A Heat pipe for an electronics uses ethanol as the working fluid. The evaporator is $2$

cm long, the condenser is $3$ cm long, and the heat pipe has no adiabatic section.

The diameter of the vapour space is $3$ mm and the wicking structure consists of $3$

layers of of # $500$ mesh $304$ SS screen $($wire diameter $=0\mathrm{.}00085$ in$).$ If the heat

pipe operates at $30$oC in a horizontal position, determine the capillary, sonic and

boiling limits$.$