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Hydrogen Energy Technologies: Recent Advances in Production, Storage and Applications II

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A5: Hydrogen Energy".

Deadline for manuscript submissions: 28 February 2025 | Viewed by 997

Special Issue Editors


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Guest Editor
1. Centre for Renewable Energy & Storage, Suresh Gyan Vihar University, Jaipur 302017, India
2. Natural Science Centre for Basic Research and Development, Hiroshima University, Higashi-Hiroshima 739-8530, Japan
Interests: hydrogen energy; hydrogen storage materials; metal hydrides; complex hydrides; lithium ion battery
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Guest Editor
Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
Interests: hydrogen storage; inorganic hydrides; ammonia; ammonolysis; electrolysis; magnesium hydride; amide-imide; chemical compressor
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Today’s fast-growing and developing world is facing an increased energy demand and needs alternative energy sources to fulfill it. This is the right time to switch from traditional energy resources to alternative and renewable energy sources which could reduce the emissions of unwanted greenhouse gases and control the global warming problem. Hydrogen has been proposed as an efficient energy carrier, which is capable of replacing fossil fuel-based energy infrastructure due to its cleanliness, unlimited supply, and higher energy content per unit mass.

To adopt hydrogen as an energy carrier, several issues, including its clean production, storage, and efficient application, have been addressed during the last few decades. Continuous efforts are being carried out all over the world to make the hydrogen dream come true.

This Special Issue will focus on the recent advancements in the field and invite researchers to submit their research articles focusing on the production, storage, and applications of hydrogen.

Prof. Dr. Ankur Jain
Prof. Dr. Takayuki Ichikawa
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • hydrogen production
  • bio hydrogen production
  • catalytic hydrogen production
  • thermochemical water splitting
  • solar hydrogen
  • metal hydrides
  • complex hydrides
  • chemical hydrides
  • novel analytical and computational techniques for hydrogen storage
  • hydrogen compressor
  • hydrogen fuel cells
  • hydrogen systems modeling

Published Papers (1 paper)

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Research

18 pages, 5843 KiB  
Article
Fast Design and Numerical Simulation of a Metal Hydride Reactor Embedded in a Conventional Shell-and-Tube Heat Exchanger
by Ruizhe Ran, Jing Wang, Fusheng Yang and Rahmatjan Imin
Energies 2024, 17(3), 712; https://doi.org/10.3390/en17030712 - 1 Feb 2024
Viewed by 791
Abstract
The purpose of this work is to present a convenient design approach for metal hydride reactors that meet the specific requirements for hydrogen storage. Three methods from the literature, the time scale, the acceptable envelope, and the reaction front, are used to estimate [...] Read more.
The purpose of this work is to present a convenient design approach for metal hydride reactors that meet the specific requirements for hydrogen storage. Three methods from the literature, the time scale, the acceptable envelope, and the reaction front, are used to estimate the maximum thickness of the bed allowing for sufficient heat transfer. Further heat transfer calculations are performed within the framework of standardized heat exchanger via the homemade design software, to generate the complete geometry and dimensions of the reactor. LaNi5 material packed in tubular units based on conventional shell-and-tube heat exchanger is selected for analysis for an expected charging time of 500 s, 1000 s, and 1500 s. Apparently, the smaller the expected charging time, the smaller the bed thickness and hence the diameter of the tubular units. After comparison, the method of reaction front was adopted to output standard tube diameters and calculate the weight of the reactor. Significant weight differences were found to result from the varying wall thickness and number of tubes. In general, the shorter the expected charging time, the more tubular units with a small diameter will be built and the heavier the reactor. Fluent 2022 R2 was used to solve the reactor model with a tube diameter of 50 mm supposed to fulfill a charging time of 1500 s. The simulation results revealed that the reaction fraction reaches its maximum and the hydrogen storage process is completed at 500 s. However, because the calculation is conducted on meeting the heat exchange requirements, the average temperature of the bed layer is close to the initial temperature of 290 K and stops changing at 1500 s. The applicability of the method to the design of metal hydride reactors is thus confirmed by the temperature and reaction fraction judgment criteria. Full article
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