$4\mathrm{.}1.$ TEXTBOOK PROBLEM: NODAL METHOD

A service reservoir, $A,$ delivers water through a trunk pipeline ABC to the distribution network having

inlets at $B$ and $C.$ Pipe $AB$:$L=1000m$;$D=400mm$;$=0\mathrm{.}06mm.$ Pipe $BC$:$L=600m$;$D=300mm$;$=$

$0\mathrm{.}06mm.$ The water surface elevation in the reservoir is $110m$ o$.$d$.$ Determine the maximum

permissible outflow at $B$ such that the pressure

head elevation at $C$ does not fall below $90\mathrm{.}0m$

o$.$d$.$ Neglect losses other than friction, entry

and velocity head. Outflow at C $=1601/$s$.$

$4\mathrm{.}2.$ TEXTBOOK PROBLEM: NODAL METHOD

Calculate the energy heads in meters and

pressures in kPa at nodes $B$ and $E$