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유동상내에서 고체입자의 혼합 특성
Mixing Behavior of Solid Particles in Fluidized Beds
HWAHAK KONGHAK, June 1975, 13(3), 111-118(8), NONE
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Abstract
유동상에서의 작동조건에 따른 고체입자의 혼합현상을 관찰하였으며, 현상의 직접관찰을 용이하게 하기 위해서 이차원상의 이면의 광원이 상을 통과하는 광강도를 이용하였다. 그 결과 effective diffusivity는 대fir nh2에 비례하였으며, 또 diffusion parameter, Dz/nh2, 는 system parameter, ρpDp/Lρf 및 operation parameter, （Uo-Umf）/Umf,와 다음과 같은 관계가 있음을 알았다. 즉
DZ/nh2 = 3.1×104（ρpDp/Lρf）1.5(U0-Umf/Umf)1.9
DZ/nh2 = 3.1×104（ρpDp/Lρf）1.5(U0-Umf/Umf)1.9
Phenomenon of solid-particle mixing in bubbling beds was observed with various operating conditions. Direct observation was easily achieved by using light intensity method through two-dimensional bed. The effective diffusivity was approximately proportional to nh2, and the diffusion parameter, Dz/nh2, was correlated to the system parameter, ρpDp/Lρf, and operation parameter, （UZew-Umf）/Umf, as
