The porosity of a packed bed can be decreased by vibrating
Chapter 7, Problem 7.111(choose chapter or problem)
The porosity of a packed bed can be decreased by vibrating the containment vessel as the vessel is filled with theparticles. The vibration promotes particle settling.(a) Consider the air chilling process of Problem7.110a. Determine the outlet air temperature To and mass rate at which the PCM is melted for = 0.30. Assume the total mass of PCM and themass flow rate of air are unchanged. The length ofthe containment vessel Lvis decreased to compensate for the reduced porosity. (b) Determine To and the PCM melting rate for thecase where the diameter of the containment vessel Dv is decreased to compensate for the reducedporosity. Which containment vessel configurationis preferred?
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