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《CIESC Journal》 2018-04
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Influence of active phase compressor on performance of pulse tube cryocoolers

ZENG Yangping;CHEN Xi;JIANG Zhenhua;WU Yinong;ZHU Haifeng;ZHOU Zhipo;School of Energy and Power Engineering, University of Shanghai for Science and Technology;Shanghai Institute of Technical Physics, Chinese Academy of Sciences;  
The experimental performance of a pulse tube cryocooler(PTC) with an active phase compressor(APC) is presented. In order to investigate the phase shifting ability of APC, phase locked loop(PLL) was adopted to control APC's voltage amplitude and phase between APC and main compressor(MC). When the voltage phase(APC lags MC) are 210° and 240°, performances of the cryocooler are tested under the displacement phase angle of 90°—130°. The results show that PTC with APC performs differently when the cryocooler working at different voltage phases, though displacement phase angle is the same. Comparing with PTC with inertance tube(IT), performance of PTC with APC is better. Specifically, if cooling power is 30 W, input power of PTC with APC decreased 8.1%. At last, from the perspective of phase shifting and matching with compressor, the reason why PTC performs differently under different phase-shifting method is demonstrated, which indicates APC could replace IT to shift PTC's phase.
【Fund】: 国家自然科学基金项目(50906054)~~
【CateGory Index】: TB651
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