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Sustainability
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Energy Storage and Sustainable Power Supply
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Energy Storage and Sustainable Power Supply

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Energy Sustainability".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 5314

Special Issue Editors

Prof. Dr. Moonyong Lee

E-Mail Website
Guest Editor
School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Interests: process design; process simulation; artificial intelligence (AI); renewable energy; engineering thermodynamics; hydrogen energy; process controls; distillation
Special Issues, Collections and Topics in MDPI journals
Dr. Ahmad Naquash

E-Mail Website
Guest Editor
School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Interests: energy storage; energy conversion; clean energy; process systems engineering

Special Issue Information

Dear Colleagues,

Energy storage plays a crucial role in ensuring a sustainable power supply in our modern world. With the growing share of renewable energy sources, such as solar and wind, energy generation has become more intermittent and unpredictable. Energy storage systems act as a crucial bridge between energy production and consumption. As we strive for a greener and more sustainable future, energy storage technologies will continue to evolve, which is vital to ensuring a reliable and eco-friendly power supply for future generations.

This Special Issue aims to include cutting-edge research in the field of all forms of energy storage and conversion systems and sustainable power supply.

In this Special Issue, original research articles and reviews are welcome. Research areas include, but are not limited to, the following:

  • Energy storage;
  • Energy conversion;
  • Sustainable power supply;
  • Renewable energy;
  • Power generation.

We look forward to receiving your contributions.

Prof. Dr. Moonyong Lee
Dr. Ahmad Naquash
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. Sustainability 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 2400 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

  • electrical energy storage systems
  • energy storage
  • power-to-X
  • energy conversion
  • power supply
  • renewable energy

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (3 papers)

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Research

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20 pages, 9023 KiB  
Article
Analyzing Energy Efficiency and Battery Supervision in Electric Bus Integration for Improved Urban Transport Sustainability
by Szabolcs Kocsis Szürke, Gábor Saly and István Lakatos
Sustainability 2024, 16(18), 8182; https://doi.org/10.3390/su16188182 - 19 Sep 2024
Viewed by 1402
Abstract
Addressing the critical challenge of reducing local emissions through the electrification of urban public transport, this research specifically focuses on integrating electric buses. The primary objectives are to evaluate energy efficiency and ensure battery cell supervision. Introducing electric buses plays a significant role [...] Read more.
Addressing the critical challenge of reducing local emissions through the electrification of urban public transport, this research specifically focuses on integrating electric buses. The primary objectives are to evaluate energy efficiency and ensure battery cell supervision. Introducing electric buses plays a significant role in reducing emissions, contributing to more sustainable urban transport systems. However, this transition introduces a set of new challenges, including the complexities of electric charging logistics, the establishment of new consumption standards, and the intricate relationships between distance traveled, ambient temperature, passenger load, and battery health. Methodologically, this study collects and examines factors impacting energy consumption, including external temperatures, bus conditions, road conditions, and driver behavior. By analyzing these variables, a baseline for actual consumption can be established, allowing for the calculation of an energy balance to identify energy inefficiencies. This enables the optimization of route planning, the strategic selection of stops, and the efficient scheduling of charging times, along with ensuring the proper scaling of the bus battery system. This study found that energy consumption peaked at 116.73 kWh/100 km in the lowest temperature range of −5 °C to 0 °C. Consumption decreased significantly with rising temperatures, dropping by 25 kWh between 5 °C and 10 °C and by an additional 10 kWh between 10 °C and 15 °C. Beyond 20 °C, variations were more influenced by route and driving style than by temperature. Route and driver variability significantly influenced energy consumption, with up to threefold differences across routes due to factors such as road type and traffic volume. Additionally, there was a 31.85% difference between the most and least efficient drivers, highlighting the critical impact of driving style. Furthermore, this study explores the assessment of battery systems through cell-level diagnostics to detect potential faults. Considering that buses are equipped with significantly more batteries than typical electric vehicles, detecting and localizing faults at the cell level is crucial to avoid the substantial costs and environmental impact associated with replacing large battery systems. Utilizing the results of this research and the applied examination methods, it is possible to enhance energy efficiency and extend battery life, thereby contributing to the development of more sustainable and cost-effective urban transport solutions. Full article
(This article belongs to the Special Issue Energy Storage and Sustainable Power Supply)
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29 pages, 5231 KiB  
Article
Fully Integrated Hybrid Solid Oxide Fuel Cell–Rankine Cycle System with Carbon Capture, Utilisation, and Storage for Sustainable Combined Heat and Power Production
by Sven Gruber, Klemen Rola, Darko Goričanec and Danijela Urbancl
Sustainability 2024, 16(11), 4389; https://doi.org/10.3390/su16114389 - 22 May 2024
Cited by 2 | Viewed by 1485
Abstract
The imperative to combat climate change necessitates the rapid implementation of technologically advanced, zero-emission renewable energy solutions, particularly considering the mounting energy demands and the pressing need to mitigate global warming. The proposed SOFC system, integrated with a modified Rankine Cycle and CCUS [...] Read more.
The imperative to combat climate change necessitates the rapid implementation of technologically advanced, zero-emission renewable energy solutions, particularly considering the mounting energy demands and the pressing need to mitigate global warming. The proposed SOFC system, integrated with a modified Rankine Cycle and CCUS technology, offers a highly efficient, renewable system with a net-zero carbon footprint, utilising green biogas as an alternative. The fully integrated system at continuous operation does not require outside heat sources and, besides, its main electricity production can supply 231 households with hot sanitary water. A base case and sensitivity analysis of the system was conducted studying different operating parameters. The base case simulation, conducted at SOFC/reformer operating temperatures of 850 °C/650 °C and operating parameters S/C = 2.5, Uf = 0.70 Ua = 0.1806, yielded an overall efficiency of 71.64%, with a 67.70% electrical efficiency. Further simulations demonstrated that a 1.60% and 1.53% increase in the overall and electrical efficiencies of the proposed alternative, respectively, would be achieved at SOFC/reformer operating temperatures of 950 °C/650 °C. The simulated hybrid system represents a competitive installation in the renewable energy market, which offers a viable and sustainable alternative to traditional forms of energy generation. Full article
(This article belongs to the Special Issue Energy Storage and Sustainable Power Supply)
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Review

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18 pages, 2585 KiB  
Review
A Review on Liquid Hydrogen Storage: Current Status, Challenges and Future Directions
by Ahmad Naquash, Neha Agarwal and Moonyong Lee
Sustainability 2024, 16(18), 8270; https://doi.org/10.3390/su16188270 - 23 Sep 2024
Cited by 1 | Viewed by 2077
Abstract
The growing interest in hydrogen (H2) has motivated process engineers and industrialists to investigate the potential of liquid hydrogen (LH2) storage. LH2 is an essential component in the H2 supply chain. Many researchers have studied LH2 [...] Read more.
The growing interest in hydrogen (H2) has motivated process engineers and industrialists to investigate the potential of liquid hydrogen (LH2) storage. LH2 is an essential component in the H2 supply chain. Many researchers have studied LH2 storage from the perspective of tank structure, boil-off losses, insulation schemes, and storage conditions. A few review studies have also been published considering LH2 storage; however, most are simply collections of previous articles. None of these review articles have critically evaluated the research articles. In this review study, recent reports, conceptual studies, and patents have been included and critically discussed. Further, challenges and recommendations have been listed based on the literature review. Our results suggest that the multi-layer insulation scheme and integrated refrigeration system can effectively reduce boil-off losses. However, boil-off losses from storage tanks during transportation are the least discussed and must be addressed. The cost of an LH2 storage tank is high, but it can be reduced with advancements in materials and the utilization of latest technologies. The present challenges and future directions for LH2 storage include minimizing and utilizing boil-off losses, improving insulation schemes, and ensuring cost-effective large-scale LH2 storage. This review study can be fundamental for process engineers and new academic researchers to design energy-efficient and cost-effective LH2 storage systems. Full article
(This article belongs to the Special Issue Energy Storage and Sustainable Power Supply)
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