Question

Convert E-Sign Find text or tools (i) Calculate the superficial gas velocity necessary to fluidize the bed. [1] (ii) What is the percent error in estimating the.gas veloeity in (i) using the expression in part (b)? |4| (iii) At rest the bed has a porosity of 0.4 and a height of 3.66 m . At operating conditions, the fluid viscosity is \( 0.000019 \mathrm{~Pa} . \mathrm{s} \) and its density is \( 1.2 \mathrm{~kg} / \mathrm{m}^{3} \). If at minimum fluidization conditions the porosity is 0.42 , calculate the height of the expanded bed. |1| (iv) I or an operation with a superlicial gas telocity of \( 0.3 \mathrm{~m} / \mathrm{s} \) is solids recirculation necessary? Why? \( |4| \) \[ \operatorname{ma}=\left[d^{3}\left(p_{s}-p_{6}\right) g\right. \]

          Convert
E-Sign
Find text or tools
(i) Calculate the superficial gas velocity necessary to fluidize the bed. [1]
(ii) What is the percent error in estimating the.gas veloeity in (i) using the expression in part (b)? |4|
(iii) At rest the bed has a porosity of 0.4 and a height of 3.66 m . At operating conditions, the fluid viscosity is
\( 0.000019 \mathrm{~Pa} . \mathrm{s} \) and its density is \( 1.2 \mathrm{~kg} / \mathrm{m}^{3} \). If at minimum fluidization conditions the porosity is 0.42 , calculate the height of the expanded bed. |1|
(iv) I or an operation with a superlicial gas telocity of \( 0.3 \mathrm{~m} / \mathrm{s} \) is solids recirculation necessary? Why? \( |4| \)
\[
\operatorname{ma}=\left[d^{3}\left(p_{s}-p_{6}\right) g\right.
\]

Convert
E-Sign
Find text or tools
(i) Calculate the superficial gas velocity necessary to fluidize the bed. [1]
(ii) What is the percent error in estimating the.gas veloeity in (i) using the expression in part (b)? |4|
(iii) At rest the bed has a porosity of 0.4 and a height of 3.66 m . At operating conditions, the fluid viscosity is
0.000019 Pa . s and its density is 1.2 kg / m^3. If at minimum fluidization conditions the porosity is 0.42 , calculate the height of the expanded bed. |1|
(iv) I or an operation with a superlicial gas telocity of 0.3 m / s is solids recirculation necessary? Why? |4|

ma=[d^3(ps-p6) g.

Added by Susana S.

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