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The pressure and temperature of a diesel cycle at the start are 1 bar and 20C respectively and the compression ratio is 14. The pressure at the end of expansions 2.5 bar.
Find percentage of working stroke at which heat is supplied and heat supplied per kg of air.Cp=1.004kj/kg K r=1.4
the diameter of the discharge of a pump efficiency.808 is 6 inches and that of the intake pupe is 8 inches. the vacuum
bullet moving at a velocity of 1000 ms through air at sea-level conditions. what are the maximum temperature and
Capacitors C1=12micro Farad and C2=28microFarad are each charged to 15V , then disconnected from the battery without changing the charge on the capacitor plates. The two capacitors are then connected in parallel, with the positive plate of C1 connect..
Moist air at 45?C and relative humidity 30% (State 1) with another stream of moist air at 20?C and relative humidity 50% (State 2) in an adiabatic duct. Mass flow rate of dry air is 0.8 kg/s at section 1 and 1 kg/s at section 2. The mixed stream (Sta..
A Brayton cycle uses air and produces a net work of 14000 Btu/s with an inlet state of 60°F, 14.7 psi and a compression ratio of 16. The heat added in the combustion process is 400 Btu/lbm. If the thermal efficiency is 0.547 Determine: Using variabl..
A 92% aluminium 8% copper alloy casting is made in a sand mold using a sand core that weighs 20 kg. Determine the buoyancy force (use the books definition) in Newtons tending to lift the core during pouring. (Hints: Sand density = 1.6 g/cm3)
a nozzle is attached to a vertical pipe and discharges water into the atmosphere as shown in the figure. when the
Where θr is the electrical rotor position Determine a set of qd flux linkage equations that are rotor position invariant. To do this, you will need to establish a suitable reference-frame transformation.
If there are two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. With which velocity both the balls move after impact
Write the equations for shear and moment using the origins shown in the figure. Evaluate the shear and moment at C, using the equations based on the origin.
A punch press with flywheel adequate to minimize speed fluctuations produces 120 punching strokes per minute, each providing an average force of 2000 N over a stroke of 50 mm.
Find (a) the angular acceleration, (b) the time taken, (c) the work done, (d) the maximum power developed, (e) the distance travelled by a point on the rim of the flywheel.
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