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Applications of Microfluidic Power Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D2: Electrochem: Batteries, Fuel Cells, Capacitors".

Deadline for manuscript submissions: 20 June 2024 | Viewed by 1111

Special Issue Editors


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Guest Editor
State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
Interests: fuel cells; microfluidic technology; heat and mass transfer in pore structures

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Guest Editor
MOE Key Laboratory of Thermo-Fluid Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Interests: porous media; fuel cell; topology optimization; heat and mass transfer

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Guest Editor
Unmanned System Research Institute, Northwestern Polytechnical University, Xi'an 710072, China
Interests: porous material; topology optimization; UAV design; fuel cells

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Guest Editor
Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400044, China
Interests: heat and mass transfer in electrochemical devices; fuel cells; electrolyzers; CO2 reduction

Special Issue Information

Dear Colleagues,

The deep interest in the field of microfluidic power systems can explicitly be attributed to the mission of producing miniature power sources for portable and minimized electronic devices. Microfluidic power systems, including fuel cells, solar cells, and batteries, are considered promising alternative techniques to produce electricity with advantages of high efficiency, cost effectiveness, and environmental friendliness. However, the applications of microfluidic power systems are not without challenges, including key catalyst materials, energy efficiency, cost optimization, and modular design.

To make contributions to this trend, the main objective of this Special Issue, titled “Applications of Microfluidic Power Systems”, is dedicated to highlighting research interests in theoretical, methodological, and empirical as well as review articles that provide a critical overview of the state of the art of microfluidic technologies.

Dr. Zhi Liu
Dr. Hui Wang
Dr. Heye Xiao
Dr. Yang Wang
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

  • fuel cells
  • microfluidic devices
  • multiple phase flow
  • electrochemical reaction
  • modular design
  • electronic diagnostic devices

Published Papers (2 papers)

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Research

13 pages, 6684 KiB  
Article
Numerical Study on Effect of Flow Field Configuration on Air-Breathing Proton Exchange Membrane Fuel Stacks
by Zhi Liu, Tingting Sun and Fuqiang Bai
Energies 2024, 17(11), 2501; https://doi.org/10.3390/en17112501 - 23 May 2024
Viewed by 314
Abstract
Air-breathing proton exchange membrane fuel cells (PEMFCs) show enormous potential in small and portable applications because of their brief construction time without the need for gas supply, humidification and cooling devices. In the current work, a 3D multiphase model of single air-breathing PEMFCs [...] Read more.
Air-breathing proton exchange membrane fuel cells (PEMFCs) show enormous potential in small and portable applications because of their brief construction time without the need for gas supply, humidification and cooling devices. In the current work, a 3D multiphase model of single air-breathing PEMFCs is developed by considering the contact resistance between the gas diffusion layer and bipolar plate and the anisotropic thermal conduction and electric conductive in the through-plane and in-plane directions. The 3D model presents good grid independence and agreement with the experimental polarization curve. The single PEMFC with the best open area ratio of 55% achieves the maximum peak power density of 179.3 mW cm−2. For the fuel cell stack with 10 single fuel cells, the application of the anode window flow field is beneficial to improve the stack peak power density compared to the anode serpentine flow field. The developed model is capable of providing assistance in designing high-performance air-breathing PEMFC stacks. Full article
(This article belongs to the Special Issue Applications of Microfluidic Power Systems)
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17 pages, 1800 KiB  
Article
Techno-Economic Assessment of a Full-Chain Hydrogen Production by Offshore Wind Power
by Jinyong Lei, Hang Zhang, Jun Pan, Yu Zhuo, Aijun Chen, Weize Chen, Zeyu Yang, Keying Feng, Lincai Li, Bowen Wang, Lili Jiao and Kui Jiao
Energies 2024, 17(11), 2447; https://doi.org/10.3390/en17112447 - 21 May 2024
Viewed by 537
Abstract
Offshore wind power stands out as a promising renewable energy source, offering substantial potential for achieving low carbon emissions and enhancing energy security. Despite its potential, the expansion of offshore wind power faces considerable constraints in offshore power transmission. Hydrogen production derived from [...] Read more.
Offshore wind power stands out as a promising renewable energy source, offering substantial potential for achieving low carbon emissions and enhancing energy security. Despite its potential, the expansion of offshore wind power faces considerable constraints in offshore power transmission. Hydrogen production derived from offshore wind power emerges as an efficient solution to overcome these limitations and effectively transport energy. This study systematically devises diverse hydrogen energy supply chains tailored to the demands of the transportation and chemical industries, meticulously assessing the levelized cost of hydrogen (LCOH). Our findings reveal that the most cost-efficient means of transporting hydrogen to the mainland is through pipelines, particularly when the baseline distance is 50 km and the baseline electricity price is 0.05 USD/kWh. Notably, delivering hydrogen directly to the port via pipelines for chemical industries proves considerably more economical than distributing it to hydrogen refueling stations, with a minimal cost of 3.6 USD/kg. Additionally, we assessed the levelized cost of hydrogen (LCOH) for supply chains that transmit electricity to ports via submarine cables before hydrogen production and subsequent distribution to chemical plants. In comparison to offshore hydrogen production routes, these routes exhibit higher costs and reduced competitiveness. Finally, a sensitivity analysis was undertaken to scrutinize the impact of delivery distance and electricity prices on LCOH. The outcomes underscore the acute sensitivity of LCOH to power prices, highlighting the potential for substantial reductions in hydrogen prices through concerted efforts to lower electricity costs. Full article
(This article belongs to the Special Issue Applications of Microfluidic Power Systems)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Heat and Mass Transfer Process in Fuel Cell
Authors: Hui Wang
Affiliation: School of Energy and Power Engineering, Xi'an Jiaotong University, China

Title: Molecular Study of Transport Mechanism for Proton and Water in PEM
Authors: Xueliang Wang
Affiliation: School of Energy and Power Engineering, Xi'an Jiaotong University, China

Title: Electronic Microfluidic Diagnostic Device
Authors: Zedong Li
Affiliation: School of Life Science and Technology, Xi'an Jiaotong University, China

Title: Two Phase Transport in Microfluidic Fuel Cell
Authors: Yang Wang
Affiliation: Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, China

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