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Applied Sciences
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Application of Supercritical Carbon Dioxide Power Cycles for Thermal Energy...
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Application of Supercritical Carbon Dioxide Power Cycles for Thermal Energy Storage

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Thermal Engineering".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 3431

Special Issue Editors

Dr. Rafael Guédez

E-Mail Website
Guest Editor
Department of Energy Technology, KTH Royal Institute of Technology, Brinellvägen 68, 100 44 Stockholm, Sweden
Interests: renewable energy; concentrating solar power; advanced energy systems; energy storage; power-to-X; thermoeconomics
Special Issues, Collections and Topics in MDPI journals
Dr. Silvia Trevisan

E-Mail Website
Guest Editor
Unit of Heat and Power Technology, The Royal Institute of Technology (KTH), Stockholm, Sweden
Interests: energy; renewable energy; energy storage; thermal energy storage
Dr. Stefano Barberis

E-Mail Website
Guest Editor
Department of Mechanical Engineering - Thermochemical Power Group, Università degli Studi di Genova, Genoa, Italy
Interests: smart grids; energy storage systems; renewable energy

Special Issue Information

Dear Colleagues,

High efficiency, flexibility, and competitive capital costs make supercritical CO2 (sCO2) systems a promising technology for renewable power generation in a low carbon energy scenario. Recently, innovative supercritical systems have been studied showing promising superior techno-economic features than steam cycles or ORC, particularly at high temperatures. Currently, our first experimental experiences are aiming to explore sCO2 Brayton power plants and their coupling with power systems with low carbon heat sources, such as waste heat, concentrated solar energy, and geothermal.

Application of Supercritical Carbon Dioxide Power Cycles for Thermal Energy Storage is a Special Issue in Applied Sciences for those who would like to publish original papers about technologies, models, and methodologies that could strengthen sCO2 power cycles development. This Special Issue aims at presenting important results of work in sCO2 advanced energy systems and their application for energy storage purpose. Works can be applied research, development of new procedures, energy systems (at cycle innovation and components level), original application of existing knowledge, or new design and modelling approaches.

Papers in the relevant area of sCO2 power cycles, including, but not limited to, the following, are invited:

  1. sCO2 cycles for power production and energy storage solutions: steady state and dynamic modelling approach;
  2. sCO2 cycles for power production and energy storage solutions: testing experiences;
  3. sCO2 turbomachinery: design, modelling, and prototyping;
  4. sCO2 heat exchangers: design, modelling, and prototyping;
  5. Innovative sCO2-based cycles for storage applications integrated with TES;
  6. Control, operation, and planning of sCO2 power plants.

Dr. Rafael Guédez
Dr. Silvia Trevisan
Dr. Stefano Barberis
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. Applied Sciences 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

  • supercritical carbon dioxide (sCO2)
  • sCO2 power cycle
  • thermal energy storage
  • waste heat recovery
  • heat exchangers
  • turbomachinery

Published Papers (3 papers)

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Research

16 pages, 4645 KiB  
Article
Technoeconomic Analysis of Oxygen-Supported Combined Systems for Recovering Waste Heat in an Iron-Steel Facility
by Busra Besevli, Erhan Kayabasi, Abdulrazzak Akroot, Wadah Talal, Ali Alfaris, Younus Hamoudi Assaf, Mohammed Y. Nawaf, Mothana Bdaiwi and Jawad Khudhur
Appl. Sci. 2024, 14(6), 2563; https://doi.org/10.3390/app14062563 - 19 Mar 2024
Viewed by 522
Abstract
In this study, it is proposed to generate electrical energy by recovering the waste heat of an annealing furnace (AF) in an iron and steel plant using combined cycles such as steam Rankine cycle (SRC), organic Rankine cycle (ORC), Kalina cycle (KC) and [...] Read more.
In this study, it is proposed to generate electrical energy by recovering the waste heat of an annealing furnace (AF) in an iron and steel plant using combined cycles such as steam Rankine cycle (SRC), organic Rankine cycle (ORC), Kalina cycle (KC) and transcritical CO2 cycle (t-CO2). Instead of releasing the waste heat into the atmosphere, the waste heat recovery system (WHRS) discharges the waste heat into the plant’s low-temperature oxygen line for the first time, achieving a lower temperature and pressure in the condenser than conventional systems. The waste heat of the flue gas (FG) with a temperature of 1093.15 K from the reheat furnace was evaluated using four different cycles. To maximize power generation, the SRC input temperature of the proposed system was studied parametrically. The cycles were analyzed based on thermal efficiency and net output power. The difference in SRC inlet temperature is 221.6 K for maximum power output. The proposed system currently has a thermal efficiency and total power output of 0.19 and 596.6 kW, respectively. As an environmental impact, an emission reduction potential of 23.16 tons/day was achieved. In addition, the minimum power generation cost of the proposed system is $0.1972 per kWh. Full article
(This article belongs to the Special Issue Application of Supercritical Carbon Dioxide Power Cycles for Thermal Energy Storage)
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18 pages, 1566 KiB  
Article
A Novel Hybrid CSP-PV Power Plant Based on Brayton Supercritical CO2 Thermal Machines
by José Ignacio Linares, Arturo Martín-Colino, Eva Arenas, María José Montes, Alexis Cantizano and José Rubén Pérez-Domínguez
Appl. Sci. 2023, 13(17), 9532; https://doi.org/10.3390/app13179532 - 23 Aug 2023
Viewed by 1234
Abstract
A novel hybrid CSP-PV power plant is presented. Instead of the integration used in current hybrid power plants, where part of the PV production is charged into the thermal energy storage system through electrical resistors, the proposed system integrates both PV and thermal [...] Read more.
A novel hybrid CSP-PV power plant is presented. Instead of the integration used in current hybrid power plants, where part of the PV production is charged into the thermal energy storage system through electrical resistors, the proposed system integrates both PV and thermal solar fields using a high-temperature heat pump. Both the heat pump and the heat engine are based on Brayton supercritical CO2 thermodynamic cycles. Such integration allows for charging the molten salt storage as if a central tower receiver field supplied the thermal energy, whereas parabolic trough collectors are employed. Unlike conventional hybrid plants, where the storage of PV production leads to a decrease in power injected into the grid throughout the day, the power injected by the proposed system remains constant. The heat engine efficiency is 44.4%, and the COP is 2.32. The LCOE for a 50 MWe plant with up to 12 h of storage capacity is USD 171/MWh, which is lower than that of existing CSP power plants with comparable performance. Although the cost is higher compared with a PV plant with batteries, this hybrid system offers two significant advantages: it eliminates the consumption of critical raw materials in batteries, and all the electricity produced comes from a synchronous machine. Full article
(This article belongs to the Special Issue Application of Supercritical Carbon Dioxide Power Cycles for Thermal Energy Storage)
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17 pages, 3215 KiB  
Article
Thermoeconomic Analysis of Concentrated Solar Power Plants Based on Supercritical Power Cycles
by María José Montes, Rafael Guedez, David D’Souza and José Ignacio Linares
Appl. Sci. 2023, 13(13), 7836; https://doi.org/10.3390/app13137836 - 03 Jul 2023
Viewed by 1245
Abstract
Solar thermal power plants are an alternative for the future energy context, allowing for a progressive decarbonisation of electricity production. One way to improve the performance of such plants is the use of supercritical CO2 power cycles. This article focuses on a [...] Read more.
Solar thermal power plants are an alternative for the future energy context, allowing for a progressive decarbonisation of electricity production. One way to improve the performance of such plants is the use of supercritical CO2 power cycles. This article focuses on a solar thermal plant with a central solar receiver coupled to a partial cooling cycle, and it conducts a comparative study from both a thermal and economic perspective with the aim of optimising the configuration of the receiver. The design of the solar receiver is based on a radial configuration, with absorber panels converging on the tower axis; the absorber panels are compact structures through which a pressurised gas circulates. The different configurations analysed keep a constant thermal power provided by the receiver while varying the number of panels and their dimensions. The results demonstrate the existence of an optimal configuration that maximises the exergy efficiency of the solar subsystem, taking into account both the receiver exergy efficiency and the heliostat field optical efficiency. The evolution of electricity generation cost follows a similar trend to that of the exergy efficiency, exhibiting minimum values when this efficiency is at its maximum. Full article
(This article belongs to the Special Issue Application of Supercritical Carbon Dioxide Power Cycles for Thermal Energy Storage)
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