| 학회 | 한국화학공학회 |
| 학술대회 | 2003년 봄 (04/25 ~ 04/26, 순천대학교) |
| 권호 | 9권 1호, p.963 |
| 발표분야 | 이동현상 |
| 제목 | Theoretical Analysis of Transport Phenomena of Ceramic Particles in a Rotary Disk Spray Dryer |
| 초록 | Spray drying is an unit process in which liquid fed from other process is converted into dry particles. The liquid feed is atomized in the spray chamber and the resulting droplets are mixed with hot gas. Because of the short drying time resulting from high surface area of the sprayed droplets, spray drying process is very suitable for drying heat-sensitive materials. In the present study numerical simulation of mass, momentum and energy exchange between ceramic particles and hot air were implemented by using commercialized code, Fluent6.0. Since hot air entering into the chamber has a swirlling effect caused by dispersers' vane angle, a mathematical model containing swirlling or rotation effect was needed. So we chose the RNG k-ε model rather than the standard k-ε model. Particle trajectories in air flow were calculated by using Lagrangian model under assumption of particle being spherical. |
| 저자 | 김두진, 이성철, 문세기 |
| 소속 | 한양대 |
| 키워드 | spray drying; rotary disk; RNG k-ε |
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