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Processes
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Energy Conversion and Storage Processes
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Energy Conversion and Storage Processes

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 4439

Special Issue Editors

Dr. Tohid N. Borhani

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Guest Editor
School of Engineering, Division of Chemical Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK
Interests: process modeling and simulation; chemometric and AI; energy conversion and storage
Special Issues, Collections and Topics in MDPI journals
Dr. Peter Clough

E-Mail Website
Guest Editor
Energy and Power, School of Water, Energy and Environment, Cranfield University, Bedford, Bedfordshire MK43 0AL, UK
Interests: hydrogen; carbon capture and storage; sorption enhanced steam reforming; machine learning
Special Issues, Collections and Topics in MDPI journals
Dr. Aman Dhir

E-Mail Website
Guest Editor
Chemical Engineering, Faculty of Science and Engineering, University Of Wolverhampton, Wolverhampton WV1 1LY, UK
Interests: solid oxide fuel cells (SOFC); portable SOFC hydrocarbon reforming for SOFC; SOFC anode material development; modelling SOFC stack and system design; hydrogen production from electrolysis; hydrogen vehicles
Special Issues, Collections and Topics in MDPI journals
Dr. Navid Khallaghi

E-Mail Website
Guest Editor
Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK
Interests: process modelling and simulation; techno-economic analysis; hydrogen production; absorption; gasification

Special Issue Information

Dear Colleagues,

Energy conversion and storage has been a hit subject in recent years by increasing the energy demand and also environmental issues related to global warming caused by fossil fuels consumption and CO2 emission. To significantly reduce the impact of climate breakdown, the global mean temperature increase needs to be limited to 1.5 °C above pre-industrial levels. The new and optimum methods of energy conversion and storage could be promising to reduce the consumption of fossil fuels and hence reduce the CO2 emission to the atmosphere.

This Special Issue on “Energy Conversion and Storage Processes” aims to curate novel advances in the energy-related field studies, mainly focused on optimisation and analysis of different methods of conversion and storage. Topics include but are not limited to:

  • Experimental and modelling studies of energy conversion methods;
  • Experimental and modelling studies of energy storage methods;
  • Experimental and modelling studies of renewable energy productions; and
  • Data analysis and machine learning applications in energy-related subjects.

Dr. Tohid N. Borhani
Dr. Peter Clough
Dr. Aman Dhir
Dr. Navid Khallaghi
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. Processes is an international peer-reviewed open access monthly 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

  • energy conversion
  • biofuel
  • energy storage
  • renewable energy
  • hydrogen production

Published Papers (2 papers)

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Research

18 pages, 5778 KiB  
Article
Numerical Study on the Influence of Well Layout on Electricity Generation Performance of Enhanced Geothermal Systems
by Yuchao Zeng, Fangdi Sun and Haizhen Zhai
Processes 2021, 9(8), 1474; https://doi.org/10.3390/pr9081474 - 23 Aug 2021
Cited by 4 | Viewed by 1504
Abstract
The energy efficiency of the enhanced geothermal system (EGS) measures the economic value of the heat production and electricity generation, and it is a key indicator of system production performance. Presently there is no systematic study on the influence of well layout on [...] Read more.
The energy efficiency of the enhanced geothermal system (EGS) measures the economic value of the heat production and electricity generation, and it is a key indicator of system production performance. Presently there is no systematic study on the influence of well layout on the system energy efficiency. In this work we numerically analyzed the main factors affecting the energy efficiency of EGS using the TOUGH2-EOS1 codes at Gonghe Basin geothermal field, Qinghai province. The results show that for the reservoirs of the same size, the electric power of the three horizontal well system is higher than that of the five vertical well system, and the electric power of the five vertical well system is higher than that of the three vertical well system. The energy efficiency of the three horizontal well system is higher than that of the five vertical well system and the three vertical well system. The reservoir impedance of the three horizontal well system is lower than that of the three vertical well system, and the reservoir impedance of the three vertical well system is lower than that of the five vertical system. The sensitivity analysis shows that well spacing has an obvious impact on the electricity production performance; decreasing well spacing will reduce the electric power, reduce the energy efficiency and only have very slight influence on the reservoir impedance. Fracture spacing has an obvious impact on the electricity production performance; increasing fracture spacing will reduce the electric power and reduce the energy efficiency. Fracture permeability has an obvious impact on the electricity production performance; increasing fracture permeability will improve the energy efficiency and reduce the reservoir impedance. Full article
(This article belongs to the Special Issue Energy Conversion and Storage Processes)
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16 pages, 24333 KiB  
Article
Numerical Study on Application Conditions of Equivalent Continuum Method for Modeling Heat Transfer in Fractured Geothermal Reservoirs
by Yuchao Zeng, Fangdi Sun and Haizhen Zhai
Processes 2021, 9(6), 1020; https://doi.org/10.3390/pr9061020 - 10 Jun 2021
Cited by 2 | Viewed by 1708
Abstract
The equivalent continuum method an effective approach for modeling heat transfer in fractured geothermal reservoirs. However, presently there is a lack of systematical and profound study on application conditions of the equivalent porous media (EPM) method. In this study, we numerically investigated the [...] Read more.
The equivalent continuum method an effective approach for modeling heat transfer in fractured geothermal reservoirs. However, presently there is a lack of systematical and profound study on application conditions of the equivalent porous media (EPM) method. In this study, we numerically investigated the application conditions of the EPM method based on geological data of Yangbajing geothermal field. The results indicate that when fracture spacing is within 3–25 m, the results of the EPM method are basically in the same levels as those of the MINC method. However, when the fracture spacing is within 25–300 m, differences of the EPM method from the MINC method increase with the fracture spacing, so when the fracture spacing is within 25–300 m, it is unreasonable to adopt the EPM method to simulate the fractured reservoirs. With the fracture spacing increasing within 25–300 m, the system production temperature and electric power will gradually decrease; the injection pressure, reservoir impedance and pump power will gradually increase; and the energy efficiency will gradually decrease. Full article
(This article belongs to the Special Issue Energy Conversion and Storage Processes)
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