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Integration of nuclear and hydrogen technologies to improve the efficiency of power generation and storage

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Category: Content №4 2025

Last Updated on 26 August 2025

Published on 30 November -0001

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Authors:

A. Rusanov, orcid.org/0000-0002-9957-8974, A. M. Pidhorny Institute of Power Machines and Systems of NASU, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

V. Solovey, orcid.org/0000-0002-5444-8922, A. M. Pidhorny Institute of Power Machines and Systems of NASU, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

M. Zipunnikov*, orcid.org/0000-0002-0579-2962, A. M. Pidhorny Institute of Power Machines and Systems of NASU, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

R. Rusanov, orcid.org/0000-0003-2930-2574, A. M. Pidhorny Institute of Power Machines and Systems of NASU, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2025, (4): 142 - 149

https://doi.org/10.33271/nvngu/2025-4/142

Abstract:

Purpose. Development of an energy-technological scheme and investigation of the thermodynamic efficiency of atomic-hydrogen electroaccumulation systems based on a small modular reactor with a hydrogen-oxygen energy storage and generation system.

Methodology. The study presents a methodology for designing and calculating an energy storage system with hydrogen steam superheating using electrolysis modules for hydrogen and oxygen generation.

Findings. A systematic analysis of the energy balance of a power installation based on a small modular reactor with hydrogen steam superheating has been conducted. The energy storage system with hydrogen steam superheating was calculated using an electrolysis module with a capacity of 12 m³/h and a specific energy consumption of 4 kW · h/m³ of hydrogen. An assessment of the gas storage system volume at a pressure of 150 atmospheres was performed, and a sectional design variant of the storage system was proposed, equipped with an expander-compressor unit for more complete gas extraction from the storage system. The use of a turbo-compressor operating within a pressure range of 0.5–3.5 MPa, driven by an expander turbine operating within a pressure range of 15.0–3.5 MPa and mounted on the same shaft as the compressor, ensures more complete gas utilization and reduces the volume of the storage system.

Originality. A methodology for the creation and thermodynamic analysis of autonomous atomic-hydrogen energy-technological complexes based on a small modular reactor and a high-pressure electrolyzer for energy accumulation and peak power generation has been proposed. This approach enables an increase in efficiency from 28 to 34.8 % during peak load periods.

Practical value. The use of hydrogen and oxygen for steam superheating before the turbine in a power plant with a 45 MW SMR ensures an energy return coefficient of 0.55 with a daily energy accumulation of 190 MWh.

Keywords: hydrogen-oxygen superheating, small modular reactor, gas storage system

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