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介绍了二氧化碳作为制冷剂在工业制冷中的应用。提供了系统中关于热气除霜的控制策略。并对两个实际运行中的氨/二氧化碳复叠系统进行了能效分析,与相应的参照系统进行对比,发现NH_3/CO_2复叠的制冷系统在较低的温度下具有较高的能效比,具有一定的节能意义。
The application of carbon dioxide as a refrigerant in industrial refrigeration is introduced. Provides a system control strategy for hot gas defrost. Energy efficiency analysis of two ammonia / carbon dioxide lavaging systems in actual operation was carried out. Comparing with the corresponding reference system, it was found that the NH_3 / CO_2 lamination system had higher energy efficiency at lower temperature and had Certain energy-saving significance.