Experimental performance of a heat pump driven by vapor injection linear compressor
参考中译:注汽直线压缩机驱动热泵的实验研究


          

刊名：Applied Thermal Engineering
作者：Zuohang Tang（Key Laboratory of Thermal Science and Technology and Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS）
Xuan Li（Key Laboratory of Thermal Science and Technology and Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS）
Huiming Zou（Key Laboratory of Thermal Science and Technology and Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS）
Mingsheng Tang（Key Laboratory of Thermal Science and Technology and Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS）
Changqing Tian（Key Laboratory of Thermal Science and Technology and Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, CAS）
刊号：725C0058
ISSN：1359-4311
出版年：2023
年卷期：2023, vol.225
页码：120197-1--120197-12
总页数：12
分类号：TK12
关键词：Linear compressor；Vapor injection；Heat pump；Flow distribution
参考中译：直线压缩机；蒸汽喷射；热泵；流量分配
语种：eng
文摘：Aiming to improve the performance of the linear compressor, a prototype of a linear compressor with vapor injection has been developed, and a quasi-two-stage compression heat pump with an intermediate heat exchanger has been established. The influence of key parameters on the flow distribution and performance of the injection linear compressor are experimentally investigated. Under the condition of evaporating temperature of-20℃, condensing temperature of 50℃, the heating capacity of 234 W with COP of 2.06 is achieved. Compared with the non-injection mode, the heating COP of the injection mode increases by 28% on average. The heating COP is affected by the combination of injection pressure and supply power frequency, while the injection mass flow rate is independent of the supply power frequency under the given conditions. As the injection pressure rises, the injection mass flow rate increases linearly. However, there is a special characteristic of the free-piston linear compressor which is different from traditional injection compressors. The injection process has a great effect on the suction process, and the suction mass flow rate decreases with the increasing injection pressure.
参考中译：为了提高直线压缩机的性能，研制了一台蒸汽喷射直线压缩机的样机，并建立了带有中间换热器的准两级压缩热泵。通过实验研究了关键参数对直喷式压气机流动分布和性能的影响。在蒸发温度为-20℃，冷凝温度为50℃的条件下，制热量为234W，COP为2.06.与非喷射模式相比，喷射模式的供热系数平均提高了28%。加热COP受喷射压力和电源频率的影响，而在给定条件下，喷射质量流量与电源频率无关。随着注射压力的增加，注射质量流量呈线性增加。然而，自由活塞式直线压缩机具有不同于传统喷射式压缩机的特点。注塑过程对吸气过程影响较大，吸气质量流量随注塑压力的增加而减小。



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