Impact of different types of channels on Thermo-hydraulic performance of a sodium-sCO2 Printed circuit heat exchanger for supercritical Brayton cycle applications

Riahi, Soheila; Belusko, Martin; Lau, Timothy C. W.; Flewell-Smith, Ross; Evans, Michael J.; Bruno, Frank

doi:10.1016/j.applthermaleng.2022.119098

Cited by 11 publications

(1 citation statement)

References 25 publications

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“…Lu et al optimised a microchannel heat exchanger in a SCO 2 Brayton cycle system for lead-based reactors owing to its low flow resistance and high heat transfer efficiency, rendering it suitable for power conversion systems in lead-based reactors [84]. Riahi et al simulated 18 distinct channel types and systematically evaluated their heat transfer capabilities using straight channels on the sodium side and various media on the SCO 2 side [85]. Su et al compared contemporary models and numerical methodologies with the experimental data of lead-bismuth eutectic (LBE) cooling tubes and simulation data of conjugate heat transfer in straight PCHE channels between LBE and SCO 2 .…”

Section: Airfoil Channelmentioning

confidence: 99%

Research Advances in the Application of the Supercritical CO2 Brayton Cycle to Reactor Systems: A Review

Xiao,

Zhou,

Yuan

et al. 2023

Energies

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Amid the global emphasis on efficient power conversion systems under the “dual carbon” policy framework, the supercritical CO2 (SCO2) Brayton cycle is a noteworthy subject, owing to its pronounced efficiency, compact design, economic viability, and remarkable potential to increase the thermal cycle efficiency of nuclear reactors. However, its application across various nuclear reactor loops presents divergent challenges, complicating system design and analytical processes. This paper offers a thorough insight into the latest research on the SCO2 Brayton cycle, particularly emphasising its integration within directly and indirectly cooled nuclear reactors. The evolution of the Brayton cycle in nuclear reactor systems has been meticulously explored, focusing on its structural dynamics, key components, and inherent pros and cons associated with distinct reactor loops. Based on the theoretical frameworks and empirical findings related to turbomachinery and heat exchangers within the cycle, we chart a course for future enquiries into its critical components, underscoring the indispensable role of experimental investigations. This paper conclusively assesses the feasibility of deploying the SCO2 Brayton cycle in direct and indirect cooling contexts, offering a forward-looking perspective on its developmental trajectory. The SCO2 Brayton cycle may become a focal point for research, potentially creating avenues for nuclear energy endeavours.

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Section: Airfoil Channelmentioning

confidence: 99%