Natural circulation precooling experiment on a cryogenic pump system.

Author(s) : ZHENG X., CHEN G., GAN Z., et al.

Summary

To cool down a cryogenic pump system effectively from room temperature to a cryogenic temperature, a natural circulation system is introduced. In this system, the liquid nitrogen is discharged from a liquid nitrogen vessel and goes through the cryogenic pump, then flows in a circle via the reflux pipe back to the vessel. The experimental apparatus is illustrated and the test process is described. Heat transfer and pressure drop during the cool-down process is portrayed in the figures. The experimental results demonstrate that natural circulation is an efficient way to precool the pump system and maintain it at cryogenic temperatures.

Details

  • Original title: Natural circulation precooling experiment on a cryogenic pump system.
  • Record ID : 2006-1067
  • Languages: English
  • Source: Cryogenics and refrigeration. Proceedings of ICCR 2003.
  • Publication date: 2003/04/22

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