Cited by 266Thermodynamic and Exergetic Analyses of Power and Cooling SystemsSpacecraft and Cryogenic TechnologiesRefrigeration and Air Conditioning Technologies

Introducing and energy analysis of a novel cryogenic hydrogen liquefaction process configuration

Sadaghiani, Mirhadi S., Mehrpooya, Mehdi·2017·International Journal of Hydrogen Energy

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Crossref · 10.1016/j.ijhydene.2017.01.136

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55 of 55 references verified0 citation errors · 0 not checkable

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  • If H2 liquefaction is carried out without catalytic conversion of o- to p-H2, the ortho isomer will be at a higher concentration than its equilibrium concentration and will spontaneously convert to the para isomer, generating a significant amount of heat.

    “If H2 liquefaction is carried out without catalytic conversion of o- to p-H2, the ortho isomer will be at a higher concentration than its equilibrium concentration and will thus spontaneously convert to the para isomer, generating a significant amount of heat [50].”
  • In the second stage, the pre-cooled H2 passes through a heat exchanger to reach 30 K through a cryocooling system, which operates with refrigeration cycles such as the helium reverse Brayton cycle or the H2 Claude cycle.

    “In the second stage, the pre-cooled H2 passes through a heat exchanger to reach 30 K through a cryocooling system, which operates with refrigeration cycles such as the helium reverse Brayton cycle (possibly with H2 as well, but there is a minimum temperature limitation [80]) or the H2 Claude cycle [79].”
  • Liquefying H2 from ambient conditions theoretically and ideally requires about 10 times more energy than LNG, i.e., 3.92 kWh/kg LH2 versus 0.31 kWh/kg LNG.

    “To give figures, liquefying H2 from ambient conditions theoretically and ideally requires about 10 times more energy than LNG, i.e., 3.92 kWh/kg LH2 versus 0.31 kWh/kg LNG [79].”
  • The Claude process has higher liquefaction efficiency and lower power consumption than the L-H process.

    “The Claude process has higher liquefaction efficiency and lower power consumption than the L–H process.170”
  • Ghorbani et al. found that the developed process' SEC decreased from 4.410 to 4.022 kWh/kgLH2 compared to the basic plant, and its exergy efficiency increased from 55.47% to 73.75%.

    “The results showed that the developed process’ SEC decreased from 4.410 to 4.022 kWh/kgLH2 compared to the basic plant,170 and its exergy efficiency increased from 55.47% to 73.75%.”

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Authors
Sadaghiani, M. S., & Mehrpooya, M.
Affiliations
University of Tehran (IR)
Corresponding author
Mehrpooya, Mehdi
Venue
International Journal of Hydrogen Energy
Publisher
Elsevier BV
Published
2017-03
Volume
42
Issue
9
Pages
6033-6050
ISSN
0360-3199 (ISSN-L)
OpenAlex
W2587279559
Cited by
266
References
59
Citations by year
2026: 33 · 2025: 39 · 2024: 42 · 2023: 41 · 2022: 33 · 2021: 28 · 2020: 16 · 2019: 16 · 2018: 10 · 2017: 8
FWCI
10.63
Type
journal article
Language
en
Open access
closed
Locations
International Journal of Hydrogen Energy (publishedVersion)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Thermodynamic and Exergetic Analyses of Power and Cooling Systems
  • Physical Sciences › Engineering › Aerospace Engineering › Spacecraft and Cryogenic Technologies
  • Physical Sciences › Engineering › Mechanical Engineering › Refrigeration and Air Conditioning Technologies
Keywords
hydrogen liquefaction, cryogenic liquefaction, refrigerant mixtures, two-stage refrigeration cycle, energy analysis, exergy analysis, coefficient of performance, exergy efficiency, heat exchanger design, expander design, power consumption

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