| 摘要 |
The present invention is referred to a compressed natural gas (CNG) sub-cooling system for CNG-filling stations, comprising a CNG inlet pipeline coming from the CNG compressor, a set of coils connected to an expansion heat exchanger capable of creating a Joule-Thomson cooling effect on the gas, both coils are immersed in a heat exchange facilitator solution and are also connected to outlet valves which in turn are connected to feeding hoses of a charging station.
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