Transactions of the Korean Society of Pressure Vessels and Piping (한국압력기기공학회 논문집)

Korean Society of Pressure Vessels and Piping (한국압력기기공학회)
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Structural Design for Key Dimensions of Printed Circuit Heat Exchanger

인쇄기판형열교환기 핵심치수 구조설계

  • Received : 2018.04.15
  • Accepted : 2018.06.18
  • Published : 2018.06.30
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Abstract

The mechanical design procedure is studied for the PCHE(printed circuit heat exchanger) with electrochemical etched flow channels. The effective heat transfer plates of PCHE are assembled by diffusion bonding to make a module. PCHE is widely used for industrial applications due to its compactness, cost efficiency, and serviceability at high pressure and/or temperature conditions. The limitations and technical barriers of PCHE are investigated for application to nuclear components. Rules for design and fabrication of PCHE are specified in ASME Section VIII but not in ASME Section III of nuclear components. Therefore, the calculation procedure of key dimensions of PCHE is defined based on ASME section VIII. The effective heat transfer region of PCHE is defined by several key dimensions such as the flow channel radius, edge width, wall thickness, and ridge width. The mechanical design procedure of key dimensions was incorporated into a program for easy use in the PCHE design. The effect of assumptions used in the key dimension calculation on stress values is numerically investigated. A comparative analysis is done by comparing finite element analysis results for the semi-circular flow channels with the formula based sizing calculation assuming rectangular cross sections.

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References

  1. Southall, D., Le Pierres, R., and Dowson, S.J., 2008, "Design Considerations for Compact Heat Exchangers," Proceedings of ICAPP'08, Anaheim, USA.
  2. Le Pierres, R., Southall, D., and Osborne, S., 2011, "Impact of Mechanical Design Issues on Printed Circuit Heat Exchangers," Proceedings of SCO2 power cycles symposium.
  3. Sabharwall, P., Carlk, D.E., Mizia, R.E., Glazoff, M.V., and McKellar, M.G., 2013, "Diffusion -Welded Microchannel Heat Exchanger for Industrial Processes," Journal of Thermal Science and Engineering Applications, MARCH 2013, Vol. 5 / 011009-1-12.
  4. Futterer, M.A., Li, F., Sink, S., Groot, S., Pouchon, M., Kim, Y.W., Carre, F., Tachibana, Y., 2014, "Status of the Very High Temperature Reactor System," Progress in Nuclear Energy, Vol.77, pp. 1-16. https://doi.org/10.1016/j.pnucene.2014.06.002
  5. Dostal, V., Driscoll, M.J., Hejzlar, P., 2004, "A Supercritical Carbon Dioxide Cycle for Next Generation Nuclear Reactors," MIT-ANP-TR-100.
  6. Kim, Y.W., et al., 2015, "Development of Key Technologies for Nuclear Hydrogen," KAERI/RR-3936/2014.
  7. ASME, 2015, "Rules for Diffusion Bonded, Flat Plate, Microchannel Heat Exchanger," ASME B&PV Section VIII Code case 2437-1.
  8. ASME, 2015, "Diffusion Bonding Section VIII, Division1," ASME B&PV Section VIII Code case 2621-1.
  9. Nestell, J., Sham, T.L., 2015, "ASME Code Considerations for the Compact Heat Exchanger," ORNL/TM-2015/401.
  10. ASME, 2015, "Materials," ASME B&PV Section II Part D.
  11. Kim, Y.W., Kim, E.S., 2017, "Mechanical Design of Printed Circuit Heat Exchanger," KAERI/TR-6898/2017.
  12. Dassault Systemes Simula Corp, 2013, "ABAQUS 6.13 Analysis User's Manual".