Consider a circular furnace that is 0.3 m long and 0.3 m in diameter. the two ends have diffuse, gray surfaces that are maintained at 400 and 500 k with emissivities of 0.4 and 0.5, respectively. the lateral surface is also diffuse and gray with an emissivity of 0.8 and a temperature of 800 k. determine the net radiative heat transfer from each of the surfaces. consider two very large metal parallel plates.

Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false