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     EduGorilla 
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    Direction: For a liquid flowing through a packed bed, the pressure drop per unit length of the bed  is

    Where superficial liquid velocity,  is the bed porosity, is average particle size, is particle sphericity, pf is liquid density and is liquid viscosity.
    Given data: = 110–3 m, = 0.8, pf = 1000 kg/ m3. = 1  10–3 kg m–1 s–1, particle density, pp = 25000 kg/ m3 and acceleration due to gravity, g = 9.8 m/s2

    On further increasing , incipient fluidization is achieved. Assuming that the porosity of the bed remains unaltered, the pressure drop per unit length (in Palm) under incipient fluidization condition is

    Options :-

    1. 3675
    2. 7350
    3. 14700
    4. 73501
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