On the adoption of carbon dioxide thermodynamic cycles for nuclear power conversion: A case study applied to Mochovce 3 Nuclear Power Plant

Santini, Lorenzo; Accornero, Carlo; Cioncolini, Andrea

doi:10.1016/j.apenergy.2016.08.046

Cited by 67 publications

(16 citation statements)

References 30 publications

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“…A mathematical model for the key components of high temperature nuclear reactor coupled with the advanced GT combined cycle is presented in tabs. 3 and 4 [23].…”

Section: Mathematical Modellingmentioning

confidence: 99%

Thermodynamic analysis of high temperature nuclear reactor coupled with advanced gas turbine combined cycle

2019

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One of the most advanced and most effective technology for electricity generation nowadays based on a gas turbine combined cycle. This technology uses natural gas, synthesis gas from the coal gasification or crude oil processing products as the energy carriers but at the same time, gas turbine combined cycle emits SO 2 , NO x , and CO 2 to the environment. In this paper, a thermodynamic analysis of environmentally friendly, high temperature gas nuclear reactor system coupled with gas turbine combined cycle technology has been investigated. The analysed system is one of the most advanced concepts and allows us to produce electricity with the higher thermal efficiency than could be offered by any currently existing nuclear power plant technology. The results show that it is possible to achieve thermal efficiency higher than 50% what is not only more than could be produced by any modern nuclear plant but it is also more than could be offered by traditional (coal or lignite) power plant.

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“…A mathematical model for the key components of high temperature nuclear reactor coupled with the advanced GT combined cycle is presented in tabs. 3 and 4 [23].…”

Section: Mathematical Modellingmentioning

confidence: 99%

Thermodynamic analysis of high temperature nuclear reactor coupled with advanced gas turbine combined cycle

2019

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“…Angelino concluded that s-CO2 power cycle has the potential to perform better than reheat steam cycle on account of efficiency, simplicity and compactness [12]. Dekhtiarev [24] studied condensing reheated s-CO2 cycles as a good alternative to steam cycle for fossil fuel plant [25]. According to recent comprehensive reviews by Olumayegun et al [26], Ahn et al [19], Crespi et al [27] and Li et al [28], s-CO2 power cycles are currently being widely investigated as power conversion system for application in nuclear, fossil, concentrated solar power, biomass, and waste heat recovery systems because of its advantages [8,11,15,17,20,[29][30][31].…”

Section: Introductionmentioning

confidence: 99%

“…The use of mixture of CO2 with additive gases to improve the performance of s-CO2 cycle of a nuclear reactor was investigated by Hu et al [17]. Even though s-CO2 cycle is usually viewed to provide superior thermodynamic performance than steam cycle only in the medium to high-temperature range (greater than 0 C), Santini et al [25] investigated the adoption of s-CO2 cycle for a far lower temperature (about 0 C) of an existing PWR. The results indicated that a reheated recompression s-CO2 cycle achieved a net cycle efficiency of about 34% compared to 33.5% of the existing steam cycle and the plant footprint was 10 times smaller than the steam cycle plant.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic performance evaluation of supercritical CO2 closed Brayton cycles for coal-fired power generation with solvent-based CO2 capture

Olumayegun

Wang

Oko

2019

Energy

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Power generation from coal-fired power plants represents a major source of CO2 emission into the atmosphere. Efficiency improvement and integration of carbon capture and storage (CCS) facilities have been recommended for reducing the amount of CO2 emissions. The focus of this work was to evaluate the thermodynamic performance of s-CO2 Brayton cycles coupled to coal-fired furnace and integrated with 90% post-combustion CO2 capture. The modification of the s-CO2 power plant for effective utilisation of the sensible heat in the flue gas was examined. Three bottoming s-CO2 cycle layouts were investigated, which included a newly proposed single recuperator recompression cycle. The performances of the coal-fired s-CO2 power plant with and without carbon capture were compared. Results for a 290 bar and 593 0 C power cycle without CO2 capture showed that the configuration with single recuperator recompression cycle as bottoming cycle has the highest plant net efficiency of 42.96% (Higher Heating Value). Without CO2 capture, the efficiencies of the coal-fired s-CO2 cycle plants were about 3.34-3.86% higher than the steam plant and about 0.68-1.31% higher with CO2 capture. The findings so far underscored the promising potential of cascaded s-CO2 power cycles for coal-fired power plant application.

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“…Carbon dioxide as a working fluid is non-toxic, stable, and non-combustible [2]. A power block utilizing S-CO 2 has many benefits due to its compactness, low maintenance and running costs, and structural simplicity [6,7]. Another advantage which makes the utilization of CO 2 worthy in supercritical BC is the rapid change in its thermo-physical properties near its critical point.…”

Section: Introductionmentioning

confidence: 99%

Energy Analysis of the S-CO2 Brayton Cycle with Improved Heat Regeneration

Siddiqui

Almitani

2018

Processes

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Supercritical carbon dioxide (S-CO 2 ) Brayton cycles (BC) are promising alternatives for power generation. Many variants of S-CO 2 BC have already been studied to make this technology economically more viable and efficient. In comparison to other BC and Rankine cycles, S-CO 2 BC is less complex and more compact, which may reduce the overall plant size, maintenance, and the cost of operation and installation. In this paper, we consider one of the configurations of S-CO 2 BC called the recompression Brayton cycle with partial cooling (RBC-PC) to which some modifications are suggested with an aim to improve the overall cycle's thermal efficiency. The type of heat source is not considered in this study; thus, any heat source may be considered that is capable of supplying temperature to the S-CO 2 in the range from 500 • C to 850 • C, like solar heaters, or nuclear and gas turbine waste heat. The commercial software Aspen HYSYS V9 (Aspen Technology, Inc., Bedford, MA, USA) is used for simulations. RBC-PC serves as a base cycle in this study; thus, the simulation results for RBC-PC are compared with the already published data in the literature. Energy analysis is done for both layouts and an efficiency comparison is made for a range of turbine operating temperatures (from 500 • C to 850 • C). The heat exchanger effectiveness and its influence on both layouts are also discussed.

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On the adoption of carbon dioxide thermodynamic cycles for nuclear power conversion: A case study applied to Mochovce 3 Nuclear Power Plant

Cited by 67 publications

References 30 publications

Thermodynamic analysis of high temperature nuclear reactor coupled with advanced gas turbine combined cycle

Thermodynamic analysis of high temperature nuclear reactor coupled with advanced gas turbine combined cycle

Thermodynamic performance evaluation of supercritical CO2 closed Brayton cycles for coal-fired power generation with solvent-based CO2 capture

Energy Analysis of the S-CO2 Brayton Cycle with Improved Heat Regeneration

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