It is required to use an existing $70mm$ inside diameter horizontal smooth pipe

to transfer $2000k\frac{g}{h}$ of sand of mean particle size $270m$ and particle density $2500$

$k\frac{g}{m^3}$ to a process $50m$ from the solids feed point. A blower is available which can

deliver $200\frac{m^3}{h}$ of ambient air at a pressure of $\frac{0\mathrm{.}3}{b}ar.$ Will the system operate as

required? $($Hint check both the pressure drop and saltation velocity$)$

Gas properties: density: $1\mathrm{.}2k\frac{g}{m^3}$ viscosity: $1\mathrm{.}84{10}^{-5}Pa*s$