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A diesel engine uses 54.4 kg of fuel oil/h of calorific value 45 MJ/kg. The thermal efficiency of the engine is 25%. Determine the power output of the engine in kilowatts.
What is the force P to keep the system in equilibrium for the angles specified?
a piston-cylinder device initially contains 1.4 kg of refrigent-134a at 140 kpa and 20 degc. heat is now transferred to
for flow over a circular cylinder as shown below the velocity outside of boundary layer can be estimated to beux 2
the system on site is a pressure sand filter with a service curve. the filter is backwashed using the feed pump at a
air flows in a channel whose velocity at 3 neighbouring points ab and c which are 10 cm apart are shown in the
the molar heat capacity of liquid iron exceeds that of iron vapor by 2.5222calkthe molar heat of evaporation of liquid
a combined gas-vapor power plant operates as shown in fig.9.94. pressure and temperature data are given at principal
A reversible heat engine operates between 875 K and 310 K and drives a reversible refrigerator operating between 310 K and 225 K. the engine receives 2000 kJ of heat and the net work output from the arrangement equals 350 kJ. make calculations for..
1. the contraption below has a face cam with an elliptic pro?le pushing a push rod against a spring. the face cam is
the lower end of the 30 kg slender rod is displaced a small amount and released from the rest. determine the natural
What is the packing density
Estimate the torque required at the base of a flag pole to hold it in place in a 30mph wind. Assume the flag pole is a vertical cylinder with D=10cm and L=10m, and assume the wind drag force is uniform along the pole.
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