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High-Temperature Power Units for Electricity and Heat Production: Current Status, Applications and Trends

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A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F1: Electrical Power System".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 4511

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Special Issue Editors

Dr. Vladimir Kindra

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Guest Editor

Department of Innovative Technologies of High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
Interests: power generation technologies; oxy-fuel combustion power cycles; gas turbine cooling; heat transfer enhancement; hydrogen energy
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Dr. Rogalev Andrey

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Guest Editor

Department of Innovative Technologies of High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
Interests: power generation technologies; carbon capture and storage; structural and parametric optimization; energy efficiency; emission reduction
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Dr. Komarov Ivan

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Guest Editor

Department of Innovative Technologies of High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
Interests: oxy-fuel combustion power cycles; combined cycle power plants; gas turbine units; ultrasupercritical steam power plants
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The Guest Editor is inviting submissions to Special Issue of Energies on the high-temperature power units for electricity production to this Special Issue. The world's energy consumption is rising over the past 50 years due to population growth and the increasing industrialization of countries in the third tier. The emerging trend has predetermined several serious environmental consequences, among which is global warming. Environmental and energy safety can be improved by the implementation of effective high-temperature power units with low carbon dioxide emissions, including combined cycle power plants with carbon capture and storage working on natural gas, hydrogen, and synthetic gas, oxy-fuel combustion power cycles, and ultra-supercritical steam turbine power units. However, on the way to their creation, it is necessary to define optimal parameters and structure for thermal schemes and provide reasonable scientific solutions for power generation equipment. This Special Issue will deal with thermodynamic optimization and equipment development for high-temperature power units for electricity and heat production. Topics of interest for publication include, but are not limited to:

Thermodynamic optimization of high-temperature power plants;
Development of oxy-fuel combustion power cycles;
Investigation of power plants with carbon capture and storage;
Low-potential heat utilization for power plants;
Power plants burning hydrogen and methane-hydrogen mixtures;
Power plants with coal gasification and methane reforming;
Cogeneration technologies;
Energy equipment development.

Dr. Vladimir Kindra
Dr. Rogalev Andrey
Dr. Komarov Ivan
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

oxy-fuel combustion
combined cycle
gas turbine
ultrasupercritical steam
carbon dioxide
carbon capture and storage
structural and parametric optimization
energy efficiency
emission reduction

Published Papers (3 papers)

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Research

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21 pages, 5226 KiB

Open AccessArticle

Research and Development of the Oxy-Fuel Combustion Power Cycle for the Combined Production of Electricity and Hydrogen

by Vladimir Kindra, Andrey Rogalev, Maksim Oparin, Dmitriy Kovalev and Mikhail Ostrovsky

Energies 2023, 16(16), 5983; https://doi.org/10.3390/en16165983 - 15 Aug 2023

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Abstract

Modern trends in improving environmental safety have determined the urgency in creating innovative technologies that allow the production of electricity and hydrogen without the emission of harmful substances. However, at the moment, there are not so many technical solutions offering the combined production of these useful products with a high degree of efficiency and environmental friendliness. The transition to oxy-fuel combustion power cycles for the co-production of electricity and hydrogen is a prospective way to decrease carbon dioxide emissions into the atmosphere from the energy sector. To achieve zero emissions, the semi-closed oxy-fuel combustion cycle is combined with a steam methane reformer, which has a high energy efficiency through reducing losses in the steam turbine condenser. The modeling methodology has been described in detail, including the approaches to defining the working fluid properties and mathematical models of the different steam methane reforming plants and the oxy-fuel combustion power plant. According to the results of the thermodynamic analysis of the steam methane reforming plant, it was found that an increase in the temperature from 850 to 1000 °C leads to a decrease in the mass flow fuel by 16.3% due to the shift towards a direct reaction. Moreover, the optimal temperature in the reformer lies in the range of 900–950 °C. A comparison of the energetic and ecological characteristics of various steam methane reformer units showed that the scheme with oxy-fuel combustion is better compared to the scheme with CO₂ capture by absorption in monoethanolamine; the efficiency is 6.9% higher and emissions of carbon dioxide are 22 times lower. According to the results of the thermodynamic analysis of a novel oxy-fuel combustion power cycle, it was found that its performance varied regarding the range of electricity production (123.6–370 MW) and hydrogen production (0–10.8 kg/s). The efficiency of the oxy-fuel combustion power cycle varies in the range of 47.2–70.1%. Based on the results of the operation regimes analysis, the energy complex performance map has been developed, allowing identification of the efficiency and working fluid massflow by net power and produced hydrogen massflow. Full article

(This article belongs to the Special Issue High-Temperature Power Units for Electricity and Heat Production: Current Status, Applications and Trends)

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25 pages, 4869 KiB

Open AccessArticle

Feasibility Study of Scheme and Regenerator Parameters for Trinary Power Cycles

by Vladimir Kindra, Igor Maksimov, Ivan Komarov, Cheng Xu and Tuantuan Xin

Energies 2023, 16(9), 3886; https://doi.org/10.3390/en16093886 - 4 May 2023

Cited by 1 | Viewed by 1055

Abstract

Natural gas-fired combined cycle plants are nowadays one of the most efficient and environmentally friendly energy complexes. High energy efficiency and low specific emissions are achieved primarily due to the high average integral temperature of heat supply in the Brayton–Rankine cycle. In this case, the main sources of energy losses are heat losses in the condenser of the steam turbine plant and heat losses with the exhaust gases of the waste heat boiler. This work is related to the analysis of the thermodynamic and economic effects in the transition from binary to trinary cycles, in which, in addition to the gas and steam–water cycles, there is an additional cycle with a low-boiling coolant. A method for the feasibility study of a waste heat recovery unit for trinary plants is proposed. The schematic and design solutions described will ensure the increased energy and economic performance of combined cycle power plants. Based on the results of the thermodynamic optimization of the structure and parameters of thermal schemes, it was found that the use of the organic Rankine cycle with R236ea freon for the utilization of the low-grade heat of a trinary plant’s exhaust gases operating from a GTE-160 gas turbine makes it possible to achieve a net electrical efficiency of 51.3%, which is a 0.4% higher efficiency for a double-circuit combined cycle gas turbine plant and a 2.1% higher efficiency for a single-circuit cycle with similar initial parameters. On the basis of the conducted feasibility study, the parameters and characteristics of the heat exchangers of the regenerative system of the waste heat recovery unit are substantiated. The use of plain fin-and-tube heat exchangers in the regenerative system of the utilization cycle is the most promising solution. It was found that the level of allowable pressure loss in the regenerator of 10 kPa and the degree of regeneration of 80% allow for maximum economic efficiency of the waste heat recovery unit. Full article

(This article belongs to the Special Issue High-Temperature Power Units for Electricity and Heat Production: Current Status, Applications and Trends)

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Review

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17 pages, 6897 KiB

Open AccessReview

Comparative Analysis of Energy Storage Methods for Energy Systems and Complexes

by Nikolay Rogalev, Andrey Rogalev, Vladimir Kindra, Vladimir Naumov and Igor Maksimov

Energies 2022, 15(24), 9541; https://doi.org/10.3390/en15249541 - 15 Dec 2022

Cited by 5 | Viewed by 1733

Abstract

The daily non-uniform power demand is a serious problem in power industry. In addition, recent decades show a trend for the transition to renewable power sources, but their power output depends upon weather and daily conditions. These factors determine the urgency of energy accumulation technology research and development. The presence of a wide variety of energy storage mechanisms leads to the need for their classification and comparison as well as a consideration of possible options for their application in modern power units. This paper presents a comparative analysis of energy storage methods for energy systems and complexes. Recommendations are made on the choice of storage technologies for the modern energy industry. The change in the cost of supplied energy at power plants by integrating various energy storage systems is estimated and the technologies for their implementation are considered. It is revealed that in the large-scale power production industry, the most productive accumulation methods for energy systems and complexes are the following: pumped hydroelectric energy storage systems, thermal and thermochemical accumulations, and hydrogen systems. These methods have the best technical and economic characteristics. The resulting recommendations allow for the assessment of the economic and energy effect achieved by integration of storage systems at the stage of designing new power units. Full article

(This article belongs to the Special Issue High-Temperature Power Units for Electricity and Heat Production: Current Status, Applications and Trends)

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