Evaluation of thermal-hydraulic performance and economics of Printed Circuit Heat Exchanger (PCHE) for recuperators of Sodium-cooled Fast Reactors (SFRs) using CO2 and N2 as working fluids

Lee, Su-Won; Shin, Seong Min; Chung, Sungkun; Jo, HangJin

doi:10.1016/j.net.2021.11.023

Cited by 22 publications

(10 citation statements)

References 20 publications

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“…Findings: (1) The experimental test results show that the PCHE with a novel structure is stable and feasible (2) The numerical results show that the comprehensive performance of the PCHE with an optimised structure was improved by 11.92% (3) An optimal PCHE structure (rectangular channels + hollow channels) obtained via simulation performed better compared with the PCHE prototype (expanded channels + traditional channels) by reducing the power loss caused by the pressure drop and weight by approximately 40.43% and 16.98%, respectively. Lee et al [8] (Numerical study)…”

Section: Intmentioning

confidence: 99%

“…on the overall performance of PCHE. Kern and Log Mean Temperature Difference (LMTD) methods which are normally used in heat exchanger design could be used to develop PCHE code for evaluation of thermal-hydraulic performance and economics of PCHEs (Lee et al [8,30]). Log Mean Temperature Difference (LMTD) and ε-NTU methods are the two (2) conventional methods used in modelling of heat exchangers to predict system performance in the view of heat transfer but modifications to these methods are required to predict thermal performance if PCHEs are to be used for pre-coolers and recuperators near critical conditions and at supercritical conditions (Kwon et al [19]).…”

Section: Design and Performance Optimization Of Heat Exchangersmentioning

confidence: 99%

“…The total cost estimation of the design and operation of the PCHE is the sum of the capital cost and operating cost. The capital cost is determined based on the volume and material for the design, excluding the fabrication and interfacing costs, which depend on the manufacturer and seller of the PCHE (Lee et al [8], Thulukkanam [31]).…”

Section: Design and Performance Optimization Of Heat Exchangersmentioning

confidence: 99%

“…Zigzag channel (Lee et al[8],Kim et al [34,35], Lu et al[36], Bannett and Chen[18])𝑁𝑢 = 2.2631 * 10 6 (𝑅𝑒) 1.0515 * 10 −3 𝑚 6.5405 * 10 −1 𝛼 −2.0665 * 10 −4 ( 𝐿 𝐷 ) 8.0885 * 10 −5 𝑁𝑢 = 2.2967 * 10 6 𝑚 6.5429 * 10 −1 𝑇 −1.3319 * 10 −3 , 𝑓 = 1.288 * 10 −1 − 3.231 * 10 −3 𝑅𝑒 3.58 * 10 −1 + 8.929 * 10 −2 (𝜋 − 𝛼)…”

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confidence: 99%

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Printed Circuit Heat Exchangers (PCHEs): A Brief Review

Shitsi

Debrah

Agbodemegbe

et al. 2023

Int. Res. J. multidiscip. Technovation

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Heat exchangers and other heat transfer devices/systems play vital roles of heat transfer in thermal fluid flow systems for industrial application. Sodium cooled fast reactors are normally designed to have two loops of sodium coolants and one loop of water coolant which generates steam for power production. The two loops of sodium coolants consist of primary cooling system of sodium which cools the fuel rods of the reactor core and secondary cooling system of sodium transferring heat from the sodium primary cooling system. The water-cooling system transfers heat from the secondary cooling system of sodium for steam generation. Lead cooled fast reactors on the other hand are designed to have primary cooling system of lead cooling the fuel rods in the reactor core and secondary cooling system of water transferring heat from the lead cooling primary system for steam generation. Water cooled Nuclear Power Plants used water to cool the reactor core in the primary system and the heat removed from the core is used for steam generation directly as in BWRs and SCWRs or in the secondary system of heat exchanger as in PWRs. Other reactor systems such as Gas-cooled fast reactor (GFR), Molten-salt reactor (MSR), High-temperature gas-cooled reactor (HTGR), and Small Modular Reactors (SMRs) also have various types of heat exchangers in their designs to support power/electricity generation. Appropriate heat exchangers are therefore needed for various stages of heat transfer in power generation systems. Thus, Heat exchangers and other heat transfer devices/systems play vital roles of heat transfer in thermal fluid flow systems for industrial applications. This study presents brief review of PCHEs which have comparable advantages over other types of heat exchangers. Recent studies on PCHEs and other heat exchanger types have been reviewed. Design and optimization of PCHEs, optimization of Brayton and Rankine circles, and fluid flow and heat transfer devices/systems have been discussed briefly. The review findings show that the design and optimization of PCHEs depends on the intended industrial application of the heat exchanger. The various channel types and channel cross-section types available for design and optimisation as well as the design and optimised system being able to withstand high pressure and temperature conditions in addition to its compact size for the intended industrial application make PCHEs unique among other types of heat exchangers.

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Section: Intmentioning

confidence: 99%

Section: Design and Performance Optimization Of Heat Exchangersmentioning

confidence: 99%

Section: Design and Performance Optimization Of Heat Exchangersmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Printed Circuit Heat Exchangers (PCHEs): A Brief Review

Shitsi

Debrah

Agbodemegbe

et al. 2023

Int. Res. J. multidiscip. Technovation

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show abstract

“…Although the discontinuous flow channels have a better thermal-hydraulic performance compared to the continuous flow channels, the complex structures of the discontinuous flow channels may result in a high cost in the chemical etching process and poor pressure resistance of PCHEs (Lee et al, 2021). For designing the flow channels of PCHEs applied in FLNG, the operation conditions should be taken into account besides the thermal-hydraulic performance.…”

Section: Structure Design Criteria Of Printed Circuit Heat Exchangers...mentioning

confidence: 99%

Technical Characteristics and Development Trend of Printed Circuit Heat Exchanger Applied in Floating Liquefied Natural Gas

Xie

Zhuang

et al. 2022

Front. Energy Res.

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The printed circuit heat exchanger with high efficiency and good compactness and reliability presents potential application in the floating liquefied natural gas platform. This paper offers a review on technical characteristics and development trend of the printed circuit heat exchanger applied in floating liquefied natural gas, including the development state of printed circuit heat exchangers, the application state of printed circuit heat exchangers in floating liquefied natural gas, and the key issues for potential application of printed circuit heat exchangers in floating liquefied natural gas. Firstly, the existing research results of heat transfer and pressure drop characteristics of printed circuit heat exchangers with various flow channels are analyzed, and the correlations of the heat transfer coefficients and the pressure drop of these flow channels are summarized. Then, the application state of printed circuit heat exchangers in floating liquefied natural gas is introduced, and the functions of printed circuit heat exchangers used in the existing floating liquefied natural gas facilities are analyzed. Finally, the key issues for applying printed circuit heat exchangers in floating liquefied natural gas, including the structure design criteria, influence mechanism of sloshing conditions on performance, and methods of suppressing the adverse effects of sloshing conditions, are proposed. It is indicated that the present studies focus on the effect of single sloshing motion on the thermal–hydraulic performances of printed circuit heat exchangers, but few attention has been paid onto the coupling effects of multiple sloshing motions which conform more closely to the actual operation conditions of printed circuit heat exchangers in floating liquefied natural gas. Thus, the future work should aim at the influence mechanisms and structure optimizations in terms of thermal–hydraulic performance under multiple sloshing conditions.

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