sources of energy at the end-use level; it is expected that these will account for around 80% of total energy used at the end stage by 2060. In the future, our country will adopt an energy consumption structure that is based on electricity with hydrogen playing a supplementary role. “At present, the generation of renewable energy in China is on the rise, and electricity transmission alone is not sufficient to utilize all of it; so how should the excess renewable energy be utilized? Zhang Cunman believes that water electrolysis for hydrogen production is an important method of energy conversion. Based on the projections for China’s power generation capacity and structure by 2060, there will be nearly 6 trillion kWh of excess electricity available across the country, enough to produce over 130 million tons of green hydrogen, with a calorific value equivalent to that of 610 million tons of coke. “Hydrogen produced by water electrolysis possesses both the properties of an energy source and a chemical raw material, and it holds broad application prospects in industries such as green fuel synthesis, chemicals, and metallurgy. ”Zhang Cunman said that according to the projections for the power system in 2026, 12 million tons of hydrogen will be needed for the chemical industry, and 13 million tons will be required for green fertilizers. Hydrogen is becoming a key force in deep decarbonization. It is expected that hydrogen energy will account for over 50% of decarbonization efforts in the future. Breakthroughs are still needed in large-scale storage and transportation technologies. Qiu Limin, president of Zhejiang Normal University, said that hydrogen energy is an important medium for driving energy transition and achieving the \"dual carbon\" goals. To use hydrogen as an energy source, it is necessary to solve the problem of large-scale transportation of hydrogen from the production site to the end users. Liquid hydrogen boasts significant advantages in terms of energy storage density and the costs associated with long-distance transportation, making it an important method for the large-scale and long-distance storage and transport of hydrogen energy. “The thermophysical properties of liquid hydrogen differ significantly from those of fluids at room temperature and common cryogenic fluids, posing numerous challenges in storage and transportation. ”Qiu Limin said, “We need to understand the ‘characteristics’ of liquid hydrogen – its low boiling point, high enthalpy of liquefaction, low viscosity, and low adiabatic compression coefficient. These physical properties make it difficult to store it in high quality over long periods, result in high energy costs for liquefaction, pose challenges in sealing mechanical equipment, and make it hard to increase pressure using high-pressure liquid hydrogen pumps.” ” “Moreover, the large-scale application of liquid hydrogen involves complex processes such as liquefaction, storage, transportation, and refueling, as well as key components like cryogenic turbine expanders, hydrogen catalytic conversion heat exchangers, and storage tanks. There is an urgent need for coordinated efforts in developing fundamental theories, critical equipment, and application demonstrations. ”Qiu Limin said that hydrogen liquefaction plants are evolving toward larger scale and lower energy consumption. “During the 14th Five-Year Plan period, China’s plans and supporting policies related to liquid hydrogen technology were implemented at an accelerated pace. Efforts were made to address some of the basic theoretical issues and technical challenges associated with liquid hydrogen production, storage, transportation, refueling, and application; as a result, a hydrogen liquefaction unit with a capacity of 5 tons per day was developed, and the technology required for liquefying hydrogen at a rate of 10 tons per day was mastered. However, significant advancements are still needed in the development and application of large-scale facilities. “In the future, the industry should focus on the needs related to the storage, transportation of liquid hydrogen at low temperatures, and work on areas such as large-scale hydrogen liquefaction with low energy consumption, high-capacity storage and transportation of liquid hydrogen, and rapid transfer of large volumes of liquid hydrogen. This will facilitate the widespread use of liquid hydrogen in fields such as the utilization of renewable energy, cross-border energy trade, and green aerospace. ”Qiu Limin said. Low-temperature technology has broad application prospects. “The golden age of low-temperature technology has arrived, and it will play an important role in areas such as energy storage and transportation, as well as carbon capture.” ”Qiu Limin said that low-temperature technology is not only a key core technology in the hydrogen liquefaction process, but also holds broad application prospects in areas such as data center construction, hydrogen-ammonia-alcohol coupling and large-scale long-duration energy storage, as well as the development of nuclear fusion. Qiu Limin explained that low-temperature technology is a key approach to achieving carbon neutrality in the digital economy and the infrastructure required for computing power; it enables precise temperature control through ultra-large-scale integrated liquid cooling and phase-change cooling solutions, thereby addressing the heat dissipation issues in data centers. To address the volatility of wind and solar energy, low-temperature liquefaction and cryogenic energy storage enable efficient transfer and conversion of energy in new power systems, providing a stable supply of zero-carbon hydrogen, ammonia, and alcohols for green chemical projects on a million-ton scale. This in turn facilitates the integration of green hydrogen, ammonia, and alcohols as well as large-scale, long-duration energy storage. Furthermore, by using low-temperature technology, it is also possible to create an extreme thermal barrier within the device, ranging from ultra-high temperatures to absolute zero. This large-scale, highly stable cryogenic technology is a decisive step in moving nuclear fusion from the experimental stage to practical application. Zheng Wei, Secretary of the Party Committee and Chairman of Hangyang Group, said that the current industrial market is undergoing structural adjustments, which is compelling enterprises to transform and upgrade as well as develop new growth drivers. Low-temperature technology is a key core technology in the air separation industry. In recent years, Hangyang has expanded its development prospects by leveraging low-temperature and gas separation technologies. In the future, it plans to move forward in the field of ultra-low temperature technologies, as well as expand into the new energy sector, with a focus on developing strategies across the entire hydrogen energy industry chain. Han Yisong, Deputy Secretary of the Party Committee and General Manager of Hangyang Group, explained that Hangyang focuses on cutting-edge fields and continues to develop core technologies; it has created efficient cooling solutions for data centers, low-temperature support systems (at the liquid nitrogen/liquid helium level) for nuclear fusion devices, as well as key components for dilution refrigerators used in quantum computing. The range of cryogenic solutions provided by Hangyang offers technical support for the development of **strategic emerging industries**.