Nuclear power

Sienicki, James J.; Moisseytsev, A.

doi:10.1016/b978-0-08-100804-1.00013-x

Cited by 2 publications

(3 citation statements)

References 37 publications

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“…Among these heat sources, the newgeneration nuclear reactor is regarded as a major source of sustainable energy, with a tremendous capacity, near-zero emissions, and multipurpose products [16]. Previous studies [17] revealed that the sCO 2 Brayton cycle can be combined with the helium-cooled fast reactor [18,19], the sodium-cooled fast reactor (SFR) [20], the lead-bismuth fast reactor, and the high-temperature gas reactor. The SFR, which is the fastest-growing reactor type, has several demonstration reactors in different countries.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, replacing the steam Rankine cycle with the sCO 2 Brayton cycle with high conventional loop pressure could increase the safety of the system. In general, combined with the SFR, the sCO 2 Brayton cycle is used as a conventional loop, which is well-adapted to the reactor [21] regarding the temperature gaps and ranges of heat exchange processes [17]. The AFR-100 can reach a higher efficiency of 42.3% and 104.9 MW net power with the sCO 2 Brayton cycle [21].…”

Section: Introductionmentioning

confidence: 99%

“…Aside from layouts, operation parameters, such as working fluid pressures, temperatures, and recuperated points, affect the system efficiency remarkably [27]. Moreover, applying the sCO 2 Brayton cycle is expected to reduce the capital cost per unit output electrical power of the nuclear power plant or the levelized cost of electricity [17]. Exergy analysis shows that the highest exergy loss takes place in the heliostat field, at nearly 42.5% of incident solar exergy, with a recompression Brayton cycle with partial-cooling and an improved heat recovery (RBC-PC-IHR) configuration [28].…”

Section: Introductionmentioning

confidence: 99%

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System Performance Analyses of Supercritical CO2 Brayton Cycle for Sodium-Cooled Fast Reactor

et al. 2022

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The system performance of the supercritical CO2 Brayton cycle for the Sodium Fast Reactor with a partial-cooling layout was studied, and an economic analysis was carried out. The energetic, exergetic, and exergoeconomic analyses are presented, and the optimized results were compared with the recompression cycle. The sensitivity analyses were conducted by considering the variations in the pressure ratios and inlet temperatures of the main compressor and the turbine. The exergy efficiency of the partial-cooling cycle reached 63.65% with a net power output of 34.39 MW via optimization. The partial-cooling cycle obtained a minimum total cost rate of 2230.36 USD/h and exergy efficiency of 63.65% when the pressure ratio was equal to 3.50. The inlet temperature of the main compressor was equal to 35 °C, and the inlet temperature of the turbine was equal to 480 °C. The total cost of recuperators decreased with the increase in the pressure ratio and the inlet temperatures of the main compressor. In addition, the total cost of recuperator could be reduced by increasing the outlet temperature of the turbine. The change in cost from exergy loss and destruction with the pressure ratio was substantially larger than with the inlet temperature of the turbine or the main compressor. Manipulating the pressure ratio is an essential method to guarantee good economy of the system. Moreover, capital investment, operation, and maintenance costs normally accounted for large proportions of the total cost rate, being almost double the cost from the exergy loss and destruction occurring in each condition.

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Section: Introductionmentioning

confidence: 99%