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论文类型：期刊论文

发表时间：2017-03-01

发表刊物：SHOCK WAVES

收录刊物：SCIE

卷号：27

期号：2

页面范围：325-332

ISSN号：0938-1287

关键字：Wave rotor; Refrigeration; Thermodynamic analysis; Numerical simulation

摘要：To overcome the bottleneck of traditional gas wave refrigeration, an improved wave rotor refrigerator (WRR) cycle has been proposed, in which the expansion work was recycled during the process of refrigeration. Thermodynamic analysis of the two cycles shows that the refrigeration efficiency of the improved WRR cycle has been greatly increased compared with the traditional WRR. The performance of an improved WRR was investigated by adjusting the major operational parameters, such as the rotational speed of the wave rotor, port size, and inflow overpressure. The experimental results show that pressure loss can be reduced by nearly 40 % in this improved refrigeration system. Meanwhile, a two-dimensional numerical simulation was performed to understand the wave interactions that take place inside the rotor channels.