수소 스테이션 전용 PCHE형 고성능 열교환기의열 해석 연구
Study on Thermal Analysis of PCHE-type Heat Exchanger with High Performance for Hydrogen Station
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초록
The PCHE(Printed Circuit Heat Exchanger)-type heat exchanger, which was fabricated by etching and diffusion bonding, was used to hydrogen station, VHTR(Very High Temperature Reactor), SMR and so on. The hydrogen station equipped with PCHE-type heat exchanger is necessary to inject the hydrogen gas into facilities, for instance, such as HFCV(Hydrogen Fuel Cell Vehicle) and power systems. The purpose of this study is to investigate the thermal characteristics of thin plate of PCHE depending on constraint conditions through numerical analysis. As the results, it showed that thermal stress of thin plate, which was not performed diffusion bonding at all, was larger than that, which was performed perfect diffusion bonding, and its maximum difference was about 3 times. Further it was confirmed that the thermal characteristics of thin plate could be obtained by investigating the heat flux.
Abstract
The PCHE(Printed Circuit Heat Exchanger)-type heat exchanger, which was fabricated by etching and diffusion bonding, was used to hydrogen station, VHTR(Very High Temperature Reactor), SMR and so on. The hydrogen station equipped with PCHE-type heat exchanger is necessary to inject the hydrogen gas into facilities, for instance, such as HFCV(Hydrogen Fuel Cell Vehicle) and power systems. The purpose of this study is to investigate the thermal characteristics of thin plate of PCHE depending on constraint conditions through numerical analysis. As the results, it showed that thermal stress of thin plate, which was not performed diffusion bonding at all, was larger than that, which was performed perfect diffusion bonding, and its maximum difference was about 3 times. Further it was confirmed that the thermal characteristics of thin plate could be obtained by investigating the heat flux.
참고문헌 (8)
- J. K. Kim, "Development of Printed Circuit Heat Exchanger for Hydrogen Station using Diffusion Bonding", Journal of Welding and Joining, 35(5), pp.57~64 (2017)
- W. S. Ryoo, "Numerical Analysis of Phase-Chagne in PCHE(Printed Circuit Heat Exchanger)for LNG Carrier", The KSFM Journal of Fluid Machinery, 26(1), pp.23~28 (2023)
- S. W. Jeon, "Numerical Study on Heat Transfer Performance of PCHE with Supercritical CO2 as Working Fluid", Transaction of KSME B, 40(11), pp.737~744 (2016)
- B. G. Park, "A Numerical Study on Improving the Thermal Hydraulic Performance of Printed Circuit Heat Exchanger using the Supercritical Carbon Dioxide", Transaction of KSME B, 39(10), pp.779~786 (2015)
- K. N. Song, "Evaluation of High-Temperature Structural Integrity using Lab-Scale PCHE Prototype", Transaction of KSME A, 37(9), pp.1189~1194 (2013)
- Y. H. Kim, "Heat Transfer Characteristics and Pressure Drop in Straight Microchannel of the Printed Circuit Heat Exchangers", Transaction of KSME B, 32(12), pp.915~923 (2008)
- J. H. Kim, "A Study on the Pressure Loss Characteristics of Micro-Channel PCHE", The Society of Air-conditioning and Refrigerating Engineers of Korea, 22(11), pp.751~759 (2010)
- K. N. Song, "Macroscopic High-Temperature Structural Analysis Model of Small-Scale PCHE Prototype(II)", Transaction of KSME A, 35(9), pp.1137~1143 (2011)