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China Unveils Innovative Power Plant Using Supercritical CO2
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In Short: China has unveiled a new power plant in Yantai that will use supercritical carbon dioxide (CO2) to generate electricity, marking a significant shift from traditional steam-based systems.
China has unveiled a new power plant in Yantai that will use supercritical carbon dioxide (CO2) to generate electricity, marking a significant shift from traditional steam-based systems. The facility, built on the site of an existing coal-fired plant, the Bajiao power station, aims to reduce energy waste and stabilize the local power grid.
The project's first phase will include a supercritical unit with a capacity of 50 megawatts and a molten salt energy storage system with a capacity of 100 megawatts. During periods of low demand, the system will capture surplus energy from the coal plant and store it as thermal energy in a molten salt reactor.
At peak demand times, the thermal energy stored in the molten salt will be used to power the supercritical CO2 unit. This unit will use CO2 held under specific temperature and pressure conditions, where the molecules behave like both a liquid and a gas, to spin a turbine and generate electricity.
According to the project's goals, this innovative system will help limit energy waste and provide a more stable power supply. The supercritical CO2 technology offers several advantages over traditional steam systems, including higher efficiency and smaller physical footprint.
The project's broader implications extend beyond just power generation. It could inform future advancements in energy storage and next-generation energy systems, potentially benefiting sectors such as nuclear power and even space exploration, including applications on the moon.
The Bajiao power station's transition to this new technology represents a significant step in China's efforts to modernize its energy infrastructure and reduce reliance on traditional coal-fired power generation.
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