Calculate the rate of heat transfer from a bare carbon steel pipe (10 cm diameter, 0.5 cm thick) carrying steam at 200 C. Heat transfer coefficient inside and outside of the pipe are 300 and 100 W/m2.C respectively. We want to reduce the heat loss from the pipe by 95%. Calculate the thickness of the fiber glass insulation to achieve this objective. The heat transfer coefficient on the insulation remain the same as on the pipe. Pipe length is 200 meters.

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

On a average work day more than work place firs are reorted

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