Thermodynamic Analysis of Nuclear Power Plants with External Steam Superheating

Vladimir Kindra (), Mikhail Ostrovsky, Igor Maksimov, Roman Zuikin and Nikolay Rogalev
Additional contact information
Vladimir Kindra: Department of Innovative Technologies for High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
Mikhail Ostrovsky: Department of Innovative Technologies for High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
Igor Maksimov: Department of Innovative Technologies for High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
Roman Zuikin: Department of Innovative Technologies for High-Tech Industries, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia
Nikolay Rogalev: Department of Thermal Power Plants, National Research University “Moscow Power Engineering Institute”, 111250 Moscow, Russia

Energies, 2025, vol. 18, issue 9, 1-22

Abstract: Increasing the efficiency and capacity of nuclear power units is a promising direction for the development of power generation systems. Unlike thermal power plants, nuclear power plants operate at relatively low temperatures of the steam working fluid. Due to this, the thermodynamic efficiency of such schemes remains relatively low today. The temperature of steam and the efficiency of nuclear power units can be increased by integrating external superheating of the working fluid into the schemes of steam turbine plants. This paper presents the results of a thermodynamic analysis of thermal schemes of NPPs integrated with hydrocarbon-fueled plants. Schemes with a remote combustion chamber, a boiler unit and a gas turbine plant are considered. It has been established that superheating fresh steam after the steam generator is an effective superheating solution due to the utilization of heat from the exhaust gases of the GTU using an afterburner. Furthermore, there is a partial replacement of high- and low-pressure heaters in the regeneration system, with gas heaters for condensate and steam superheating after the steam generator for water-cooled and liquid-metal reactor types. An increase in the net efficiency of the hybrid NPP is observed by 8.49 and 5.11%, respectively, while the net electric power increases by 93.3 and 76.7%.

Keywords: nuclear power plant; combined cycle; energy efficiency; external steam superheater (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/9/2317/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/9/2317/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:9:p:2317-:d:1647339

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().