After a 6-month construction phase, the approximately 30m high hydraulic air compressor (HAC) demonstrator facility installed at the Dynamic Earth science centre in Sudbury was officially opened on June 21, 2017. For the first time in the open literature, this paper presents experimental results from a large scale hydraulic air compressor, which proves their performance as an energy efficiency technology for industrial air compression. The temperature rise of air compressed in the HAC downcomer has been repeatedly measured at around 0.010K, experimentally confirming the process to be . The ratio of mass flow air at intake to mass flow of air at output peaked at 94% for the conditions tested. The theoretical peak efficiency of compression for HAC Demonstrator geometry (predicted to be nearly 73%) was only attained when an in-line air–water mixing system replaced a century-old air–water mixing head design.

中文翻译：

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安装在萨德伯里 Dynamic Earth 的液压空气压缩机 (HAC) 的性能图

经过 6 个月的建设阶段，安装在萨德伯里动态地球科学中心的约 30m 高的液压空气压缩机 (HAC) 演示设施于 2017 年 6 月 21 日正式启用。本文首次在公开文献中介绍了大型液压空气压缩机的实验结果证明了其作为工业空气压缩能效技术的性能。在 HAC 降液管中压缩空气的温升已被反复测量在 0.010K 左右，实验证实了该过程。在测试条件下，进气时的空气质量流量与输出时的空气质量流量之比峰值为 94%。只有当在线空气-水混合系统取代了具有百年历史的空气-水混合头设计时，HAC 演示器几何形状的理论峰值压缩效率（预计接近 73%）才能达到。