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A four-stroke-cycle engine operates on the air-standard Diesel cycle. The engine has six cylinders with a 0.105 m bore and a 0.124 m stroke. The engine speed is 2000 rpm. At the beginning of compression, the air is at 0.93 bar and 24 C and the maximum temperature is 1950 C. If the clearance volume is 6% of the displacement volume, compute the compression ratio, the pressure [bars] and temperature [C] at the end of the compression process, the thermal efficiency, and the horsepower output of the engine. Also determine the efficiency and the horsepower output if the cutoff ratio is halved. Assume the air is an ideal gas with constant specific heats. Its specific heat ratio is 1.4 and gas constant is 0.287 kJ/kg- K.
consultant 2310 per week overtime-not applicable 3 withholding allow.comp. prog. 34 per hour 1.5 times hourly rate for
a certain generating power plant requires 1 mw output. two types of diesel- engine installations are available. one
a charge of 18 nc is uniformly distributed along a straight rod of length 3.0 m that is bent into a circular arc with a
the dates of importance in connection with a cash dividend of 65000 on a corporations common stock are january 15
the data show the bug chirps per minute at different temperatures. find the regression equation letting the first
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just to give you some guidelines on the extra credit budget assignment we talked about. there are two parts1. create a
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a wave pulse travels down a slinky. the mass of the slinky is m 0.93 kg and is initially stretched to a length l 6.2
an insulated vertical piston-cylinder device initially contains 11.56 kg of water 6.94 kg of which is in vapor phase.
Explain the characteristics of the Phugoid motion. What is the governing aerodynamic derivative which determines the convergence or otherwise of the motion?
blood at 37degc enters the left ventricle lv of a skier at a rate of 100 mls. at time t 0 the skier steps outside and
The die characteristic is Q_x = 0.0015p where p is the head pressure in psi. Determine the flight angle that maximizes the flow rate Q_x and graph it.
A ball with a mass of 0.25 kg is thrown vertically upward with an initial velocity of 10 m/s. What is the velocity of the ball when it reaches the highest point?
for a crystal with a cubic structure sketch its unit cells showing the following crystallographic directionsa 011 b 212
If the density of air is 1.20 kg/m^3 at the inlet and 1.05 kg/m^3 at the exit, determine the percent increase in the velocity of air as it flows through the dryer.
air is contained in a vertical piston-cylinder assembly by a piston of mass 50 kg and having a face area of 0.01 m2.
The total time it takes to fall is 37 seconds. Find the horizontal lead to hit the target.
Determine the natural frequencies of the system. For the baseline system I get natural frequencies at the following engine speeds: 435, 2026, 2818, 5225, 7093, 10245, and 12153 rpm.
engine B is supercharged with after cooling and has cylinder inlet condition of 80c and 130 k pa to avoid knock problem it is desirable to have the air-fuel temperature at the start of combustion in engine B to be the same as in engine A calculate..
what is the specific volume, internal energy (kj/kg) and enthalpy (kj/kg) for water at 1.8 mpa and 120 Degrees C? Locate the state on p-v diagram and document assumptions.
Steam at 10bar and 0.95 dry flows at 130 m/sec in a pipe. It is throttled to 8 bar and the flow rate is 12 kg/sec. Assuming velocity in the pipe on the down stream side of the valve is 160 m/sec. Find the final condition of steam and the pipe diam..
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