移動する高温固体粒子層から気体により熱を回収するシステムの過渡特性に関する一考察 : 第1報

概要

論文の詳細を見る
Moving-bed heat exchangers have extensively been used for waste-heat recovery from hot particles in many industries. However, if the particle diameters are large, the heat-conduction effect within the particles has to be taken into account. In this paper, a model of the heat exchangers, taking into account the heat conduction within the particles, is proposed. In addition, three dimensionless parameters (Cr, NTU and Biot number), governing the characteristics of the heat exchangers are described. The proposed model has subsequently been employed for calculating the transient response of the temperature of the outlet gas, subject to step changes of the moving-bed speed. It has been found that the dynamic characteristic of the heat exchangers is dependent not only upon the heat conduction, but also upon Cr and NTU. The heat conduction has a more significant effect on the static behavior than does the dynamic characteristic of the heat exchangers. Furthermore, the experimental data have also been presented to confirm the validity of the proposed model.
社団法人日本機械学会の論文
1991-10-25