主要观点总结
文章主要讨论了下一代聚光太阳能热发电的高温液体介质吸热器技术，包括四种最有前景的液体吸热器：氯化物盐、钠、铅铋和锡吸热器。文章全面回顾了这些吸热器面临的挑战和相应的解决方案，并指出结合盐类净化和抗腐蚀材料是解决高温氯化物盐腐蚀问题的有效途径。同时，提高吸热器效率的最有效方法是减少从源和传播过程中的能量损失。解决液态金属的火险和材料兼容性问题可以促进液体金属吸热器的潜在应用。此外，使用多种传热流体在同一系统中也为下一代CSP提供了前景。最后，文章提出了对未来研究的建议，以填补液体吸热器在> 700°C方面的空白。
关键观点总结
关键观点1: 下一代CSP中高温液体介质吸热器的技术挑战和潜在解决方案
文章主要介绍了四种液体吸热器：氯化物盐、钠、铅铋和锡吸热器，并详细阐述了它们面临的挑战和对应的解决方案。
关键观点2: 液体吸热器的效率提升方法
文章指出，减少从源和传播过程中的能量损失是提高液体吸热器效率的最有效方法。
关键观点3: 液体吸热器的应用前景
文章讨论了使用多种传热流体在同一系统中的前景，并指出了未来研究的建议，以填补液体吸热器在> 700°C方面的空白。
文章预览
图文导读 Abstract To reduce the levelized cost of energy for concentrating solar power (CSP), the outlet temperature of the solar receiver needs to be higher than 700 °C in the next-generation CSP. Because of extensive engineering application experience, the liquid-based receiver is an attractive receiver technology for the next-generation CSP. This review is focused on four of the most promising liquid-based receivers, including chloride salts, sodium, lead-bismuth, and tin receivers. The challenges of these receivers and corresponding solutions are comprehensively reviewed and classified. It is concluded that combining salt purification and anti-corrosion receiver materials is promising to tackle the corrosion problems of chloride salts at high temperatures. In addition, reducing energy losses of the receiver from sources and during propagation is the most effective way to improve the receiver efficiency. Moreover, resolving the sodium fire risk and material compatibility issues
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