A novel low-temperature absorption-compression cascade refrigeration system
A novel low-temperature absorption-compression cascade refrigeration system
复制标题
一种新型低温吸收压缩复叠制冷系统
DOI：
10.1016/j.applthermaleng.2014.10.043
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发表时间：
2015
影响因子：
6.4
通讯作者：
G.M. Chen
中科院分区：
文献类型：
--
作者：
Y.J. Xu;F.S. Chen;Q. Wang;X.H. Han;D.H. Li;G.M. Chen
本文提出了一种新型吸收压缩复叠制冷系统，其蒸发温度可达-170°C。在复叠系统中，压缩子系统（CS）的制冷剂被低品位热驱动吸收子系统（AS）的制冷剂过冷，以减少电力消耗。对-100至-170°C范围内的CS蒸发温度进行了理论和实验研究，并给出了操作参数。在CS蒸发温度为-170℃时，当AS向CS提供164.8W的低级冷却能力时，观察到CS蒸发温度降低了2.5℃，或者CS的高级冷却能力增加了32.3W。同时，在CS中，排气温度和压力降低，而吸气压力升高。这些有益的结果不仅验证了系统的可行性，而且揭示了系统未来的应用潜力。
This paper presents a novel absorption–compression cascade refrigeration system, which can reach an evaporating temperature of −170 °C. In the cascade system, the refrigerant of compression subsystem (CS) is subcooled by the refrigerant of low-grade heat driven absorption subsystem (AS) to reduce the electric power consumption. Theoretical and experimental investigations were carried out over the CS evaporating temperature ranging from −100 to −170 °C and operating parameters were given. At the CS evaporating temperature of −170 °C, when AS provided a low-grade cooling capacity of 164.8 W to CS, a decrease of 2.5 °C in CS evaporating temperature or an increase of 32.3 W in high-grade cooling capacity of CS were observed. Meanwhile, in CS, the discharge temperature and pressure decreased, while the suction pressure increased. These beneficial results not only verified the feasibility of the system, but also revealed the application potential of the system in the future.