Development of a Highly Reliable Helium Refrigeration System. R&amp;D of a Highly Reliable Helium Refrigeration System (Conventional Type).

Asakura, Hiroshi; Saji, Nobuyoshi; Yoshinaga, Seiichiro; Ishizawa, Takehiko; Ikeuchi, Masamitsu; Yanagi, Hideharu; Hirao, Yasuhiro; Kitagawa, Kazuhiro

doi:10.2221/jcsj.36.131

Cited by 2 publications

(4 citation statements)

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“…Few articles have examined the production of liquid helium, and some of them have different approaches for producing liquid helium from this study. Table 7 represents papers 9,46,47 used to validate the cryogenic system, and the results are listed in this table. Each paper is used to validate part of the current article, although none of these references are completely similar to this research.…”

Section: Process Designmentioning

confidence: 99%

“…Also, to validate some of these references, part of this study's simulation has to be changed. For example, for validation of this research with Reference 9, the inlet temperature, pressure, and composition of stream in this research are set as the reference and are used absorber module to purify the stream, and the final results are compared with the reference. For validation with Reference 46, the inlets stream's properties are set as the references, and an LNG heat exchanger is used in the simulation to compare the results between the simulation and the references.…”

Section: Process Designmentioning

confidence: 99%

“…In fact, SW shows how much power should be consumed to produce 1 kg/s liquid helium, and it is clear that the small amount of SW shows a better system. In Table 8, the present study is compared with another process of helium liquefaction 9,48‐51 …”

Section: Process Designmentioning

confidence: 99%

“…The research is designed to extract impurities from helium gas that affect the reliability and efficiency of the refrigeration's main equipment. The system works with 70 MW power consumption, 9320 h without failure, and 100 L/h liquefication rate 9 . The same study is investigated for oil‐free type compressors, and the result shows that the rate of liquefication increases to 160 L/h 10 .…”

Section: Introductionmentioning

confidence: 99%

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

2021

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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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Section: Process Designmentioning

confidence: 99%

Section: Process Designmentioning

confidence: 99%