活塞式氢气压缩机气缸内温度变化规律研究

Temperature Performance in the Cylinder of the Piston Hydrogen Compressor

活塞式氢气压缩机是目前加氢站用压缩机发展重点,研究其压缩过程中的温度变化规律对于活塞压缩机的设计和应用有重要意义。本文基于CFD方法,结合动网格技术,构建了活塞式氢气压缩机瞬态流动模型,模拟了氢气压缩机的瞬态压缩过程,研究了压缩过程中氢气的温度场分布以及气缸温度分布规律,研究结果可为氢气压缩机的结构设计和材料选择提供依据。

Piston hydrogen compressors are currently the focus of the development of compressors in hydro-gen refueling stations. Understanding the temperature performance in the cylinder is important to the safety application and the design for the hydrogen compressors. Based on the CFD method and dynamic grid technology, this paper proposed a transient flow model of a piston hydrogen compressor. The transient compression process of the hydrogen compressor is studied, and the temperature distributions of the hydrogen gas and the cylinder wall are studied. The results are benefit for the structure and the material design of the hydrogen compressor.