Fixed and Fluidized Bed 결과레포트

목차

1. Objecive
2. Theory
3. Experimental equipment
4. Experimental Peocedures
5. Result
6. Discussion

본문내용

1. Objecive
On completion of this experiment, students will be able to:
• Determine the pressure drop and bed expansion through a fixed and fluidized bed.
• Measure pressure as a function of flow rate through a bed of particles that are not constrained.
• Determine minimum fluidization from experimental data

2. Theory
Fluidization is an operation by which a bed of solid particles acquires fluid-like properties by passing a gas or liquid through it. Fluidization can be best pictured by considering a vessel partly filled with a column of solids (Figure 1). Through a perforated bottom, a gas is injected into the vessel. The sequence of events, as the gas flow rate increases, is typically as follows:
• For low flow rates, the gas simply flows through the particle interstitial space. The particles remain stationary, the bed behaves like a porous medium and is called a fixed bed (Figure 1a).
• As the gas velocity increases

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