The ionic compressor is an advanced and prospective compression technology for hydrogen storage. However, a complex wave phenomenon was observed inside the compression chamber due to the fluid flow vortex. This complex gas-fluid interaction can be intervened by a new mechanical design of the motion piston. In this paper, the thermodynamic performance of a novel homocentric two-piston ionic compressor was carried out by mathematical modelling of one compression cycle. The optimisation of the design parameters of the compressor proposed was conducted by the Taguchi method. This study found that the piston diameter ratio was the dominating factor accounting for more than 80 % of the contribution to the mass delivered, power consumption and specific energy consumption. The optimal design parameters were obtained as 0.7 for the piston diameter ratio, 0.5 for the stroke diameter ratio of Piston A and 0.1 for the trajectory parameter. Under the optimal design parameters, the specific energy consumption was obtained as 1563.38 kJ/kg.

中文翻译：

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新型储氢双活塞离子压缩机设计参数优化

离子压缩机是一种先进、有前景的储氢压缩技术。然而，由于流体流动涡流，在压缩室内观察到复杂的波动现象。这种复杂的气液相互作用可以通过运动活塞的新机械设计来干预。本文通过一个压缩循环的数学建模，对一种新型同心双活塞离子压缩机的热力学性能进行了研究。采用田口法对压缩机的设计参数进行了优化。研究发现，活塞直径比是主导因素，对输送质量、功率消耗和比能量消耗的贡献率超过80%。得到最优设计参数为活塞直径比为0.7、活塞A的冲程直径比为0.5、轨迹参数为0.1。在优化设计参数下，得到的比能耗为1563.38 kJ/kg。