Small-scale hydrogen liquefaction with a two-stage Gifford–McMahon cycle refrigerator

We manufactured a small-scale hydrogen liquefier with a two-stage 10 K Gifford–McMahon cycle (GM) refrigerator. It had a hydrogen tank with the volume of 30 L that was surrounded by a radiation shield. This liquefier continuously liquefied gaseous hydrogen with the volumetric flow rate of 12.1 NL/mi...

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Bibliographic Details
Published in:International journal of hydrogen energy 2010-09, Vol.35 (17), p.9088-9094
Main Authors: Nakano, Akihiro, Maeda, Tetsuhiko, Ito, Hiroshi, Masuda, Masao, Kawakami, Yoshiaki, Kato, Atsushi, Tange, Manabu, Takahashi, Toru, Matsuo, Masahiro
Format: Article
Language:English
Subjects:
Alternative fuels. Production and utilization
Applied sciences
Energy
Exact sciences and technology
Fuels
GM refrigerator
Hydrogen
Hydrogen energy system
Hydrogen liquefaction
Hydrogen storage
Liquefaction
Liquefied
Liquefiers
Liquid hydrogen
Pulse tubes
Refrigerators
Shields
Tanks
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Summary:We manufactured a small-scale hydrogen liquefier with a two-stage 10 K Gifford–McMahon cycle (GM) refrigerator. It had a hydrogen tank with the volume of 30 L that was surrounded by a radiation shield. This liquefier continuously liquefied gaseous hydrogen with the volumetric flow rate of 12.1 NL/min. It corresponds to the liquefaction rate of 19.9 L/day for liquid hydrogen. We proposed a simple estimation method for the liquefaction rate and confirmed that the estimation method well explained the experimental result. To evaluate the estimation method, we applied the estimation method to other liquefiers. In case of a liquefier with the GM refrigerator, we confirmed the estimation method was available for predicting the liquefaction rate. However, in case of a liquefier with the pulse tube refrigerator, the results of the estimation indicated small values as compared with the experimental data. We discuss the details about the estimation method of the liquefaction rate for the small-scale liquefiers.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2010.05.104