NaK (45%/55%), which is an alloy of sodium and potassium,
Chapter , Problem 8.43(choose chapter or problem)
NaK (45%/55%), which is an alloy of sodium and potassium, is used to cool fast neutron nuclear reactors. The NaK flows at a rate of m . 1 kg/s through a D 50-mmdiameter tube that has a surface temperature of Ts 450 K. The NaK enters the tube at Tm,i 332 K and exits at an outlet temperature of Tm,o 400 K. Determine the tube length L and the local convective heat flux at the tube exit. 8.4
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