液相循環流動床における圧力損失と熱伝達のアナロジー(熱工学,内燃機関,動力など)

概要

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An analogy was found between the frictional pressure drop and the heat transfer in liquid-solid circulating fluidized beds. This investigation is based on three correlations for the particle holdup, the heat transfer coefficient and the pressure drop, which were developed by the authors. When the heat transfer coefficients were expressed in terms of the modified j-factor, then a close mutual relationship was observed between the modified j-factor and the friction factor for the frictional pressure drop due to the liquid and the particle flow. The mutual relationship.could be approximated by a correlation composed of the density ratio and the non-dimensional riser diameter. Heat transfer coefficient predicted from the frictional pressure drop agreed well with the experimental data by the authors, and also with existing data.
社団法人日本機械学会の論文
2008-09-25