In a particular application involving fluid flow at a rate m through a circular tube of length L and diameter D, the surface heat flux is known to have a sinusoidal variation with x, which is of the form q″s (x) = q″s, m sin(π x/L). The maximum flux, q″s, m, is a known constant, and the fluid enters the tube at a known temperature, Tm, i. Assuming the convection coefficient to be constant, how do the mean temperature of the fluid and the surface temperature vary with x?

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.