Chapter 6. Use of Aerodynamic Means to Improve Regenerator Efficiency and Control of Combustion Air Input at Ports

  1. William J. Smothers
  1. Y. W. Tsai

Published Online: 26 MAR 2008

DOI: 10.1002/9780470320198.ch6

Proceedings of the 44th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 5, Issue 1/2

Proceedings of the 44th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 5, Issue 1/2

How to Cite

Tsai, Y. W. (1984) Use of Aerodynamic Means to Improve Regenerator Efficiency and Control of Combustion Air Input at Ports, in Proceedings of the 44th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 5, Issue 1/2 (ed W. J. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320198.ch6

Author Information

  1. PPG Industries, Inc. Box 617, Creighton, PA 15030

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1984

ISBN Information

Print ISBN: 9780470374061

Online ISBN: 9780470320198

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Keywords:

  • glass furnace;
  • exhaust gases;
  • downtank packing;
  • penalizing regenerator efficiency;
  • port combustion

Summary

In a multiport glass furnace, regenerator exhaust gases tend to pass through the uptank checker packing. On the other hand, combustion air tends to flow through the downtank packing. This flow pattern creates a checker temperature distribution which is not uniform, thus penalizing regenerator efficiency. Placement and operation of high velocity air jets at strategic locations in the regenerator lower plenum will significantly improve the flow pattern. Production experience has shown that the longitudinal checker packing temperature is balanced by the air jet technique. This in turn has yielded several benefits including fuel savings as high as 4%. High velocity air jets can also be used to effectively distribute combustion air. To increase port combustion air input, the air jet is oriented parallel to incoming combustion air flow. To decrease port combustion air, the jet is installed to oppose air input. Plant trials have shown that this technique is very effective in both operating modes. Optimal control of port combustion air distribution will improve fuel efficiency.