Air with temperature $50C$ is pumped by blower to the equipment where overpressure is equal to $p_m=300\frac{N}{m^2}.$ Air flow rate is equal to $V_g=0\mathrm{.}2\frac{m^3}{s}$; air density $=1\mathrm{.}09k\frac{g}{m^3}$; air dynamic viscosity $=0\mathrm{.}0196{10}^{-3}$ Pas. Pipe line has outer diameter $d_z=102mm$ and inner diameter $d_w=90mm.$ Length of the pipeline is equal to $30m.$ Pipe line is equipped with $5$ reducing pipes $($coefficient of local resistance ${}_1=18\mathrm{.}2),4$ gate valves $({}_2=0\mathrm{.}5),8$ elbows $)=(0\mathrm{.}23$ inlet stub pipe $)=(0\mathrm{.}2$ outlet stub pipe $)=(1.$ Calculate power of the blower $N$ if total efficiency of the used equipment is equal to ${}_{\text{t}\text{o}\text{t}}=0\mathrm{.}35$