m=ρAUm=ρ(4πd2)Um=996(4π×0.0052)×0.1=0.00195564143
At 10oC,μ=0.001308kg/m.s
Re=μρUmd=0.001308996×0.1×0.005=380.7339
This is a laminar flow
At 10oC,Pr=9.46
Gz−1=(380.7339×9.461)(0.0051)=0.0555
At Gz−1=0.0555, Nu=3.66 and k=0.580W/m.k
h=dNu×k=0.0053.66×0.580=424.56m2C
q=hA(Tw−Tc)=424.56×2π(0.005)(70−10)=800.28W
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