Q2) A packed bed has a following properties, consist of a hollow cylindrical particles (di-6mm ,do-12mm, I=15 mm) which has a same volume of spherical pellet. Based on Ergun equation, estimates the spheresity of particle, packed bed pressure drop, minimum fluidization velocity, and maximum velocity Pe(kg/m3) m (kg/h) p (kg/m) u (cp) d(m) L(m) Emd 0.53 1600 2000 1.16 0.0182 1.25 3 0.42

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