energies-logo

Journal Browser

Journal Browser

Supercritical CO2 Power Cycles

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "B: Energy and Environment".

Deadline for manuscript submissions: 10 September 2025 | Viewed by 443

Special Issue Editors

School of Energy and Power Engineering, Shandong University, Jinan 250061, China
Interests: design and optimization of supercritical CO2 radial inflow turbines; turbomachinery (axial and radial) for energy conversion and propulsion; modeling of fluid- and thermodynamic systems (mainly sCO2 Brayton cycles); clean combustion and pollutant control for biomass fuels
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
Interests: thermodynamics; thermal power generation; energy storage; carbon capture utilization and storage
School of Navigation, Northwestern Polytechnical University, Xi'an 710072, China
Interests: turbomachinery; multiphase flow; compressible flow
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
Interests: thermodynamics; process splitting analysis; zero-emission power cycles; synthetic utilization of multienergy

E-Mail Website
Guest Editor
School of Energy and Power Engineering, Shandong University, Jinan 250061, China
Interests: concentrated solar power; thermal power generation; supercritical CO2 Brayton cycle; thermionic energy conversion

Special Issue Information

Dear Colleagues,

Supercritical CO2 power cycles have advantages such as low critical parameters, high efficiency, a compact system, and suitability for variable-load and highly flexible operation. They are expected to be applied in many fields, such as new concentrated solar power generation, nuclear power generation, coal-fired power plants, and ship power systems. In recent years, supercritical CO2 power cycles have been the focus of a great deal of research, which has made significant progress in various aspects. The research and development of this technology and its future mature application will enable humanity to make significant progress in the fields of energy and the environment.

This Special Issue’s objective is to showcase and spread the latest progress in the theory, modeling, design, application, components, system equipment, and control of all types of supercritical CO2 power cycles.

Topics suitable for publication involve, yet are not restricted to, the following:

  • Thermodynamic analysis, system integration, and operation control of all types of supercritical CO2 power cycles;
  • Analysis and experiments of components or systems for supercritical CO2 power cycles;
  • Flow of supercritical CO2 and fluid machinery (compressors and turbines);
  • Heat transfer of supercritical CO2 and heat exchangers;
  • Design, physical properties, and power cycles of composite working fluids based on supercritical CO2;
  • Phase transition and pseudo-phase transition of supercritical CO2;
  • Theory and technology of supercritical CO2 energy storage.

Dr. Jianhui Qi
Prof. Dr. Cheng Xu
Dr. Kan Qin
Dr. Tuantuan Xin
Dr. Hao Qiu
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

  • supercritical CO2
  • Brayton cycle
  • energy storage cycle
  • flow and fluid machinery
  • heat transfer
  • modeling
  • design
  • application
  • control

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

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

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

21 pages, 6358 KiB  
Article
Experimental Study and Performance Analysis of a Recuperative Supercritical CO2 Brayton Cycle
by Shucheng Zhang, Juntao Ke, Min Liu, Pingjian Ming and Guopeng Yu
Energies 2025, 18(11), 2986; https://doi.org/10.3390/en18112986 - 5 Jun 2025
Viewed by 263
Abstract
To investigate the operational characteristics of the supercritical carbon dioxide (S-CO2) Brayton cycle and enhance its applicability in practical operating conditions for micro-scale reactors, an experimental platform for a recuperative S-CO2 Brayton cycle is constructed and investigated. Several controllable operational [...] Read more.
To investigate the operational characteristics of the supercritical carbon dioxide (S-CO2) Brayton cycle and enhance its applicability in practical operating conditions for micro-scale reactors, an experimental platform for a recuperative S-CO2 Brayton cycle is constructed and investigated. Several controllable operational parameters, including compressor pump frequency, expansion valve opening, and electric heating power, each intrinsically linked to the thermal characteristics of its corresponding equipment, as well as the cooling water flow rate, are systematically adjusted and analyzed. Experimental results demonstrate that the cooling water flow rate has a significantly greater impact on the temperature and pressure of the cycle system compared to other operational parameters. Based on these findings, steady-state experiments are conducted within a pressure range of 8 MPa to 15 MPa and a temperature range of 70 °C to 150 °C. It is observed that the heat exchange capacity of the recuperator decreases as the cooling water flow rate is reduced, suggesting that sufficient cooling efficiency is required to maximize the recuperative function. Under the condition of a maximum system temperature of 150 °C, the isentropic efficiency of the expansion valve decreases with an increase in the inlet pressure of the valve. However, the overall thermal efficiency of the cycle system requires further calculation and assessment following the optimization of the experimental platform. The result of validation of experimental results is less than 20%. The findings presented in this study offer essential data that encompass the potential operational conditions of the CO2 Brayton cycle section applicable to small-scale reactors, thereby providing a valuable reference for the design and operation of practical cycle systems. Full article
(This article belongs to the Special Issue Supercritical CO2 Power Cycles)
Show Figures

Figure 1

Back to TopTop