Lv Zhangquan, Liu Xianyang, Chen Hongyue, Tang Liping
School of Mechanical Engineering, Anyang Institute of Technology, Anyang, 455000, China.
School of Mechanical Engineering, Liaoning Technical University, Fuxin, 123000, China.
Sci Rep. 2024 Aug 22;14(1):19492. doi: 10.1038/s41598-024-70473-9.
In this paper, a novel Multi-loop Moving Coil Linear Compressor (M-MC-LC) is studied, in which the piston is driven by the Co-core Bilateral Reverse Coil (CBRC) in a reciprocating motion within the magnetic array. The DC excitation technique is introduced to address the phenomenon that the piston is axially offset under the influence of gas force. In order to clarify the effect of DC excitation on the performance of the moving-coil linear compressor, the compressor prototype is developed, and the dynamic performance testing test-bed and the refrigeration performance test-bed are built to qualitatively and quantitatively analyze the relevant performance parameters of the compressor from theoretical and experimental aspects. The results show that when the DC excitation accounts for less than 20% of the total input voltage, the pressure ratio increases with the increase of DC excitation; when the percentage is at 22.9%, a sudden drop in the volumetric efficiency of compressor occurs. Mass flow and COP increases first and then decreases with the increase of DC voltage excitation. The study results provide a guideline for the stable and reliable operation of the system and provide a valuable reference for the linear compressor piston offset adjustment.
本文研究了一种新型多回路动圈式线性压缩机（M-MC-LC），其中活塞由共芯双边反向线圈（CBRC）驱动，在磁阵列内做往复运动。引入直流励磁技术来解决活塞在气体力作用下轴向偏移的现象。为了阐明直流励磁对动圈式线性压缩机性能的影响，开发了压缩机样机，并搭建了动态性能测试台和制冷性能测试台，从理论和实验两方面对压缩机的相关性能参数进行定性和定量分析。结果表明，当直流励磁占总输入电压的比例小于20%时，压力比随直流励磁的增加而增大；当该比例为22.9%时，压缩机的容积效率会突然下降。质量流量和能效比随直流电压励磁的增加先增大后减小。研究结果为系统的稳定可靠运行提供了指导方针，为线性压缩机活塞偏移调整提供了有价值的参考。
