Multi‐objective optimization of thermoeconomic and component size of supercritical carbon dioxide recompression cycle based on small‐scale lead‐cooled fast reactor

Du, Yang; Wang, Leilei; Yu, Zeting; Zhang, Hanzhi; Li, Yanzhao; Yang, Ce

doi:10.1002/er.8076

Cited by 18 publications

(6 citation statements)

References 47 publications

(99 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, according to the characteristics and solving methods of integrated energy system planning model, this paper puts forward an intelligent algorithm for multi-objective optimization to realize the solution of the model. Compared with the multiconstraint and single-objective optimization model, the multi-index constraint and multi-objective collaborative optimization model established in this paper obtains a non-inferior solution set consisting of multiple groups of solutions, that is, Pareto set [7][8]. The framework for solving multi-objective optimization problems is shown in Figure 1:…”

Section: Model Solving Processmentioning

confidence: 99%

Interval design of expressway comprehensive energy system based on multi-objective optimization

Wang,

Zhang,

et al. 2024

International Conference on Smart Transportation and City Engineering (STCE 2023)

View full text Add to dashboard Cite

In order to understand the interval design of expressway comprehensive energy system, a research on interval design of expressway comprehensive energy system based on multi-objective is put forward. From the perspective of joint planning and operation, taking the planning result as the direction and the operation result as the target calculation basis, this paper establishes the relationship between planning and operation from the perspectives of annualized cost of equipment investment in the planning process, investment time value, energy use cost and operation and maintenance cost in the operation process, and realizes the integrated planning and operation optimization model of comprehensive energy system. Secondly, the optimization process, optimization goal and solving algorithm of the model are put forward. Through examples, it is proved that the load interval of electric vehicle is basically consistent with the trend of electric load. If it is not adjusted, it is easy to cause the phenomenon of "peak plus peak" of electric load. Wind power has a large output at night, and it is easy to produce wind curtailment, so we can focus on how to absorb the excess wind power in these periods.Finally, according to the actual construction needs of users, the construction scheme of comprehensive energy system under fixed investment constraints is put forward, which provides theoretical basis for solving the planning problem of comprehensive energy system.

show abstract

Section: Model Solving Processmentioning

confidence: 99%

Interval design of expressway comprehensive energy system based on multi-objective optimization

Wang,

Zhang,

et al. 2024

International Conference on Smart Transportation and City Engineering (STCE 2023)

View full text Add to dashboard Cite

show abstract

“…When implementing the S-CO 2 cycle in confined spaces like nuclear-powered ships and spacecraft, its size becomes a crucial factor to consider (Du et al, 2022). Du et al conducted a multi-objective optimization of the thermo-economics and component size of a recompression S-CO 2 cycle centered around a small-scale lead-cooled fast reactor (Du et al, 2022). The findings showed that elevating the turbine inlet temperature enhanced thermo-economics, yet it also led to an increase in system volume.…”

Section: Nuclear Applicationsmentioning

confidence: 99%

Thermodynamic Modelling, Technical and Operational Issues of Supercritical Carbon Dioxide Power Generation Cycles for Industrial Applications: A Literature Review

Aredokou,

Chegnimonhan,

Tiam

et al. 2023

IRA-JAS

View full text Add to dashboard Cite

Future electricity production systems will be able to harness the power of supercritical carbon dioxide (S-CO2) as it moves through thermal cycles. It serves the same goal as sources of energy such as fossil fuels, nuclear power, solar power, and the recovery of waste heat (or surplus heat from industrial processes). When the heat source temperature is between 350°C and 800°C, CO2 as a working fluid exhibits excellent thermal efficiency. Its novel technological benefits over conventional steam Rankine cycles, such as the use of small turbo gear and compact heat exchangers, have captured the attention of scientists. It has excellent operational flexibility and may induce significantly cheaper energy costs. Aligned with these goals, this paper presents a panoramic work, exploring the current state of the art of S-CO2 power generation, with a particular emphasis on the technical and operational perplexities. After providing a comprehensive overview of the thermodynamic principles that underpin this study, the foundation is established for an engaging discourse on the continuous research and development of supercritical carbon dioxide (S-CO2) cycles in power generation. Upon delving into the thermodynamic facets of CO2 that propel this investigation, the spotlight is cast upon dissecting the existing state of research and development of S-CO2 cycles in power generation before transitioning into encapsulating the principal domains of application and noteworthy thermodynamic modelling inquiries of S-CO2 cycles. The present advancements and hurdles within the primary application areas are succinctly summarized, while future research trends are identified.

show abstract

“…The compactness of the small modular reactor (SMR) is critical to its application in size‐constrained situations, and the advantage derives from its modular design 5 . To determine the economic benefits of SMR, Lloyd et al 6 studied the transport, constructability, and economic advantages of SMR modularization.…”

Section: Introductionmentioning

confidence: 99%

“…(4) The operating states of compressors in the system with different control strategies are evaluated. (5) The performance of the hybrid-controlled system under off-design conditions is analyzed.…”

Section: Introductionmentioning

confidence: 99%

“…4 The compactness of the small modular reactor (SMR) is critical to its application in size-constrained situations, and the advantage derives from its modular design. 5 To determine the economic benefits of SMR, Lloyd et al 6 studied the transport, constructability, and economic advantages of SMR modularization. The results indicated that a fully modularized SMR was capable of transporting approximately 80% of its components and reducing 45% of its overnight construction cost relative to its conventionally built counterpart.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Off‐design performance of supercritical carbon dioxide cycle combined with organic Rankine cycle for maritime nuclear propulsion system under different control strategies

Yang

et al. 2022

Intl J of Energy Research

Self Cite

View full text Add to dashboard Cite

Summary A combined power conversion system, which consists of a supercritical carbon dioxide recompression cycle with an organic Rankine cycle as the bottoming cycle, has broad potential for maritime propulsion applications. However, the performance of the combined system under the off‐design condition and operating states of compressors with a wide range of load variations and different control strategies have not been comprehensively investigated. Therefore, a simulation model for the combined system under off‐design conditions is established in the present study to investigate the compressors operating states and the performance of the system under different control strategies. The result shows that a peak efficiency of 42.82% and total production unit cost of 11.6 $/GJ are achieved at the design point for the combined system, where the pressure ratio, flow split ratio, and evaporating pressure are 2.7, 0.27, and 770 kPa, respectively. When the relative load varies from 100% to 10%, the efficiency of the inventory‐controlled system decreases by 19.07%, and the efficiency of the bypass‐controlled system decreases by 34.3%. For the 10% load scenario, the compressors tend to surge under the inventory‐controlled strategy and approach the choke area under the bypass‐controlled strategy. The adoption of the inventory‐bypass hybrid control strategy keeps the compressors of the low‐load system away from the surge and choke areas, and the efficiency is between those of the systems controlled by the two separate strategies.

show abstract

Multi‐objective optimization of thermoeconomic and component size of supercritical carbon dioxide recompression cycle based on small‐scale lead‐cooled fast reactor

Cited by 18 publications

References 47 publications

Interval design of expressway comprehensive energy system based on multi-objective optimization

Interval design of expressway comprehensive energy system based on multi-objective optimization

Thermodynamic Modelling, Technical and Operational Issues of Supercritical Carbon Dioxide Power Generation Cycles for Industrial Applications: A Literature Review

Off‐design performance of supercritical carbon dioxide cycle combined with organic Rankine cycle for maritime nuclear propulsion system under different control strategies

Contact Info

Product

Resources

About