Chapter 6. The Effects of Thermal Shock on the Mechanical Properties of a Hot Gas Candle Filter

  1. Todd Jessen and
  2. Ersan Ustundag
  1. R. H. Carter,
  2. X. Huang and
  3. K. L. Reifsnider

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294628.ch6

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

How to Cite

Carter, R. H., Huang, X. and Reifsnider, K. L. (2000) The Effects of Thermal Shock on the Mechanical Properties of a Hot Gas Candle Filter, in 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3 (eds T. Jessen and E. Ustundag), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294628.ch6

Author Information

  1. Materials Response Group 120 Patton Hall Virginia Polytechnic Institute and State University Blacksburg, VA 24061

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2000

ISBN Information

Print ISBN: 9780470375686

Online ISBN: 9780470294628

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Keywords:

  • power generation systems;
  • coal combustion;
  • high-temperature air;
  • ceramic materials;
  • HIPPS system

Summary

Hot gas candle filters must be able to withstand prolonged exposure to high temperatures and severe thermal shock. To understand the effects of these conditions, the McDermott Technologies' design has been exposed to simulated service conditions of 800°C and back pulse cleaning cycles. The effects of the thermal shock cycling have been studied by measuring the mechanical properties of samples after varying amounts of back pulse cycling. Tensile stiffness showed little change after 100 thousand back pulse cycles. The torsional stiffness of the material dropped approximately 40% after 1 thousand cycles, but did not change further throughout the remaining cycles. Internal burst pressures were not affected, although the tensile strength decreased about 20% over the 100 thousand cycle range.