Hot exhaust gases of a stationary diesel engine are to be used to generate steam in an evaporator. exhaust gases (cp = 1051 j/kg·k) enter the heat exchanger at 550°c at a rate of 0.25 kg/s while water enters as saturated liquid and evaporates at 200°c (hfg = 1941 kj/kg). the heat transfer surface area of the heat exchanger based on the water side is 0.5 m2 , and the overall heat transfer coefficient is 1780 w/m2 ·k. determine the rate of heat transfer, the exit temperature of the exhaust gases, and the rate of evaporation of the water.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

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

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.