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Porous g-C<inf>3</inf>N<inf>4</inf>with high pyridine N/sulfur composites as the cathode for high performance lithium-sulfur battery

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Key Words:复叠制冷系统;制冷剂工质对;系统优化;复合制冷
Abstract:为进一步提高复叠制冷系统的热力性能并满足环境保护的要求，对复叠制冷系统的关键技术进展进行了综述。重点整理并分析了制冷剂工质对的选择，总结了冷凝蒸发器和压缩机的选型和节能发展方向，指出采用虹吸制冷剂冷却压缩机电机和润滑油方法，其可使系统的COP值提高约5.76%，并对系统结构整体优化及回热器、喷射器对系统性能的影响进行论述，归纳了保证系统安全运行的措施，探讨了复叠系统和载冷系统相结合的复合制冷形式，指出通过提高载冷段的蒸发温度可进一步提高系统的运行效率，并展望了复叠制冷系统进一步发展和研究方向。
Volume:v.51;No.607
Issue:01
Translation or Not:no

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