hydraulič flu preheater consists of a single tube With a in and a lengin of L=5 m. The tube surface is maintained at Ts = 200°F by hot combustion gases flowing past the outside surface. The hydraulic fluid enters at To = 80°F and a mass flow rate of 370 lbm/h. (a) Determine the convection heat transfer coefficient for the hydraulic fluid flowing through the tube. b) Determine the hydraulic fluid exit temperature. (c) Determine the heat transfer rate to the hydraulic fluid. (d) Determine the power required to pump the hydraulic fluid through the tube.

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Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.