Green Hydrogen Production and Storage

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 1378

Special Issue Editors


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Guest Editor
Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Viale dell'Università, 03043 Cassino, FR, Italy
Interests: energy saving; improvement of energy efficiency of conventional power plants; novel plant configurations for power generation and poly-generation based on low environmental impact and high efficiency technologies (high and Low temperature fuel cells, HT-PEMFC, hydrogen)
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Guest Editor
Industrial Engineering Department, University of Salerno, 84084 Fisciano, SA, Italy
Interests: fuel cell, hydrogen production and distribution; hydrogen infrastructure; renewable sources; sustainability; ports decarbonization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Hydrogen is increasingly considered an important player in international strategies for the decarbonization of different sectors, from industry to power generation and transport. Research projects and industrial applications are addressing different components of the hydrogen pathways, which include production, storage, transmission, distribution, and final uses.

Hydrogen pathways can be made completely sustainable if the energy required for its production is supplied from renewable sources (solar, wind, hydro, biomass), generating so-called “Green Hydrogen”.

The main pathway for the production of green hydrogen is based on power to gas (P2G) technologies, where renewable electricity is used for water electrolysis. Apart from electrolysis, researchers and various industry players are working to develop and produce green hydrogen using multiple sources, methods, and technologies, including thermochemical and biological processes. The production cost is a major barrier to the widespread use of green hydrogen.

The exploitation of green hydrogen is not only dependent on optimizing the production, but also, storage is a crucial issue due to the low volumetric energy density of hydrogen. To find the optimal solutions in terms of efficiency, volume, weight, safety, and costs according to the specific application, technological efforts both at system level and component level are required.

This Special Issue aims to encourage scientists, engineers, and researchers to address current state-of-the-art technologies, models, and solutions focused on the different green hydrogen pathways including production and storage systems.

Original research contributions and reviews dealing with system designs and techno-economic feasibility studies are welcome.

Prof. Dr. Alessandra Perna
Prof. Dr. Mariagiovanna Minutillo
Guest Editors

Manuscript Submission Information

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Keywords

  • green hydrogen production
  • decarbonization
  • renewable sources
  • sustainability
  • hydrogen storage
  • levelized cost of hydrogen

Published Papers (1 paper)

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Research

16 pages, 5160 KiB  
Article
Feasibility Analysis of Adopting the Hydrogen Hydrostatic Thrust Bearing
by Mingchen Qiang, Mingzhe Liu, Qi Zhao, Yu Hou, Shaohang Yan and Tianwei Lai
Appl. Sci. 2023, 13(16), 9372; https://doi.org/10.3390/app13169372 - 18 Aug 2023
Cited by 1 | Viewed by 762
Abstract
The hydrogen hydrostatic thrust bearing (HHTB) is a key component of hydrogen liquefaction that impacts turbo-expander characteristics. To analyze the feasibility of using the HHTB in this application, characteristics of HHTBs were calculated using a CFD model. To upgrade the performance of the [...] Read more.
The hydrogen hydrostatic thrust bearing (HHTB) is a key component of hydrogen liquefaction that impacts turbo-expander characteristics. To analyze the feasibility of using the HHTB in this application, characteristics of HHTBs were calculated using a CFD model. To upgrade the performance of the HHTB, the impacts of bearing structure and operating parameters on static performance were investigated. Dynamic characteristics of the HHTB were studied using the dynamic grid method. It was found that the load capacity of the HHTB is less than that of helium-lubricated bearings but higher than that of air- and methane-lubricated bearings. The turbulent kinetic energy of hydrogen is higher than that of other gases. Load capacity can be enhanced through boosting supplied pressure, expanding the diameter of supply orifices, reducing gas film clearance, increasing the orifices quantity and setting a circumferential groove. A reduction in disturbance amplitude slightly increased the bearing’s dynamic stiffness. The dynamic stability of the HHTB was improved by a small film clearance in response to disturbance. Full article
(This article belongs to the Special Issue Green Hydrogen Production and Storage)
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