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CO2 Technologies for Energy Conversion and Waste Heat Recovery

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "B3: Carbon Emission and Utilization".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 187

Special Issue Editors


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Guest Editor
Institute of Energy Futures, Brunel University London, Uxbridge UB8 3PH, UK
Interests: energy conversion; waste heat recovery; dynamic simulations; control systems; power-to-X

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Guest Editor
Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Cagliari, Italy
Interests: renewable-energy power plants; hybrid energy systems; hydrogen-integrated energy systems; thermal energy storage; efficiency in energy systems

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Guest Editor
Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Cagliari, Italy
Interests: energy system modelling and optimization; advanced energy storage systems; hydrogen-integrated energy systems; power-to-X

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Guest Editor
Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Cagliari, Italy
Interests: energy system modelling; energy storage system integration; design optimization; pumped thermal energy storage; ORC power system
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Special Issue Information

Dear Colleagues,

Carbon Dioxide (CO2) technologies can play an important role in improving the energy efficiency of existing industrial and power generation facilities, reducing the environmental impact of heating and cooling systems, as well as facilitating the penetration of distributed power systems and renewables in the energy mix.

The thermophysical properties of CO2 indeed can bring many advantages in several applications. Compared to conventional technologies, supercritical CO2 power cycles allow for instance a more efficient exploitation of waste heat sources at higher temperatures and lower scales (down to hundreds of kW), as well as renewables energy sources like solar (Concentrated Solar Power, CSP), geothermal energy and nuclear fusion reactors. Furthermore, they are the most promising candidate for next generation nuclear fission power plants. If used into power plants from fossil fuels they could enable a more effective and economically feasible carbon capture and storage. For heating and cooling, CO2 represents a much more environmental friendly fluid compared to conventional refrigerants, and it is one of the most suitable fluid candidate for the development of high temperature heat pumps, which may play an important role for energy storage as well as the decarbonisation of heat in industrial applications and buildings. The use of CO2 as working fluid can also favor waste heat recovery combining Joule-based and ORC-based in cascade power unit.

Many challenges are still hindering the commercialization of such technologies as termodynamic design and optimisation, turbomachinery development, dynamics and control and suitable auxiliary equipments as bearings, seals and valves. New approaches and research is then required to address these critical aspects.

Dr. Matteo Marchionni
Dr. Luca Migliari
Dr. Victor Tola
Dr. Mario Petrollese
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

  • carbon dioxide
  • energy conversion
  • CO2 heat pumps
  • SCO2 power cycles
  • CO2 refrigerations
  • energy storage
  • waste heat recovery
  • distributed power systems
  • SCO2 power systems
  • SCO2 power technology

Published Papers

This special issue is now open for submission.
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