Engineering, 15.04.2020 02:49, bentleyevans15
An 8-cylinder 4-stroke Diesel engine with a compression ratio of 17 and displacement volume of 6.5 liters is considered. We analyze a case where the temperature is 350 K and the pressure is 150 kPa before the start of compression. The fuel blend used in this engine has a lower heating value of 40 MJ/kg and the air-fuel ratio of each cycle of the engine is 28. Use heat capacities and ratio of heat capacity values at 900 K, with air as the assumed working gas.
Determine:
a. The maximum temperature of the cycle.
b. The cut-off ratio of the cycle, that is, the volume ratio V3/V2.
c. The net work per kg of air per cylinder.
d. The thermal efficiency of the engine.
e. The Mean Effective Pressure.
f. The specific fuel consumption.
g. The break power in kW and hp at the engine speed of 1000 rpm.
Answers: 2
Engineering, 04.07.2019 18:10, niyawilliams23
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Engineering, 04.07.2019 18:10, meganwintergirl
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
Engineering, 04.07.2019 18:20, CelesteN64
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
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An 8-cylinder 4-stroke Diesel engine with a compression ratio of 17 and displacement volume of 6.5 l...
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