循環流動層ボイラ内伝熱に及ぼす各種パラメータの影響

概要

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Analyses are carried out to study the effects of air velocity, particle circulating rate and fuel/air ratio on the profiles of the temperature and the heat fiux in circulating fluidized bed boilers. The particle density profile in the bed is obtained by solving a set of one-dimensional two-phase flow equations. The radiative heat transfer in the two-phase flow system is solved by using the Monte Carlo method. The following is obtained as the result. When the air velocity is increased, heat fiux to the wall is increased although the average bed temperature does not change appreciably. When the particle circulation rate is increased, the heat flux decreased although the bed temperature increased. When the fuel/air ratio is increased, both the bed temperature and the heat flux are increased.
社団法人日本機械学会の論文
1991-09-25