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Dynamic Flow of Micro-Channels in a Ceramic Heat Exchanger

[+] Author Affiliations
James Cutts, Merrill Wilson

Ceramatec, Inc.

Valery Ponyavin

University of Nevada at Las Vegas

Paper No. IMECE2006-15950, pp. 647; 1 page
  • ASME 2006 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Volume 3
  • Chicago, Illinois, USA, November 5 – 10, 2006
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4786-1 | eISBN: 0-7918-3790-4


This poster presents a comparison of flow between four possible designs for ceramic high temperature heat exchanger that is used as a sulfuric acid decomposer which may be used for hydrogen production within the sulfur iodine thermo-chemical cycle. The decomposer is manufactured using fused ceramic layers that allow creation of tailored micro-channels with dimensions below one millimeter. The baseline design uses parallel straight channels with rectangular cross sections. This design will be compared with other proposed designs where varying cross sections and serpentine flow paths can improve the heat transfer with minimal effects on the pressure drop. Measurements have been taken using a dynamic pressure mat that has been calibrated to allow for precise measurements of the flow data. Results of this research are used as a basis for investigation optimal design of the decomposer that can provide maximum thermal performance while maintaining low pressure drops and thermo-mechanical stresses within system.



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