Fluid enters a tube with a flow rate of 0.015 kg/s and an inlet temperature of 20 degree c.
the tube, which has a length of 6 m and diameter of 15 mm, has a surface temperature of 30 degree c.

a)determine the heat transfer rate to the fluid if it is water.

b)determine the heat transfer rate for the nanofluid of example 2.2.

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

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false