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Thermal performance of heterogeneous PCHE for supercritical CO2 energy cycle
International Journal of Heat and Mass Transfer, 2016Abstract The supercritical CO2 (S-CO2) energy cycles are gaining increasing attention due to its high efficiency in a compact footprint and ability to utilizing various heat sources. The printed circuit heat exchanger (PCHE) is regarded an essential component in the S-CO2 cycle due to its high compactness and structural rigidity.
Jeon, Sangwoo +3 more
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Thermal and hydraulic performance of SCO2 PCHE with different fin configurations
Applied Thermal Engineering, 2017Abstract The numerical study of thermal and hydraulic performance of a supercritical CO2 ( SCO 2 ) printed circuit heat exchanger (PCHE) has been conducted and validated using published experimental data. A domain optimization study has been carried out to finalize a PCHE domain with significantly reduced computational time without ...
Muhammad Saeed, Man-Hoe Kim
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Design of Printed Circuit Heat Exchanger (PCHE) for LNG Re-Gasification System
Volume 8: Heat Transfer and Thermal Engineering, 2017In this paper, we present the ongoing process of the research and development of the Printed Circuit Heat Exchanger (PCHE) on Floating Storage Regasification Unit (FSRU). We performed a structural simulation work to find the optimal design of fluid channels on heat transfer plates, fabricated the heat transfer plates, and calculated the capacity of the
Seok Ho Yoon +3 more
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High-Temperature Structural Analysis of a Lab-Scale Alloy 800HT PCHE
Key Engineering Materials, 2016The IHX (Intermediate Heat Exchanger) of a VHTR (Very High Temperature Reactor) transfers 950°C heat generated from the VHTR to a hydrogen production plant. The Korea Atomic Energy Research Institute has manufactured a lab-scale Alloy 800HT PCHE (Printed Circuit Heat Exchanger) prototype under consideration as a candidate of the IHX (Intermediate Heat ...
Kee Nam Song, Eung Seon Kim, S.Y. Jang
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Analysis of printed circuit heat exchanger (PCHE) potential in exhaust waste heat recovery
Applied Thermal Engineering, 2022Abstract Exhaust waste heat recovery technology based on power cycles requires high efficiency, low flow resistance, and a compact structure for exhaust gas heat exchangers. It is a huge challenge for traditional heat exchangers, such as double tube or shell and tube heat exchangers.
Hongfei Zhang +6 more
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Evaluation of High-Temperature Structural Integrity Using Lab-Scale PCHE Prototype
Transactions of the Korean Society of Mechanical Engineers A, 2013이 시스템에서는 Fig. 1에서와 같이 고온가스덕트(Hot Gas Duct), 중간열교환기(Intermediate Heat Exchanger; IHX) 및 공정열교환기(Process Heat Exchanger) 등으로 구성된 중간루프가 반드시 필요한데 특히 IHX 는 원자로에서 생산된 초고온 열을 수소 생산 공장으로 전달하는 핵심 기기로서 약 900℃ 정도의 초고온하에서 작동하고 있다. 인쇄기판형 열교환기(Printed Circuit Heat Exchanger; PCHE)는 유체가 통과하는 미세한 유로를 화학적 etching 방법으로 형성하고, 유로들이 형성된 유로판Key Words: Printed Circuit Heat ...
Kee Nam Song, Sung Deok Hong
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Thermal-hydraulic performance of a PCHE with sodium and sCO2 as working fluids
Annals of Nuclear Energy, 2021Abstract The Printed Circuit Heat Exchanger (PCHE) is one of the most attractive options for heat exchanger in compact facilities due to the high area concentration and superior heat transfer efficiency. A PCHE with sodium and supercritical carbon dioxide (sCO2) as working media is used as the intermediate heat exchangers in sodium-cooled fast ...
Tenglong Cong +4 more
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Comprehensive performance comparison of airfoil fin PCHEs with NACA 00XX series airfoil
Nuclear Engineering and Design, 2017Abstract Printed circuit heat exchanger (PCHE) can be used in supercritical carbon dioxide (S-CO 2 ) Brayton cycle. The present study compares NACA 0020 airfoil fin PCHE with conventional zigzag PCHE by numerical analysis. Pressure drop of the former has a striking reduction while maintaining excellent heat transfer performance.
Fei Chen +5 more
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Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, 2020
Abstract The supercritical carbon dioxide (sCO2) cycle has emerged as a promising power cycle for various types of power conversion systems, based on its high thermal efficiency, (approaching 60%), small-size and compactness. The recompression Brayton cycle with sCO2 is based on high capacity regenerators processing a large amount of ...
Anestis Kalfas +2 more
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Abstract The supercritical carbon dioxide (sCO2) cycle has emerged as a promising power cycle for various types of power conversion systems, based on its high thermal efficiency, (approaching 60%), small-size and compactness. The recompression Brayton cycle with sCO2 is based on high capacity regenerators processing a large amount of ...
Anestis Kalfas +2 more
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Heat transfer performance of wavy-channeled PCHEs and the effects of waviness factors
International Journal of Heat and Mass Transfer, 2017Abstract The printed circuit heat exchanger (PCHE) is a key component in the future compact energy cycles due to its high heat transfer performance and structural rigidity. In this study, the thermal performance of wavy-channeled PCHEs, and the effects of the waviness factors: the amplitude and the period, on the thermal performance of the PCHE are ...
Baik, Young-Jin +4 more
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