Development of a highly reliable helium refrigeration system––R&amp;D of a highly reliable helium refrigeration system (oil-free type)

Summary This study's main focus is to simulate and design a novel cryogenic system that produces liquid helium. The novelty of this research has two main parts: first, this system is able to produce large amounts of liquid helium at atmospheric pressure, and second, from an energy consumption point of view, it performs better than other processes of liquid helium production. The first and second laws of thermodynamic are used to investigate this process. In this novel cryogenic process, liquid helium is produced at three stages; first, the mainstream contains some helium enter to helium upgrader to increase helium concentration. After that, the stream with high helium concentration enters to pressure swing adsorption process, and pure helium is obtained. Finally, pure helium enters to cryogenic process and is liquified in an expander. The network consumption in this system is equal to 18.66 MW, and the proposed system's exergy efficiency is obtained at 23.4%. Also, the results show that this system can produce 196.5 kg/h liquid helium. In this research, Aspen HYSYS V10 and MATLAB software are used to simulate this cryogenic process. Finally, numerical assessment is done on the key parameters that influence the performance of the process.

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Investigation of a new energy‐efficient cryogenic process configuration for helium extraction and liquefaction

Pakzad

Mehrpooya

Zaitsev

2021

Int J Energy Res

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Design criteria of different heat exchangers for the optimal thermodynamic performance of regenerative refrigeration systems

Zhao

Chen

2016

Applied Thermal Engineering

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A comparative study of tribological characteristics of hydrogenated DLC film sliding against ceramic mating materials for helium applications

Ren

et al. 2018

Applied Surface Science

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Development of a highly reliable helium refrigeration system––R&D of a highly reliable helium refrigeration system (oil-free type)

Cited by 9 publications

References 4 publications

Investigation of a new energy‐efficient cryogenic process configuration for helium extraction and liquefaction

Investigation of a new energy‐efficient cryogenic process configuration for helium extraction and liquefaction

Design criteria of different heat exchangers for the optimal thermodynamic performance of regenerative refrigeration systems

A comparative study of tribological characteristics of hydrogenated DLC film sliding against ceramic mating materials for helium applications

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