The Prandtl number, Np,, is a dimensionless group important in heat-transfer calculations. It is defined as Cpfdk. where Cpis the heat capacity of a fluid, n is the fluid viscosity, and k is the thermal conductivity. For a particular fluid, Cp= 0.583 J/(g°C), it = 0.286 W/(m °C), and n = 1936 lbn,/(ft h). Estimate the value of Np, without using a calculator (remember, it is dimensionless), showing your calculations; then determine it with a calculator.
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