1. (10 pts) Consider a steady-state gearbox (shown below), which is the system, receiving 60 kW...

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1. (10 pts) Consider a steady-state gearbox (shown below), which is the system, receiving 60 kW through the input shaft, delivering power through the output shaft, and exchanging heat with the surroundings by convection. Pertinent parameter values are as follows: kw Convective heat transfer coefficient, h=0.171 m2.K Outer surface area of gearbox, A = 1.0 m = [w] = 0.95 Mechanical efficiency, n = Temperature of surrounding air, T = 293 K Calculate the surface temperature of the gearbox, T. W =-60 kW 1 Input shaft Outer surface A-1.0 m T = 293 K h = 0.171 kW/m. K Gearbox Output shaft 2 1. (10 pts) Consider a steady-state gearbox (shown below), which is the system, receiving 60 kW through the input shaft, delivering power through the output shaft, and exchanging heat with the surroundings by convection. Pertinent parameter values are as follows: kw Convective heat transfer coefficient, h=0.171 m2.K Outer surface area of gearbox, A = 1.0 m = [w] = 0.95 Mechanical efficiency, n = Temperature of surrounding air, T = 293 K Calculate the surface temperature of the gearbox, T. W =-60 kW 1 Input shaft Outer surface A-1.0 m T = 293 K h = 0.171 kW/m. K Gearbox Output shaft 2