Using data from large CFB boilers, and taking average solids concentration, size and height of the boiler-furnace as variables, a correlation for fractional wall coverage has been developed. This correlation for wall coverage and several other refinements have been used to modify the cluster renewal model of heat transfer. Predicted heat transfer coefficients from this model, for a wide range of CFB boilers, show good agreements with those measured in these boilers.
An Improved Cluster-Renewal Model for the Estimation of Heat Transfer Coefficients on the Furnace Walls of Commercial Circulating Fluidized Bed Boilers
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division June 3, 2003; revision received July 17, 2004. Associate Editor: S. Acharya.
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Dutta , A., and Basu , P. (January 26, 2005). "An Improved Cluster-Renewal Model for the Estimation of Heat Transfer Coefficients on the Furnace Walls of Commercial Circulating Fluidized Bed Boilers ." ASME. J. Heat Transfer. December 2004; 126(6): 1040–1043. https://doi.org/10.1115/1.1833360
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